Siemens 3RR2 User Manual Download

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Introduction

1.1 Service&Support

3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004

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Summary of Contents for 3RR2

Page 1: ...Gerätehandbuch Manual Industrial Controls Monitoring and Control Devices 3UG4 3RR2 Monitoring Relays Edition siemens com 05 2016 ...

Page 2: ......

Page 3: ...AC 004 Introduction 1 Safety information 2 System overview 3 3RR2 current monitoring relays 4 3UG4501 filling level monitoring relay 5 3UG4 1 line monitoring relay 6 3UG4621 3UG4622 current monitoring relays 7 3UG4625 residual current monitoring relay with 3UL23 transformer 8 3UG458 insulation monitoring relay 9 3UG463 voltage monitoring relay 10 3UG4641 cos phi and active current monitoring relay...

Page 4: ...only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Siemens pr...

Page 5: ...terminals 28 3 4 Mounting removal 29 3 4 1 Mounting 3RR2 current monitoring relay 29 3 4 2 Mounting the 3UG4 monitoring relay 34 3 4 3 Installing the 3UG458 monitoring relay 35 3 5 Overview of the functions 36 3 5 1 3RR2 current monitoring relays 36 3 5 2 3UG45 3UG46 monitoring relays 37 3 6 Menu based operation 39 4 3RR2 current monitoring relays 45 4 1 Product description 45 4 2 Application area...

Page 6: ... areas 102 6 2 3UG4511 line monitoring relay 103 6 2 1 Operator controls and connection terminals 103 6 2 2 Function 104 6 2 3 Diagnostics 105 6 2 3 1 Diagnostics with LED 105 6 2 4 Circuit diagrams 106 6 2 5 Technical data 107 6 3 3UG4512 line monitoring relay 111 6 3 1 Operator controls and connection terminals 111 6 3 2 Function 112 6 3 3 Diagnostics 114 6 3 3 1 Diagnostics with LED 114 6 3 4 C...

Page 7: ...6 7 3 Operation 161 6 7 4 Diagnostics 162 6 7 4 1 Indications on the display 162 6 7 4 2 Reset 164 6 7 5 Circuit diagrams 165 6 7 5 1 Internal circuit diagrams 165 6 7 5 2 Wiring examples 166 6 7 6 Technical data 167 7 3UG4621 3UG4622 current monitoring relays 173 7 1 Application areas 173 7 2 Operator controls and connection terminals 174 7 3 Functions 175 7 4 Operation 179 7 5 Diagnostics 180 7 ...

Page 8: ...eristics 231 9 3 7 Technical data 233 9 4 3UG4582 3UG4583 insulation monitoring relays 235 9 4 1 Operator controls and connection terminals 235 9 4 2 Functions 238 9 4 2 1 Function diagrams 243 9 4 3 Operator control 249 9 4 4 Diagnostics 253 9 4 4 1 Diagnostics with LEDs 253 9 4 5 Circuit diagrams 255 9 4 5 1 Internal circuit diagrams 255 9 4 5 2 Wiring examples 256 9 4 6 Characteristics 261 9 4 ...

Page 9: ... and connection terminals 308 12 3 Functions 309 12 4 Operation 312 12 5 Diagnostics 313 12 5 1 Indications on the display 313 12 5 2 Reset 314 12 6 Circuit diagrams 315 12 6 1 Internal circuit diagrams 315 12 6 2 Wiring examples 316 12 7 Technical data 317 13 Accessories 323 13 1 Accessories for 3RR2 current monitoring relays 323 13 1 1 Sealable cover 323 13 1 2 Terminal support for stand alone a...

Page 10: ...3 2 1 Internal circuit diagrams 355 13 3 2 2 Technical data 358 A References 361 B Parameters 363 C Dimension Drawings 375 C 1 Dimension drawings 3RR2 monitoring relay 375 C 2 Dimension drawings 3UG4 monitoring relays 383 C 2 1 Dimension drawings 3UG4 monitoring relays 2 connecting terminals 383 C 2 2 Dimension drawings 3UG4 monitoring relays 3 connecting terminals 384 C 2 3 Dimension drawings 3UG...

Page 11: ...ices that is valid at the time of publication 1 1 Service Support Online Support The Online Support in the Service Support portal is an extensive information system for all questions relating to Siemens products and solutions This service enables direct and central access to in depth information concerning the products systems and applications for industry and to a large number of programming conf...

Page 12: ...d certificates Test certificates and characteristic curves All Product Support information is at your disposal free of charge and around the clock and you always get the current version Link Product Support http support automation siemens com WW view en 4000024 CAx data The CAx Download Manager provides you with a simple means of gaining access to up to date product data for your CAx or CAe system...

Page 13: ...tatements Demonstration systems videos Link Applications Tools http support automation siemens com WW view en 20208582 My Documentation Manager My Documentation Manager enables you to compile your own documentation from our standard documents manuals which are located in the Product Support section Under mySupport you have the opportunity to create and manage you own compilations in a structure of...

Page 14: ...n ps 16364 td 1 Enter the full article number of the desired device in the Product field and confirm with the Enter key 2 Click the Technical data link Compare products You can compare the technical data of the products in Siemens Industry Online Support 1 Select the products you want to compare 2 Click the Compare technical data button Further documentation To install and connect the monitoring r...

Page 15: ...Matrix codes as a bit stream Article number Serial number If applicable MAC address This information is stored in the following format in the DataMatrix code 1P Article number S Location Date Serial number Data identifier User content Separator User content Separator User content User content Note The information content is displayed without spaces This machine readable information simplifies and ...

Page 16: ...The SIEMENS Industry Support app is available for iOS and Android based devices and can be accessed via the following links Link for Android Link for iOS Recycling and disposal These devices can be recycled thanks to their low pollutant content For environmentally friendly recycling and disposal of your electronic waste please contact a company certified for the disposal of electronic waste Up to ...

Page 17: ...dditional requirements for current transformers EMC standard1 IEC EN 61000 6 2 Generic standards Immunity for industrial environments IEC EN 61000 6 4 Generic standards Emission standard for industrial environments Resistance to extreme climates IEC 60721 3 3 Classification of environmental conditions The monitoring relays are climate proof according to IEC 60721 3 Touch protection IEC EN 60529 De...

Page 18: ...ograms that you have written yourself make sure that running the plant cannot cause injury to anyone else or damage to the machine itself Hazardous Voltage WARNING Hazardous Voltage Will cause death or serious injury Turn off and lock out all power supplying this device before working on this device Radio interference Note The devices have been built as Class A devices Use of these devices in dome...

Page 19: ... dips or load variation the monitoring relays have settable delay times This avoids unnecessary alarming and shutdowns while enhancing plant availability The individual 3UG4 monitoring relays offer the following functions in various combinations Undershoot and or overshoot of liquid levels Phase sequence Phase failure neutral failure Phase asymmetry Undershoot and or overshoot of voltage threshold...

Page 20: ...can be obtained on request on the Internet www siemens com automation csi_en Operating conditions and resistance to extreme climates The monitoring relays are climate proof They are intended for use in enclosed spaces in which no severe operating conditions prevail e g dust caustic vapors hazardous gases Appropriate measures must be taken when installing in areas subject to dust and humidity Conde...

Page 21: ...h captive screws and washers The screw terminals also allow for the connection of 2 conductors with different cross sections Connection cross sections of the removable terminal blocks with screw type connections Table 3 1 Removable terminal block with screw type connections monitoring relays Removable terminal Tool Pozidriv size PZ 2 Ø 5 to 6 mm Tightening torque 0 8 to 1 2 Nm Solid and stranded 1...

Page 22: ...connection Main conductor terminals of the 3RR2 current monitoring relays Permanently connected terminal Size S00 Size S0 Size S2 Tool Pozidriv size PZ 2 Ø 5 to 6 mm Pozidriv size PZ 2 Ø 5 to 6 mm Pozidriv size PZ 2 Ø 5 to 6 mm Tightening torque 0 8 to 1 2 Nm 2 2 5 Nm 3 to 4 5 Nm 27 to 40 lb in Solid and stranded 2 x 0 5 to 1 5 mm 2 x 1 to 2 5 mm 2 x 1 0 to 35 mm 2 x 0 75 to 2 5 mm 2 x 2 5 to 10 m...

Page 23: ...spring loaded connection can no longer be used in a problem free manner For this reason size S2 current monitoring relays are only offered with screw type or spring loaded terminals in the control circuit The terminals of the main current paths are always screw type terminals Solid Finely stranded Stranded Finely stranded with end sleeve a Spring loaded terminal b Busbar Image 3 1 Spring loaded te...

Page 24: ...er automatically This ensures that any conductor deformation caused by settling creepage or yielding is compensated for The clamping point cannot become loose of its own accord This connection is vibration and shock proof Vibrations or shocks will not damage the conductor nor will they cause contact separation These terminals are particularly well suited for use with machines and systems which are...

Page 25: ...p Instructions Figure 1 Insert the screwdriver into the respective operating slot 2 Press the screwdriver down then push it into the operating slot as far as it will go The screwdriver blade keeps the spring loaded terminal open automatically 3 Insert the conductor into the oval connection slot 4 Remove the screwdriver The terminal closes and the conductor is now securely clamped Note Damage to sp...

Page 26: ...rating instruction Figure 1 Insert the screwdriver into the topmost A or bottommost B operating slot on the right hand side 2 Press the screwdriver up A or down B then push it into the operating slot as far as it will go The screwdriver blade keeps the spring loaded terminal open automatically 3 Insert the conductor into the oval connection slot 4 Remove the screwdriver The terminal closes and the...

Page 27: ...ions of the permanently connected terminal blocks with a spring loaded connection The following table lists the permissible conductor cross sections for the main conductor terminals of the 3RR2 current monitoring relays for analog and digital setting size S00 and S0 with a spring loaded connection Table 3 6 Permanently connected terminal block with spring loaded connection main conductor terminals...

Page 28: ...ecessary The mechanical coding on the terminals prevents mix ups Note The terminals can only be dismantled in the following order due to their arrangement on the monitoring relay 1 Lower front terminal A 2 Lower rear terminal B 3 Upper front terminal C 4 Upper rear terminal D Step Instructions Figure 1 Press the interlock in the direction of the removable terminal 2 Remove the terminal to the fron...

Page 29: ...t direct mounting can be achieved easily Alternatively the devices can also be installed individually in the case of stand alone assembly or if a 3RU2 3RB3 overload relay is being used at the same time The accessories required for separate mounting are described in Chapter Terminal support for stand alone assembly Page 324 Minimum clearance The following minimum clearances from grounded and live p...

Page 30: ...p Instructions Figure 1 Push the current monitoring relay into the contactor from below Attach the two hooks on the current monitoring relay to the two openings on the rear of the contactor This pushes the main current contacts into the corresponding terminals on the contactor 2 Tighten the screws on the contactor with a Pozidriv size 2 S00 or Pozidriv size 3 S0 screwdriver tightening torque 0 8 1...

Page 31: ...ctly flush with the contactor on the left and right hand sides The figures below show the openings of the main conductor terminals on the contactor S00 and S0 into which the contacts on the current monitoring relay have to be inserted Main conductor terminal on the contactor a S00 Main conductor terminal on the contactor a S0 Note Adapter for direct mounting on 3RF34 solid state contactor For dire...

Page 32: ... system size S0 Step Instructions Figure 1 Undo the screws on the main conductor terminals 2 Pull the current monitoring relay down and away from the contactor Table 3 10 Removing the 3RR2 current monitoring relay spring loaded connection system size S00 Step Instructions Figure 1 Position the screwdriver on the current monitoring relay as shown in the figure Carefully dislodge the current monitor...

Page 33: ...tructions Figure 1 Undo the screws on the main conductor terminals 2 Pull the current monitoring relay down and away from the contactor 3 Push the release slide down with a screwdriver 4 5 Swing the contactor upwards to remove it Separately mounted Note The accessories required for separate mounting are described in the Chapter Terminal support for stand alone assembly Page 324 ...

Page 34: ...gs on the monitoring relay at the top and bottom and use the screwdriver to secure the device by screwing suitable screws through the holes in the push in lugs Standard rail mounting The illustration below shows how to mount the 3UG4 monitoring relay onto a standard rail Table 3 13 Mounting the monitoring relay mounting on and removing from standard rail Step Operating instruction Image 1 Position...

Page 35: ...3UG458 insulation monitoring relay mounting onto standard rail Step Instructions Figure 1 2 Position the device on the top edge of the DIN rail and press down until it snaps onto the bottom edge of the DIN rail Table 3 15 Removing the 3UG458 insulation monitoring relay Removing from standard rail Step Instructions Figure 1 2 To remove apply the screwdriver to the device and push it up with a twist...

Page 36: ...21 3RR22 Current monitoring Monitoring for undercurrent 2p 3p Monitoring for overcurrent 2p 3p Apparent current monitoring Active current monitoring Range monitoring 2p 3p Monitoring for phase failure wire break 2p 3p Monitoring for phase sequence Internal ground fault detection fault current monitoring Blocking current monitoring Supply voltage Self powered without auxiliary voltage Externally po...

Page 37: ...nitoring for undervoltage 3p 3p 3p 3p 3p 3p 1p 1p 1p Monitoring for overvoltage 3p 3p 3p 3p 1p 1p 1p Monitoring for N conductor failure Automatic direction of rotation correction in the case of incorrect phase sequence Power factor monitoring and current monitoring Monitoring for undercurrent 1p 1p 1p Monitoring for overcurrent 1p 1p 1p Active current monitoring Apparent current monitoring Power f...

Page 38: ...asurement tRMS use with frequency converters The monitoring relays work with an electronic measuring method which calculates the actual effective value of a measured value tRMS regardless of whether the measured variable s waveform is purely sinusoidal or distorted The measured signal must only meet the following requirements Periodic waveform sinusoidal within the specified frequency range Contin...

Page 39: ...ersion and as long as no faults have occurred one or more different measuring values can be displayed with the help of the arrow keys In the event of a fault the display indicates the type of fault by means of flashing symbols By repeatedly pressing the SET key briefly it is possible to set the desired type of monitoring overshoot undershoot or range monitoring and parameterize the lower and or up...

Page 40: ...ee below Measured value1 Measured value2 RUN VALUE Settings of the monitored thresholds see below RUN ERROR Status display in the event of a fault If a threshold is overshot or undershot the outputs of the monitoring relays switch over after the set delay time The display indicates the type of error Error1 Error2 Error detected SET Settings for basic device parameters see below ...

Page 41: ...ues on devices with multiple outputs In this case the display automatically switches between the name of the measured value and the actual measured value represents the selected type of monitoring overshoot undershoot or range monitoring An arrow symbol indicates whether the measuring value is within above or below the set thresholds Next to this one or two symbols represent the type changeover co...

Page 42: ...d can be looked up in the relevant chapters on operation in this manual You can find full details of menu based operation for the individual devices in Appendix D Menu based operation Page 389 Pressing and holding the SET key 2 5 s By pressing and holding the SET key the menu changes from RUN to SET and vice versa RUN SET Menu level change can be started from any display While the SET key is press...

Page 43: ...oth arrow keys simultaneously for more than 2 5 s after removal of the cause of error and with Hand RESET active While the keys are pressed appears on the display The possible settings for resetting the devices via the Reset response parameter can be found in the Operation chapters of the relevant monitoring relays Note 3UG4625 residual current monitoring relays automatically return to showing the...

Page 44: ...System overview 3 6 Menu based operation 3UG4 3RR2 monitoring relays 44 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 45: ...or output also monitors phase sequence phase failure ground fault and blocking current Version for IO Link 3RR24 same as standard version but additionally with IO Link interface for direct interfacing to a PLC for remote parameterization remote diagnostics cyclic transfer of measured values support of the parameter server functionality of IO Link with master as from specification V1 1 with integra...

Page 46: ...rate DIN rail mounting 3RR2 current monitoring relays were conceived for monitoring 3 phase systems Depending on the device version used monitoring of 1 or 2 phase AC systems is possible with the following wiring variants Complete device functionality possible Device functionality only possible with limitations Residual current monitoring not possible switch off Phase sequence monitoring not possi...

Page 47: ... as heaters Monitoring for incorrect phase sequences on mobile equipment such as compressors or cranes Monitoring for high impedance faults to ground caused by damaged insulation or moisture for example Table 4 1 Application areas of the 3RR2 current monitoring relays Function Application Undercurrent Overcurrent Apparent current Active current 3RR22 only Phase failure wire break Phase sequence 3R...

Page 48: ... AA30 24 V AC DC AW30 24 to 240 V AC DC Monitoring for current overshoots and or undershoots 2 phase 2 phase 2 phase Contacts 1 CO contact 1 CO contact 1 CO contact Table 4 3 Performance features of 3RR2 current monitoring relays with digital setting Functions Parameters Current monitoring relays with digital setting 3RR2241 F 30 3RR2242 F 30 3RR2243 F 30 Rated current 1 6 to 16 A 4 to 40 A 8 to 8...

Page 49: ...SIRIUS modular system The devices permit mounting of slim line and compact load feeders in widths of 45 mm S00 and S0 or 55 mm S2 The devices make configuration easier S00 S0 S2 S00 S0 S2 Current range The devices are matched to the other devices in the SIRIUS modular system Just 1 option per size with a wide setting range makes configuration easy S00 1 6 to 16 A S0 4 0 to 40 A S2 8 0 to 80 A S00 ...

Page 50: ...ithout evaluation of the starting current Can be used to monitor motors with lengthy startup 0 s to 60 s 0 to 99 s Tripping delay time Prevents frequent warnings and disconnection in response to currents in the vicinity of the thresholds Permits brief violations of thresholds during operation 0 s to 30 s 0 s to 30 s Operating and indicating elements For setting thresholds and delay times For selec...

Page 51: ... appropriate fuses or the appropriate motor starter protector Provides optimum protection of the loads and operating personnel in the event of short circuits due to insulation faults or faulty switching operations Electrical and mechanical matching to 3RT2 contactors Simplifies configuration Reduces connection outlay and costs Enables stand alone assembly as well as space saving direct mounting Sp...

Page 52: ...3 4 5 5 7 5 kW 3RT20 2 S0 contactors 5 5 7 5 11 15 18 5 kW 3RT20 3 S2 contactors 18 5 22 30 37 kW 3RR2141 1 6 to 16 A X X 3RR2241 1 6 to 16 A X X 3RR2142 4 0 to 40 A X X 3RR2242 4 0 to 40 A X X 3RR2143 8 0 to 80 A X X 3RR2243 8 0 to 80 A X X X with stand alone assembly support You can find further technical information on 3RR24 in the Manual 3UG48 3RR24 monitoring relays for IO Link http support a...

Page 53: ...permanently connected The main circuit can be connected using either the screw type or the spring loaded connection system Label below which there is a DATAMatrix code Device article number Rotary button for startup delay time onDel s Rotary button for tripping delay time Del s Status display via Ready LEDs green for auxiliary voltage and Fault red for switching state Terminal labels B1 Supply vol...

Page 54: ... level of monitoring reliability particularly in the rated and overload ranges The switching states of the output relay are given below in the section entitled Function diagrams Cable break detected Cable break detected No cable break Hysteresis cable break S00 1 2 A to 1 6 A S0 3 0 A to 4 0 A S2 6 0 A to 8 0 A Image 4 1 Diagram of cable break If a cable break zero current in branch circuit 1 L1 2...

Page 55: ...3RR2 current monitoring relays 4 4 3RR21 current monitoring relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 55 Function diagrams Memory O Memory I I I Off I Off I I I ...

Page 56: ... Threshold for current overshoot I 2 1 6 A or OFF1 4 A or OFF2 8 A or OFF3 16 A1 40 A2 80 A3 Continuous 8 A1 20 A2 40 A3 Threshold for current undershoot I 3 1 6 A or OFF1 4 A or OFF2 8 A or OFF3 16 A1 40 A2 80 A3 Continuous Disabled Reset response Memory 4 0 automatic rest 1 manual reset 4 Automatic reset 1 current monitoring relay 3RR2141 A 30 2 current monitoring relay 3RR2142 A 30 3 current mo...

Page 57: ...urrent undershoot I Note Deactivating monitoring If both threshold values are deactivated OFF the following will no longer be monitored Current overshoot Current undershoot The following parameters continue to be monitored Phase failure The parameters are described in the Chapter Parameters Page 363 Required tools The same screwdriver can be used to set the parameters as for mounting the current m...

Page 58: ...atus LEDs indicate the operating state FAULT red READY green Display Meaning FAULT off Measured value is within range limits FAULT steady on Device has tripped FAULT flashes at 1 Hz Delay time is running FAULT flashes at 4 Hz Cable break phase failure detected READY off Voltage is not applied at B1 B2 READY on Voltage is applied at B1 B2 You can find more information about the LED display response...

Page 59: ...nitoring relays Manual 05 2016 NEB927043002000 RS AC 004 59 4 4 5 Circuit diagrams Internal circuit diagrams 3RR21 3RR2141 1A 30 current monitoring relay Image 4 2 1 CO contact 2 phase 3RR2141 2A 30 3RR2142 A 30 3RR2143 A 30 current monitoring relays Image 4 3 1 CO contact 2 phase ...

Page 60: ...sulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 690 Installation altitude at a height over sea level maximum m 2 000 Ambient temperature during storage C 40 80 during operating 25 60 Electromagnetic compatibility IEC 60947 1 IEC 61000 6 2 IEC 61000 6 4 EMC immunity to interference according to IEC 60947 1 ambience A industrial sector EM...

Page 61: ...rating time at AC 15 at 230 V typical 100 000 Adjustable response delay time when starting s 0 60 with lower or upper limit violation s 0 30 Standby time for restart after fault s 0 3 Phase number 3 Number of monitored phases 2 Product function overcurrent monitoring Yes undercurrent monitoring Yes overcurrent and undercurrent monitoring Yes apparent current monitoring Yes active current monitorin...

Page 62: ...ction at 50 60 Hz typical A Type of current for monitoring AC Measurable current for AC A 1 6 16 4 40 8 80 Adjustable switching hysteresis for measured current value A Relative switching hysteresis for measured current value 6 25 Response time maximum s 0 3 Relative repeat accuracy 2 Relative metering precision with regard to measuring range limit 10 Temperature drift per C C 0 1 Current carrying ...

Page 63: ...circuit Yes Type of the connectable conductor cross section for main contacts solid 2x 0 5 1 5 mm 2x 0 75 2 5 mm 2x 1 4 mm 1x 0 5 4 mm stranded finely stranded with conductor end processing 2x 0 5 1 5 mm 2x 0 75 2 5 mm 1x 0 5 2 5 mm without conductor final cutting 1x 0 5 2 5 mm for AWG conductors for main contacts 1x 12 2x 20 14 1x 20 12 for auxiliary contacts solid 1x 0 5 4 mm 2x 0 5 2 5 mm finel...

Page 64: ...control circuit Yes Type of the connectable conductor cross section for main contacts solid 2x 1 2 5 mm 2x 2 5 10 mm 1x 1 10 mm stranded finely stranded with conductor end processing 2x 1 2 5 mm 2x 2 5 6 mm 1x 10 mm 1x 1 6 mm without conductor final cutting 1x 1 6 mm for AWG conductors for main contacts 2 x 16 14 2x 14 8 1x 18 8 for auxiliary contacts solid 1x 0 5 4 mm 2x 0 5 2 5 mm finely strande...

Page 65: ...and control circuit Yes Type of the connectable conductor cross section for main contacts solid 2x 1 35 mm 1x 1 50 mm stranded 2x 1 35 mm 1x 1 50 mm finely stranded with conductor end processing 2x 1 25 mm 1x 1 35 mm without conductor final cutting for AWG conductors for main contacts 2x 18 2 1x 18 1 for auxiliary contacts solid 1x 0 5 4 mm 2x 0 5 2 5 mm finely stranded with conductor end processi...

Page 66: ...ounting direct mounting Width mm 45 Height mm 79 88 91 109 Depth mm 81 93 81 93 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 upwards mm 0 downwards mm 0 sidewards mm 0 Distance to be maintained to earthed part forwards mm 0 6 backwards mm 0 upwards mm 0 6 0 6 downwards mm 0 6 0 6 sidewards mm 6 Distance to be maintained conductive elements forwards mm 0 6 backwards ...

Page 67: ...rect mounting Width mm 55 Height mm 99 Depth mm 112 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 upwards mm 0 downwards mm 10 sidewards mm 0 Distance to be maintained to earthed part forwards mm 10 backwards mm 0 upwards mm 10 downwards mm 10 sidewards mm 10 Distance to be maintained conductive elements forwards mm 10 backwards mm 0 upwards mm 10 downwards mm 10 sid...

Page 68: ...witching element for reporting function non delayed Current carrying capacity of the semiconductor output at DC 13 at 240 V A at AC 14 at 240 V at 50 60 Hz A Residual current of the semiconductor output maximum A Number of NC contacts for auxiliary contacts Number of NO contacts for auxiliary contacts Number of change over switches for auxiliary contacts 1 delayed switching Operating current of th...

Page 69: ...ue V 24 final rated value V 240 at 50 Hz for AC rated value V 24 initial rated value V 24 final rated value V 240 at 60 Hz for AC rated value V 24 initial rated value V 24 final rated value V 240 Insulation voltage of the auxiliary and control circuit for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 300 Impulse voltage resistance of the auxiliary and con...

Page 70: ...rcuit can be connected using either the screw type or the spring loaded connection system Label Device article number Display for parameterization actual value indication and diagnostics Terminal labels B1 Supply voltage B2 Supply voltage Q Semiconductor output e g for pre warning threshold 32 Output relay K1 CO contact NC contact e g for alarm threshold 31 Output relay K1 CO contact root e g for ...

Page 71: ...ndard variations monitor the AC load current apparent current Is or active current Ip that flows through the 1 L1 2 T1 3 L2 4 T2 and 5 L3 6 T3 device terminals The monitoring relay has two separate outputs which respond to separately settable thresholds The devices support further diagnostic options such as residual current monitoring and phase sequence monitoring and are also be used to monitor m...

Page 72: ... the same time for longer than 2 5 s or by disconnecting and reconnecting the auxiliary voltage Note Semiconductor output The semiconductor output always responds in automatic reset Cable break detected Cable break detected No cable break Hysteresis cable break S00 1 2 A to 1 6 A S0 3 0 A to 4 0 A S2 6 0 A to 8 0 A Image 4 4 Cable break If a cable break is detected in a branch circuit time all del...

Page 73: ...elays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 73 Function diagrams Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle I I I I Off n x I I I Off I I I yes ...

Page 74: ...urrent monitoring relays 3UG4 3RR2 monitoring relays 74 Manual 05 2016 NEB927043002000 RS AC 004 Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle I I Off I I yes ...

Page 75: ... A or OFF3 16 A1 40 A2 80 A3 0 1 A1 0 1 A2 0 2 A3 1 6 A1 4 A2 8 A3 RUN Threshold for current overshoot I 1 6 A1 4 A2 8 A3 16 A or OFF1 40 A or OFF2 80 A or OFF3 0 1 A1 0 1 A2 0 2 A3 3 A1 8 A2 16 A3 RUN Warning threshold for current undershoot I 1 6 A or OFF1 4 A or OFF2 8 A or OFF3 16 A1 40 A2 80 A3 0 1 A1 0 1 A2 0 2 A3 1 6 A1 4 A2 8 A3 RUN Warning threshold for current overshoot I 1 6 A1 4 A2 8 A...

Page 76: ...current monitoring relay 2 3RR2242 current monitoring relay 3 3RR2243 current monitoring relay Note The current overshoot or current undershoot monitoring mode is defined with the setting OFF for the upper and lower threshold Note Deactivating monitoring If the upper and lower threshold values are deactivated OFF monitoring will cease for Current overshoot Current undershoot Blocking current The f...

Page 77: ...rent is above the set blocking current I Flashing Fault current detected L Flashing Cable break phase failure detected Flashing Incorrect phase sequence detected Monitoring for current overshoot Monitoring for current undershoot Range monitoring monitoring for current overshoot and current undershoot Current is in correct range A current overshoot has occurred A current undershoot has occurred Not...

Page 78: ...nitoring relays 78 Manual 05 2016 NEB927043002000 RS AC 004 4 5 5 Circuit diagrams Internal circuit diagrams 3RR22 3RR2241 1F 30 current monitoring relay Image 4 5 1 CO contact 3 phase 3RR2241 2F 30 3RR2242 F 30 3RR2243 F 30 current monitoring relays Image 4 6 1 CO contact 3 phase ...

Page 79: ...64 with degree of pollution 3 rated value V 690 Installation altitude at a height over sea level maximum m 2 000 Ambient temperature during storage C 40 80 during operating C 25 60 Electromagnetic compatibility IEC 60947 1 IEC 61000 6 2 IEC 61000 6 4 EMC immunity to interference according to IEC 60947 1 ambience A industrial sector EMC emitted interference according to IEC 60947 1 ambience A indus...

Page 80: ... Adjustable response delay time when starting s 0 99 with lower or upper limit violation s 0 30 Standby time for restart after fault s 0 2 Phase number 3 Number of monitored phases 3 Product function overcurrent monitoring Yes undercurrent monitoring Yes overcurrent and undercurrent monitoring Yes apparent current monitoring Yes active current monitoring Yes undercurrent recognition of 3 phases Ye...

Page 81: ... at 50 60 Hz typical A 1 5 4 8 Relative metering precision with regard to measured value 5 Type of current for monitoring AC Measurable current for AC A 1 6 16 4 40 8 80 Adjustable switching hysteresis for measured current value A 0 1 3 0 1 8 0 2 16 Relative switching hysteresis for measured current value Response time maximum s 0 2 Relative repeat accuracy 2 Temperature drift per C C 0 1 Current ...

Page 82: ... Yes Type of the connectable conductor cross section for main contacts solid 2x 0 5 1 5 mm2 2x 0 75 2 5 mm2 2x 1 4 mm2 1x 0 5 4 mm2 stranded finely stranded with conductor end processing 2x 0 5 1 5 mm2 2x 0 75 2 5 mm2 1x 0 5 2 5 mm2 without conductor final cutting 1x 0 5 2 5 mm2 for AWG conductors for main contacts 1x 12 2x 20 14 1x 20 12 for auxiliary contacts solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 fi...

Page 83: ...control circuit Yes Type of the connectable conductor cross section for main contacts solid 2x 1 2 5 mm 2x 2 5 10 mm 1x 1 10 mm stranded finely stranded with conductor end processing 2x 1 2 5 mm 2x 2 5 6 mm 1x 10 mm 1x 1 6 mm without conductor final cutting 1x 1 6 mm for AWG conductors for main contacts 2 x 16 14 2x 14 8 1x 18 8 for auxiliary contacts solid 1x 0 5 4 mm 2x 0 5 2 5 mm finely strande...

Page 84: ...and control circuit Yes Type of the connectable conductor cross section for main contacts solid 2x 1 35 mm 1x 1 50 mm stranded 2x 1 35 mm 1x 1 50 mm finely stranded with conductor end processing 2x 1 25 mm 1x 1 35 mm without conductor final cutting for AWG conductors for main contacts 2x 18 2 1x 18 1 for auxiliary contacts solid 1x 0 5 4 mm 2x 0 5 2 5 mm finely stranded with conductor end processi...

Page 85: ...mounting direct mounting Width mm 45 Height mm 79 88 91 109 Depth mm 81 93 81 93 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 upwards mm 0 downwards mm 0 sidewards mm 0 Distance to be maintained to earthed part forwards mm 0 6 backwards mm 0 upwards mm 0 6 0 6 downwards mm 0 6 0 6 sidewards mm 6 Distance to be maintained conductive elements forwards mm 0 6 backwards...

Page 86: ...rect mounting Width mm 55 Height mm 99 Depth mm 112 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 upwards mm 0 downwards mm 10 sidewards mm 0 Distance to be maintained to earthed part forwards mm 10 backwards mm 0 upwards mm 10 downwards mm 10 sidewards mm 10 Distance to be maintained conductive elements forwards mm 10 backwards mm 0 upwards mm 10 downwards mm 10 sid...

Page 87: ...semiconductor switching element for reporting function non delayed 1 Current carrying capacity of the semiconductor output at DC 13 at 240 V mA 20 at AC 14 at 240 V at 50 60 Hz mA 20 Residual current of the semiconductor output maximum mA 0 035 Number of NC contacts for auxiliary contacts Number of NO contacts for auxiliary contacts Number of changeover contacts for auxiliary contacts 1 Operating ...

Page 88: ...ue V 24 final rated value V 240 at 50 Hz for AC rated value V 24 initial rated value V 24 final rated value V 240 at 60 Hz for AC rated value V 24 initial rated value V 24 final rated value V 240 Insulation voltage of the auxiliary and control circuit for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 300 Impulse voltage resistance of the auxiliary and con...

Page 89: ...he 3UG4501 filling level monitoring relay Function Application One point filling level monitoring and two point filling level monitoring Overflow protection Dry run protection Leakage monitoring Open loop control of a bilge pump e g on ships or construction sites Filling level monitoring of lubricants Filling level monitoring of dosing containers Filling level monitoring of oil sumps Filling level...

Page 90: ...n for setting the sensor sensitivity R sens Rotary button for setting the tripping delay Delay Device article number Label Status display LED contact symbol yellow Status display LED coil symbol green Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage M GND Reference point Min Minimum level Max Maximum level 12 Output relay K1 CO contact NC contact 11 Output relay K1 C...

Page 91: ...robes and routing the cable make sure that this source of error is precluded For example use stable bow probes if wire electrodes are in danger of being broken Depending on their design the 3UG4501 filling level monitoring relays are powered with a 24 V AC DC or 24 to 240 V AC DC rated control supply voltage through terminals A1 A2 When the rated control supply voltage is applied the green LED nex...

Page 92: ... while the minimum probe and reference probe are immersed the output relay changes its switching state The output relay reverts to its original switching state as soon as the minimum probe is no longer in contact with the liquid One point monitoring For closed loop control of only one level the terminals for Min and Max are bridged on the filling level monitoring relay The output relay changes its...

Page 93: ...2000 RS AC 004 93 Function diagrams 3UG4501 Drainage control OV 1 two point closed loop control Inflow control UN 2 two point closed loop control 1 OV overshoot 2 UN undershoot Drainage control OV 1 one point closed loop control Inflow control UN 2 one point closed loop control 1 OV overshoot 2 UN undershoot ...

Page 94: ... depending on the application one point control or two point control 2 The position digits refer to the front view in Chapter Operator controls and connection terminals Page 90 Chapter Circuit diagrams Page 95 shows the wiring examples for the different monitoring modes The parameters are defined in Chapter Parameters Page 363 Required tools The same screwdriver can be used to set the parameters a...

Page 95: ...ing relays Manual 05 2016 NEB927043002000 RS AC 004 95 5 6 Circuit diagrams Internal circuit diagram 3UG4501 A 30 level monitoring relays Wiring examples Drainage control Two step control One point closed loop control Inflow control Two step control One point closed loop control ...

Page 96: ...ength of the sensor maximum m 100 Type of display LED Yes Product function response sensitivity adjustable Yes outlet monitoring adjustable Yes inlet monitoring adjustable Yes reset external Yes Starting time after the control supply voltage has been applied ms 500 Voltage type of control feed voltage AC DC Control supply voltage at 50 Hz at AC rated value V 24 24 240 at 60 Hz at AC rated value V ...

Page 97: ...0 60 Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Conductor bound parasitic coupling BURST according to IEC 61000 4 4 2 kV Conductor bound parasitic coupling conductor earth SURGE according to IEC 61000 4 5 2 kV Conductor bound parasitic coupling conductor conductor SURGE according to IEC 61000 4 5 1 kV Electrostatic discharge according to IEC 61000 4 2 6 kV c...

Page 98: ...RS AC 004 3UG4501 A 3UG4501 W Galvanic isolation between entrance and outlet Yes Galvanic isolation between the outputs No Mechanical operating cycles as operating time typical 10 000 000 Electrical operating cycles as operating time at AC 15 at 230 V typical 100 000 Operating cycles with 3RT2 contactor maximum 1 h 5 000 ...

Page 99: ...aintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Mounting type screw and snap on mounting Product function remova...

Page 100: ... 2x 0 5 1 5 mm 2 x 0 25 1 5 mm without wire end processing 2x 0 25 1 5 mm for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torque with screw type terminals N m 0 8 1 2 Number of change over switches delayed switching 1 Measuring circuit 3UG4501 Adjustable response delay time when starting s 0 3 10 with lower or upper limit violation s 0 3 10 Adjustable response valu...

Page 101: ... protection for mobile machines and plants or in unstable power systems Using the monitoring relays line and voltage errors can be detected early and minimized Depending on the version the electronic line monitoring relays monitor the following Phase sequence Phase failure with and without neutral conductor monitoring Phase asymmetry Undervoltage and or overvoltage ...

Page 102: ...s and walkways Phase failure A fuse has tripped Control supply voltage failure Cable break Crane systems Electrical welding Emergency generating sets banks hospitals alarm systems power plants Transport of persons elevators moving staircases and walkways Phase asymmetry Motor protection overheating of the motor through asymmetric voltage Detection of asymmetric systems Undervoltage Increased curre...

Page 103: ...er Label Status display LED contact symbol green Terminal labels L1 L2 L3 Rated control supply voltage 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact on the 3UG4511 B only 21 Output relay K2 CO contact root on the 3UG4511 B only 24 Output relay K2 CO contact NC contact on the 3UG4511 B on...

Page 104: ...the absolute thresholds Monitoring If the correct phase sequences are applied to terminals L1 L2 L3 the output relay picks up after the response time and the contact symbol LED lights up green If the phase sequence is incorrect the output relay remains in its quiescent position After the power system has been disconnected the output relays drop out after the response time has expired Note After fa...

Page 105: ... 2 3 Diagnostics 6 2 3 1 Diagnostics with LED Status display The following information about the operating state is displayed on the 3UG4511 line monitoring relay Operating status LED contact symbol green State of the output relay 12 11 14 22 21 24 Correct phase sequence On Incorrect phase sequence Off You will find more information about the switching behavior of the output relays in Chapter Func...

Page 106: ...ircuit diagrams Internal circuit diagrams 3UG4511 3UG4511 A line monitoring relays 3UG4511 B line monitoring relays Note It is not necessary to fuse the measuring circuit to protect the device Fusing for line protection depends on the cross section used Note The 3UG4511 line monitoring relays are only suitable for line frequencies of 50 60 Hz ...

Page 107: ...nition No phase sequence recognition Yes phase disturbance recognition No asymmetry recognition No overvoltage recognition of 3 phases No undervoltage recognition of 3 phases No tension window recognition of 3 phases No reset external self reset Yes open circuit or closed circuit current principle No Starting time after the control supply voltage has been applied s 0 2 Response time maximum s 0 45...

Page 108: ... Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Installation altitude at a height over sea level maximum m 2 000 Conductor bound parasitic coupling BURST according to IEC 61000 4 4 2 kV Conductor bound parasitic coupling conductor earth SURGE according to IEC 61000 4 5 2 kV Conductor bound parasitic coupling conductor conductor SURGE according to IEC 61000 4 5 1...

Page 109: ...ting time typical 10 000 000 Electrical operating cycles as operating time at AC 15 at 230 V typical 100 000 Operating cycles with 3RT2 contactor maximum 1 h 5 000 Mechanical design 3UG4511 1A 3UG4511 1B 3UG4511 2A 3UG4511 2B Width mm 22 5 Height mm 83 92 84 94 Depth mm 91 mounting position any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downw...

Page 110: ...removable terminal for auxiliary and control circuit Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross sections solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm without wire end processing 2x 0 25 1 5 mm for AWG conductors solid 2x 20 14 ...

Page 111: ...LED phase failure phase sequence red Status display LED coil symbol green Terminal labels L1 L2 L3 Rated control supply voltage 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact on the 3UG4512 B only 21 Output relay K2 CO contact root on the 3UG4512 B only 24 Output relay K2 CO contact NC co...

Page 112: ...ay K2 CO contact Output relay K2 switches synchronously with output relay K1 No settings are required for operation Note The specified voltages represent the absolute thresholds Monitoring Thanks to a special measuring method a phase failure is detected with certainty despite wide range voltage from 160 to 690 V AC and reverse power of up to 90 from the load in the case of regenerative power recov...

Page 113: ...t function The autoreset function resets the output relay to its original state after an error message and rectification of the fault that has occurred Note The red phase failure phase sequence LED is a fault diagnostics display and does not indicate the current state of the relay Function diagrams 3UG4512 Phase failure Incorrect phase sequence Red Red Phase failure Phase sequence ...

Page 114: ...e 3UG4512 line monitoring relay Operating state LED State of the output relays Coil symbol green Phase failure phase sequence red 12 11 14 22 21 24 Supply voltage not present Off Off Supply voltage present Correct phase sequence All phases available On Off Supply voltage present Incorrect phase sequence On flashing Supply voltage present Phase failure On On You will find more information about the...

Page 115: ...ircuit diagrams Internal circuit diagrams 3UG4512 3UG4512 A line monitoring relays 3UG4512 B line monitoring relays Note It is not necessary to fuse the measuring circuit to protect the device Fusing for line protection depends on the cross section used Note The 3UG4512 line monitoring relays are only suitable for line frequencies of 50 60 Hz ...

Page 116: ... function Phase monitoring relay Design of the display Type of display LED Yes Product function undervoltage recognition No overvoltage recognition No phase sequence recognition Yes phase disturbance recognition Yes asymmetry recognition No overvoltage recognition of 3 phases No undervoltage recognition of 3 phases No tension window recognition of 3 phases No reset external self reset Yes open cir...

Page 117: ...15 mm 6 500 Hz 2g Shock resistance according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Current carrying capacity of output relay at AC 15 at 250 V at 50 60 Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Installation altitude at a height over sea level maximum m 2 000 Conductor bound parasitic coupling BURST according to IEC 61000 4 4 2 kV Conductor bound ...

Page 118: ...g operating C 25 60 during storage C 40 85 during transport C 40 85 Galvanic isolation between entrance and outlet Yes between the outputs Yes between the voltage supply and other circuits Yes Mechanical operating cycles as operating time typical 10 000 000 Electrical operating cycles as operating time at AC 15 at 230 V typical 100 000 Operating cycles with 3RT2 contactor maximum 1 h 5 000 ...

Page 119: ...on any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting snap on mounting Product...

Page 120: ... spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torque with screw type terminals N m 0 8 1 2 Number of change ov...

Page 121: ...g the tripping delay Delay Device article number Label Function symbol Status display LED phase failure phase sequence red Status display LED coil symbol green Terminal labels L1 L2 L3 Rated control supply voltage 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact 21 Output relay K2 CO contac...

Page 122: ... symbol will light up green If the correct phase sequence is applied to terminals L1 L2 L3 and if the monitored line to line voltage is in the permissible range of the set nominal line voltage Un 3AC the output relays pick up If the phase sequence is incorrect the phase failure phase sequence LED flashes red and the output relays remain in their quiescent position If the monitored line to line vol...

Page 123: ...s to their original state after an error message and rectification of the fault that has occurred Note The red LED is a fault diagnostics display and does not indicate the current state of the relay Function diagrams 3UG4513 Phase failure and undervoltage Incorrect phase sequence LED phase failure phase sequence Red LED phase failure phase sequence Red Phase failure Phase sequence Tripping delay t...

Page 124: ...toring relay Parameters Control element 1 Setting range Increment Minimum value Maximum value Tripping delay time Delay 3 0 1 s 20 s Continuous Nominal line voltage 3 Un 2 200 V 690 V 2 Continuous 1 The position digits refer to the front view in Chapter Operator controls and connection terminals Page 121 2 absolute threshold The parameters are described in Chapter Parameters Page 363 Required tool...

Page 125: ...status LED State of the output relays Coil symbol green Phase failure phase sequence red 12 11 14 22 21 24 Supply voltage not present Off Off Supply voltage present Correct phase sequence All phases available Line to line voltage OK On Off Supply voltage present Incorrect phase sequence On flashing Supply voltage present Phase failure On On Supply voltage present Line to line voltage undershot On ...

Page 126: ...2000 RS AC 004 6 4 5 Circuit diagrams Internal circuit diagrams 3UG4513 line monitoring relay Note It is not necessary to fuse the measuring circuit to protect the device Fusing for line protection depends on the cross section used Note The 3UG4513 line monitoring relays are only suitable for line frequencies of 50 60 Hz ...

Page 127: ...unction Phase monitoring relay Type of display LED Yes Product function undervoltage recognition Yes overvoltage recognition No phase sequence recognition Yes phase disturbance recognition Yes asymmetry recognition Yes overvoltage recognition of 3 phases No undervoltage recognition of 3 phases Yes tension window recognition of 3 phases No reset external self reset Yes open circuit or closed circui...

Page 128: ...nk of the output relay A 4 Resistance against vibration according to IEC 60068 2 6 1 6 Hz 15 mm 6 500 Hz 2g Resistance against shock according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Current carrying capacity of output relay at AC 15 at 250 V at 50 60 Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Installation altitude at a height over sea level maximum...

Page 129: ... with degree of pollution 3 rated value V 690 Degree of pollution 3 Ambient temperature during operating C 25 60 during storage C 40 85 during transport C 40 85 Galvanic isolation between entrance and outlet Yes between the outputs Yes between the voltage supply and other circuits Yes Mechanical operating cycles as operating time typical 10 000 000 Electrical operating cycles as operating time at ...

Page 130: ...ntained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting snap on mounting Product function removable terminal for auxiliary and control circuit Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely strand...

Page 131: ...navigation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels L1 L2 L3 Rated control supply voltage 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact 21 Output relay K2 CO contact root 24 Output relay K2 CO contact...

Page 132: ...ed control supply voltage The 3UG4614 line monitoring relays monitor all phases of three phase AC networks from 160 to 690 V through terminals L1 L2 L3 and also draw power from all three phases simultaneously The 3UG4614 line monitoring relays feature 2 output relays output relay K1 and output relay K2 The relays work synchronously You will find the setting ranges and factory settings of the avail...

Page 133: ...the load in the case of regenerative power recovery On failure of one of the phases the output relays drop out immediately to protect the application from any damage that may result Set delay times have no effect on the phase failure monitoring Note The 3UG4614 line monitoring relays are only suitable for line frequencies of 50 60 Hz Startup delay After applying the supply voltage or resetting the...

Page 134: ...monitoring relay 3UG4 3RR2 monitoring relays 134 Manual 05 2016 NEB927043002000 RS AC 004 Function diagrams 3UG4614 Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle ...

Page 135: ...e Increment Factory setting Minimum value Maximum value RUN Threshold for undershoot U 160 V 690 V 1 V 375 V RUN Threshold for voltage asymmetry Asy 5 or OFF 20 1 5 SET Hysteresis Hyst 1 V 20 V 1 V 5 V SET Stabilization delay onDel 0 1 s 20 s 0 1 s 0 1 s SET Tripping delay time Del on undervoltage or overshoot of the asymmetry value 0 1 s 20 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Ha...

Page 136: ... Measured line to line voltage L1 L2 is displayed L Flashing Phase failure detected Flashing Incorrect phase sequence detected Asym Flashing Voltage asymmetry detected Monitoring for overshoot of the voltage asymmetry Monitoring for voltage undershoot Voltage is in correct range A voltage overshoot has occurred A voltage undershoot has occurred Not flashing Relay contact 11 12 open relay contact 1...

Page 137: ... dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediately Alternatively the devices can be reset by switching the rated control supply voltage on and off 6 5 5 Circuit diagram...

Page 138: ...4614 Product function Phase monitoring relay Type of display LED No Product function undervoltage recognition Yes overvoltage recognition No phase sequence recognition Yes phase disturbance recognition Yes asymmetry recognition Yes overvoltage recognition of 3 phases No undervoltage recognition of 3 phases Yes tension window recognition of 3 phases No reset external self reset Yes open circuit or ...

Page 139: ...15 mm 6 500 Hz 2g Shock resistance according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Current carrying capacity of output relay at AC 15 at 250 V at 50 60 Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Installation altitude at a height over sea level maximum m 2 000 Conductor bound parasitic coupling BURST according to IEC 61000 4 4 2 kV Conductor bound ...

Page 140: ...emperature during operating C 25 60 during storage C 40 85 during transport C 40 85 Galvanic isolation between entrance and outlet Yes Galvanic isolation between the outputs Yes Mechanical operating cycles as operating time typical 10 000 000 Electrical operating cycles as operating time at AC 15 at 230 V typical 100 000 Operating cycles with 3RT2 contactor maximum 1 h 5 000 ...

Page 141: ...ntained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting snap on mounting Product function removable terminal for auxiliary and control circuit Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely strand...

Page 142: ...igation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels L1 L2 L3 Rated control supply voltage N Neutral conductor only on 3UG4616 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact 21 Output relay K2 CO contact r...

Page 143: ...f powered measuring voltage rated control supply voltage Depending on the version the line monitoring relays are powered with a line to line voltage of 160 to 690 V 3UG4615 or with a line to neutral voltage of 90 to 400 V 3UG4616 through terminals L1 L2 L3 The 3UG4615 3UG4616 line monitoring relays feature 2 output relays output relay K1 and output relay K2 The 3UG4615 3UG4616 line monitoring rela...

Page 144: ...U Del In the case of incorrect direction of rotation the devices immediately shut down The display indicates the following voltages in the case of the line monitoring relays 3UG4615 Line to line voltage between L1 and L2 L1 and L3 L2 and L3 3UG4616 Line to neutral voltage between L1 and N L2 and N L3 and N Thanks to a special measuring method a phase failure is detected with certainty despite wide...

Page 145: ...monitoring relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 145 Function diagrams 3UG4615 3UG4616 Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle ...

Page 146: ...setting Minimum value Maximum value RUN Threshold for undershoot U 160 V1 90 V2 690 V1 400 V2 1 V 375 V1 215 V2 RUN Threshold for overshoot U 160 V1 90 V2 690 V1 400 V2 1 V 425 V1 245 V2 SET Hysteresis Hyst 1 0 V 20 0 V 1 V 5 0 V SET Tripping delay time U Del 0 1 s 20 0 s 0 1 s 0 1 s SET Tripping delay time U Del 0 1 s 20 0 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Hand RESET no Autore...

Page 147: ...R2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 147 6 6 4 Diagnostics 6 6 4 1 Indications on the display Display information The display is divided into three different areas Voltage measured value or fault symbol Type of monitoring Symbols of the changeover contacts ...

Page 148: ...hoot Voltage is in correct range A voltage overshoot has occurred A voltage undershoot has occurred U Not flashing Relay contact 11 12 open relay contact 11 14 closed Flashing Delay time tripping delay is running Masked out Relay contact 11 12 closed relay contact 11 14 open U Not flashing Relay contact 21 22 open relay contact 21 24 closed Flashing Delay time tripping delay is running Masked out ...

Page 149: ...elected Automatic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immedia...

Page 150: ... Manual 05 2016 NEB927043002000 RS AC 004 6 6 5 Circuit diagrams Internal circuit diagrams 3UG4615 3UG4616 3UG4615 line monitoring relay 3UG4616 line monitoring relay Note It is not necessary to fuse the measuring circuit to protect the device Fusing for line protection depends on the cross section used ...

Page 151: ...function Phase monitoring relay Design of the display LCD Type of display LED No Product function undervoltage recognition Yes overvoltage recognition Yes phase sequence recognition Yes phase disturbance recognition Yes asymmetry recognition Yes overvoltage recognition of 3 phases Yes undervoltage recognition of 3 phases Yes tension window recognition of 3 phases Yes reset external self reset Yes ...

Page 152: ...Resistance against vibration according to IEC 60068 2 6 1 6 Hz 15 mm 6 500 Hz 2g Resistance against shock according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Current carrying capacity of output relay at AC 15 at 250 V at 50 60 Hz A 3 at 400 V at 50 60 Hz A 3 at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Installation altitude at a height over sea level maximum m 2 000 Conductor bound pa...

Page 153: ...3 rated value V 690 Degree of pollution 3 Ambient temperature during operating C 25 60 during storage C 40 85 during transport C 40 85 Galvanic isolation between entrance and outlet Yes between the outputs Yes between the voltage supply and other circuits Yes Mechanical operating cycles as operating time typical 10 000 000 Electrical operating cycles as operating time at AC 15 at 230 V typical 100...

Page 154: ... 5 Height mm 92 102 94 103 Depth mm 91 Built in orientation any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0...

Page 155: ...Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torq...

Page 156: ...ation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels L1 L2 L3 Rated control supply voltage N Neutral conductor on 3UG4618 only 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact 21 Output relay K2 CO contact roo...

Page 157: ...a wide range voltage input and are self powered measuring voltage rated control supply voltage and work on the closed circuit principle Depending on the version the line monitoring relays are powered with a line to line voltage of 160 to 690 V 3UG4617 and with a line to neutral voltage of 90 to 400 V 3UG4618 through terminals L1 L2 L3 The 3UG4617 3UG4618 line monitoring relays have a display and a...

Page 158: ...he line voltage asymmetry Asy is less than the set value the output relay K1 relay contact 11 12 14 picks up approx 50 ms after the response of output relay K2 relay contact 21 22 24 The display indicates the following voltages in the case of the line monitoring relays 3UG4617 Line to line voltage between L1 and L2 L1 and L3 L2 and L3 3UG4618 Line to neutral voltage between L1 and N L2 and N L3 an...

Page 159: ...4618 line monitoring relays only evaluate the phase sequence while all 3 phases are present For safety reasons the phase sequence is not reevaluated after 2 phase operation or a phase failure after which the third phase has appeared In this case the output relay for the phase rotation remains in its last switching state The phase sequence is not reevaluated until after the device has been reset or...

Page 160: ...G4617 3UG4618 line monitoring relays 3UG4 3RR2 monitoring relays 160 Manual 05 2016 NEB927043002000 RS AC 004 Function diagrams 3UG4617 3UG4618 Display Correct phase sequence L1 L2 L3 Memory no Incorrect phase sequence L3 L2 L1 Memory no ...

Page 161: ...tal setting Menu level Parameters Setting range Increment Factory setting Minimum value Maximum value RUN Threshold for voltage undershoot U 160 V1 90 V2 690 V1 400 V2 1 V 375 V1 215 V2 RUN Threshold for voltage overshoot U 160 V1 90 V2 690 V1 400 V2 1 V 425 V1 245 V2 RUN Voltage asymmetry Asy 5 or OFF 20 1 OFF SET Hysteresis Hyst 1 V 20 0 V 1 V 5 V SET Tripping delay time Del 0 1 s 20 0 s 0 1 s 0...

Page 162: ...R2 monitoring relays 162 Manual 05 2016 NEB927043002000 RS AC 004 6 7 4 Diagnostics 6 7 4 1 Indications on the display Display information The display is divided into three different areas Voltage measured value or fault symbol Type of monitoring Symbols of the changeover contacts ...

Page 163: ...for voltage overshoot Monitoring for voltage undershoot Range monitoring monitoring for voltage overshoot and undershoot Voltage is in correct range A voltage overshoot has occurred A voltage undershoot has occurred Error Not flashing Relay contact 11 12 open relay contact 11 14 closed Flashing Delay time tripping delay is running Masked out Relay contact 11 12 closed relay contact 11 14 open Not ...

Page 164: ...elected Automatic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immedia...

Page 165: ...27043002000 RS AC 004 165 6 7 5 Circuit diagrams 6 7 5 1 Internal circuit diagrams Internal circuit diagram 3UG4617 3UG4618 3UG4617 line monitoring relay 3UG4618 line monitoring relay Note It is not necessary to fuse the measuring circuit to protect the device Fusing for line protection depends on the cross section used ...

Page 166: ...relay 6 7 3UG4617 3UG4618 line monitoring relays 3UG4 3RR2 monitoring relays 166 Manual 05 2016 NEB927043002000 RS AC 004 6 7 5 2 Wiring examples Automatic phase correction Image 6 2 3UG4617 3UG4618 automatic phase correction ...

Page 167: ...ponse delay time with lower or upper limit violation s 0 1 20 General technical details 3UG4617 3UG4618 Product function Phase monitoring relay Design of the display LCD Type of display LED No Product function undervoltage recognition Yes overvoltage recognition Yes phase sequence recognition Yes phase disturbance recognition Yes asymmetry recognition Yes overvoltage recognition of 3 phases Yes un...

Page 168: ...0 Hz at AC rated value V 160 690 Working range factor supply voltage rated value at 50 Hz for AC 1 at 60 Hz for AC 1 Impulse voltage resistance rated value kV 6 Recorded real power W 2 Protection class IP IP20 Electromagnetic compatibility IEC 60947 1 IEC 61000 6 2 IEC 61000 6 4 Operating current at 17 V minimum mA 5 Continuous current of the DIAZED fuse link of the output relay A 4 Resistance aga...

Page 169: ... 6 kV contact discharge 8 kV air discharge Field bound parasitic coupling according to IEC 61000 4 3 10 V m Thermal current of the contact affected switching element maximum A 5 Insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 690 Degree of pollution 3 Ambient temperature during operating C 25 60 during storage C 40 85 during transport...

Page 170: ... 5 Height mm 92 102 94 103 Depth mm 91 Built in orientation any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0...

Page 171: ...Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torq...

Page 172: ...3UG4 1 line monitoring relay 6 7 3UG4617 3UG4618 line monitoring relays 3UG4 3RR2 monitoring relays 172 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 173: ...he current monitoring relays Function Application Undercurrent monitoring and overcurrent monitoring Monitoring the functionality of electrical loads Wire break monitoring Threshold switch for analog signals from 4 to 20 mA Emergency lighting failure of a lamp drop in current strength in the system Heating systems electroplating plants plastic injection machines paintshops Lamps tunnels OP lightin...

Page 174: ...SET key for menu navigation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage M GND Measuring signal input IN Measuring signal input 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact You can...

Page 175: ...ettings of the available parameters in Chapter Operation Page 179 You will find a description of the individual parameters in Chapter Parameters Page 363 Monitoring If the rated control supply voltage is switched on and no load current is as yet flowing the display indicates 0 0 mA on the 3UG4621 or 0 00 A on the 3UG4622 and shows a symbol for current overshoot monitoring current undershoot monito...

Page 176: ...3UG4621 or NC I 50 mA 3UG4622 is appropriate When the supply voltage is applied the output relay K1 is switched to the operate condition and the ON delay time onDel is started If current is not yet flowing normally after this time has elapsed the output relay will switch back to the fault condition If a motor is not to be started directly using the monitoring relay but in parallel using a pushbutt...

Page 177: ...2000 RS AC 004 177 Function diagrams from application of the rated control supply voltage US on Display Memory no Relay switching behavior NC closed circuit principle US on Memory no Relay switching behavior NO open circuit principle US on J Currently measured current value I set threshold value for the current ...

Page 178: ...Function diagrams on reaching the lower measuring range limit of the measuring current I 3 mA 50 mA Display Memory no Relay switching behavior NC closed circuit principle I 3 mA 50 mA Memory no Relay switching behavior NO open circuit principle I 3 mA 50 mA J Currently measured current value I set threshold value for the current ...

Page 179: ... A2 SET Hysteresis Hyst 0 1 mA1 0 01 A2 250 0 mA1 5 0 A2 0 1 mA1 0 01 A2 10 0 mA1 0 5 A2 SET ON delay time onDel 0 1 s 20 s 0 1 s 0 1 s SET Tripping delay time 0 1 s 20 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Hand RESET no Autoreset SET Relay switching behavior closed circuit principle NC open circuit principle NO NC Us on or NO I 3 mA1 NC Us on or NO I 50 mA2 NC Us on 1 3UG4621 curr...

Page 180: ...ng statuses and faults are indicated on the display as a diagnostics message with flashing symbols Display areas Symbol Meaning 5 0A Displays the measured current Monitoring for current overshoot Monitoring for current undershoot Range monitoring monitoring for current overshoot and current undershoot Current is in correct range A current overshoot has occurred A current undershoot has occurred No...

Page 181: ...Automatic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediately Alt...

Page 182: ... monitoring relays Note On the 24 V AC DC version of the 3UG4621 22 AA30 terminals A2 and M GND are electrically connected in the device The load current must flow through terminal M GND On the 24 to 240 V AC DC versions of the 3UG4621 22 AW30 terminals A2 and M GND are electrically separated 7 6 2 Wiring examples 3UG46 AW30 Single phase operation Three phase operation 3UG462 AW30 single phase ope...

Page 183: ...lant Operation with a separate control circuit and load current circuit single phase three phase Operation with a common control circuit and load current circuit single phase Note Configuration In the case of 3UG462 AA30 A2 and M GND are internally electrically connected If the load to be monitored and the current monitoring relay are powered from the same system terminal A2 is not required The lo...

Page 184: ... A 0 003 0 6 0 05 15 Measurable current for AC A 0 003 0 6 0 05 15 Measurable line frequency Hz 40 500 Internal resistance of the measuring circuit Ω 0 5 0 005 Adjustable response current 1 A 0 003 0 5 0 5 10 2 A 0 003 0 5 0 5 10 Adjustable response delay time when starting s 0 1 20 with lower or upper limit violation s 0 1 20 Adjustable switching hysteresis for measured current value mA 0 1 250 1...

Page 185: ...1 phase Yes undercurrent recognition of 3 phases No overcurrent recognition DC Yes undercurrent recognition DC Yes current window recognition DC Yes tension window recognition of 1 phase No tension window recognition of 3 phases No reset external Yes self reset Yes open circuit or closed circuit current principle Yes Starting time after the control supply voltage has been applied s 1 Response time...

Page 186: ...resistance rated value kV 4 Recorded real power W 2 Protection class IP IP20 Electromagnetic compatibility IEC 60947 1 IEC 61000 6 2 IEC 61000 6 4 Operating current at 17 V minimum mA 5 Continuous current of the DIAZED fuse link of the output relay A 4 Resistance against vibration according to IEC 60068 2 6 1 6 Hz 15 mm 6 500 Hz 2g Resistance against shock according to IEC 60068 2 27 sinusoidal ha...

Page 187: ...ing according to IEC 61000 4 3 10 V m Thermal current of the contact affected switching element maximum A 5 Insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 690 Maximum permissible voltage for safe disconnection between control and auxiliary circuit V 300 between auxiliary circuit and auxiliary circuit V 300 Degree of pollution 3 Ambie...

Page 188: ...5 Height mm 92 94 Depth mm 91 Built in orientation any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downward...

Page 189: ...w type terminals spring loaded terminals Product function removable terminal for auxiliary and control circuit Yes removable terminal for main circuit Yes Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conduct...

Page 190: ...3UG4621 3UG4622 current monitoring relays 7 7 Technical data 3UG4 3RR2 monitoring relays 190 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 191: ... where environmental conditions increase the chance of higher fault currents The devices are used for applications including in the following areas Table 8 1 Application areas of 3UG4625 residual current monitoring relays Cause of fault Application Dust deposits on terminals Woodworking grain mills Increased levels of humidity Mining power supply containers Capacitive fault currents as basic fault...

Page 192: ... menu Display for parameterization actual value indication and diagnostics Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage C1 Connection for 3UL23 residual current transformer C2 12 Output relay K1 CO contact NC contact alarm output 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact warning output 21 ...

Page 193: ...nd if present the neutral conductor to which the load is connected are routed through the opening of the ring core of a 3UL23 residual current transformer There is a secondary winding around this ring core to which the 3UG4625 residual current monitoring relay is connected In fault free operation of a system the sum of inflowing and outflowing currents equals zero No current is then induced in the...

Page 194: ...ppage The switching response of the relay outputs can be set to open circuit principle NO if you intend to continue plant operation even if the monitoring function fails This means only actively determined fault currents are reported via the relay outputs Permanent self monitoring The permanent self monitoring feature of 3UG4625 ensures reliable system monitoring The connected 3UL23 residual curre...

Page 195: ...ual cables increasingly cause what appear to be fault currents that are detected by the evaluation units An increased false tripping may occur if excessively low monitoring limit values have been set at high primary currents Such tolerances also mean that the measuring accuracy no longer corresponds to the range of between 7 5 7 5 To avoid these types of measuring errors and false tripping we reco...

Page 196: ...zed phase control deviations from the measuring accuracy can occur when monitoring for high residual current limits The cause of this is the extreme difference between the monitored rms values and the peak values of the residual current The more extreme the generalized phase control the shorter the time during which current flows and the lower the resulting rms value To achieve and monitor a high ...

Page 197: ...After completion of the initialization phase a permanent self test takes place without interrupting the monitoring function Normal operation If the measured fault current exceeds the set warning threshold I the associated CO contact 21 22 24 changes the switching state without delay On the display the arrows for threshold overshot and measured value within the set limits flash alternately as an in...

Page 198: ...d Tripping 100 of the set threshold 3UL23 residual current transformer 3UL23 residual current transformers can be used in conjunction with 3UG4625 residual current monitoring relays to detect fault currents in machines and systems 3UL23 residual current transformers are suitable for detecting pure AC fault currents and AC fault currents with a pulsating direct current component These necessary acc...

Page 199: ...llowing diagrams the term Hyst refers to the Hysteresis parameter The Hysteresis parameter refers to the monitored limit values I and can be set in the SET menu However Hyst 5 refers to the warning thresholds I and is permanently set to 5 Display Memory no Init ERR Relay switching behavior NO open circuit principle I I Mem no Init ERR Display Memory no Init ERR Relay switching behavior NC closed c...

Page 200: ...6 NEB927043002000 RS AC 004 Display Memory yes Init ERR Relay switching behavior NO open circuit principle I I Mem yes Init ERR Display Memory yes Init ERR Relay switching behavior NC closed circuit principle I I Mem yes Init ERR Display Memory no Init OK Relay switching behavior NO open circuit principle I I Mem no Init OK ...

Page 201: ...ching behavior NC closed circuit principle I I Mem no Init OK Display Memory yes Init OK Relay switching behavior NO open circuit principle I I Mem yes Init OK Display Memory yes Init OK Relay switching behavior NC closed circuit principle I I Mem yes Init OK Note The system is immediately switched off in the event of an open circuit or short circuit in the transformer connection cables ...

Page 202: ...A RUN Warning threshold for overshoot I 0 03 A or OFF 40 0 A Depending on the value 0 01 A or 0 1 A 0 5 A SET Hysteresis Hyst OFF 0 50 5 5 SET Initialization Init ERR OK ERR SET ON delay time onDel 0 1 s or OFF 20 0 s 0 1 s OFF SET Tripping delay time I Del 0 1 s or OFF 20 0 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Hand RESET no Autoreset SET Relay switching behavior closed circuit pr...

Page 203: ...UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 203 8 5 Diagnostics 8 5 1 Indications on the display Display information The display is divided into three different areas Current measured value or fault symbol Type of monitoring Symbols of the changeover contacts ...

Page 204: ...e display Monitoring for current overshoot Current is in correct range Flashing alternately The warning threshold has been exceeded Flashing A current overshoot has occurred I Not flashing Relay contact 11 12 open relay contact 11 14 closed Flashing Delay time ON delay or tripping delay running Masked out Relay contact 11 12 closed relay contact 11 14 open I Not flashing Relay contact 21 22 open r...

Page 205: ...emory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediately Alternatively the de...

Page 206: ...itoring relay 24 to 240 V Note 3UG4625 residual current monitoring relays are suitable for operation with 3UL23 residual current transformers for external ground fault monitoring The output signal of the 3UL23 residual current transformer is connected to terminals C1 and C2 of the monitoring relay To avoid interference injection which could result in incorrect measurements these connecting lines m...

Page 207: ...nitoring relay with 3UL23 transformer 8 6 Circuit diagrams 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 207 8 6 2 Wiring examples Cable shielding recommended Image 8 1 Wiring diagram of 3UG4625 with 3UL23 ...

Page 208: ... 50 Stored energy time at mains power cut minimum ms 10 Operating voltage rated value V 24 240 General technical details 3UG4625 Product function for three phase supplies Design of the display LCD Product function difference current indication Yes defect storage Yes overcurrent recognition of 1 phase Yes undercurrent recognition of 1 phase No reset external Yes open circuit or closed circuit curre...

Page 209: ... 6 2 IEC 61000 6 4 Operating current at 17 V minimum mA 5 Continuous current of the DIAZED fuse link of the output relay A 4 Resistance against vibration according to IEC 60068 2 6 1 6 Hz 15 mm 6 500 Hz 2g Resistance against shock according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Installation altitude at a height over sea level maximum m 2 000 Current carrying capacity of output relay at ...

Page 210: ...sulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 300 Degree of pollution 3 Ambient temperature during operating C 25 60 during storage C 40 85 during transport C 40 85 Design of the electrical isolation galvanic Galvanic isolation between entrance and outlet Yes between the outputs Yes between the voltage supply and other circuits No Mec...

Page 211: ...onductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting screw and snap on mounting onto 35 mm standard mounting rail Product function removable terminal for auxiliary and control circuit Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm 2x 0 5 2 5...

Page 212: ...3UG4625 residual current monitoring relay with 3UL23 transformer 8 7 Technical data 3UG4 3RR2 monitoring relays 212 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 213: ...690 V AC and Un 1000 V DC by using an upstream module Ungrounded insulated systems IT networks are always used when high requirements are placed on the reliability of the power supply e g emergency lighting IT systems are supplied via an isolation transformer or voltage sources such as batteries or a generator An insulation fault that occurs between an external conductor and ground represents a gr...

Page 214: ...e version Open circuit Incorrect settings Ungrounded strictly AC systems for insulation faults Ungrounded strictly DC systems for insulation faults Ungrounded mixed DC systems and AC systems for insulation faults e g AC systems with rectifiers or switched mode power supplies Note The use of two 3UG458 devices in a galvanically connected area monitored area is not permissible Monitored area ...

Page 215: ...plants Mining industry Note The 3UG4582 and 3UG4583 insulation monitors are only suitable for use in systems with frequency converters primary or secondary side if operation with generated frequencies 15Hz and 400Hz is ruled out The 3UG4581 version is not suitable for operation with a frequency converter Table 9 2 Functions of the 3UG4581 3UG4582 3UG4583 insulation monitoring relays Function Insul...

Page 216: ...elays 3UG4581 3UG4582 3UG4583 Setting range of the target pick up values 1 to 100 kΩ 2 to 200 kΩ Rated voltage of the system to be monitored 0 250 V AC 0 400 V AC 0 600 V AC 1 0 to 300 V DC 0 to 600 V DC 0 to 1000 V DC 1 Maximum discharge capacity of the system 10 μF 20 μF Output contacts 1 changeover contact 2 changeover contacts or 1 changeover contact 1 changeover contact adjustable Number of t...

Page 217: ...ata Insulation monitoring relays 3UG4581 3UG4582 3UG4583 Rated control and supply voltage 24 240 V AC DC Rated frequency 15 400 Hz 50 60 Hz Autoreset or manual RESET 2 2 2 Remote RESET via control input via control input via control input Retentive fault memory 2 Open circuit detection 2 Function available Function not available 1 With 3UG4983 1A upstream module 2 Configurable ...

Page 218: ...evice article number Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage Y1 Control inputs isolation control Y1 Y3 Remote test Y2 Y3 Remote reset autoreset Y2 Y3 L Measuring signal input connection to phase or N conductor Measuring signal input ground connection 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO ...

Page 219: ...s for adjusting the insulation resistance R and a test RESET button for performing an internal test on the device or for resetting the device If the measured value drops below the set threshold the output relays are set to fault status For systems with voltages over 400 V AC the 3UG4583 insulation monitoring relays with 3UG4983 upstream module can be used for system voltages to 690 V AC You will f...

Page 220: ...ystem diagnostics with calculation of the first measured value of the insulation resistance If there are no internal device faults or external faults on completion of this test output relay K1 picks up This test can take several seconds depending on individual system properties If the measured value undershoots the set threshold output relay K1 drops out If the measured value overshoots the thresh...

Page 221: ...s remains dropped out if manual RESET is active and it only picks up again after actuation of the combined test reset button or following activation of remote reset terminals Y2 Y3 if the insulation resistance is greater than the set threshold including hysteresis Another method of resetting the device is by switching the supply voltage off and on again provided the fault is not stored in retentiv...

Page 222: ...ys 222 Manual 05 2016 NEB927043002000 RS AC 004 Function diagrams 3UG4581 Relay switching behavior NC closed circuit principle Without fault storage autoreset Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 223: ...nitoring relays Manual 05 2016 NEB927043002000 RS AC 004 223 Relay switching behavior NC closed circuit principle With fault storage manual RESET Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 224: ...nts Reset response 2 Deactivated Activated 1 The position digits refer to the front view in Chapter Operator controls and connection terminals Page 218 2 By operating the rotary button the tens position of the threshold for undershoot can be selected 3 By operating the rotary button the units position of the threshold for undershoot can be selected The threshold is derived from the sum of the two ...

Page 225: ...h an internal test that checks the proper functioning of the operational device The output relays do not pick up or they switch to the fault status while the Test Reset button is pressed while control contact Y1 Y3 is closed or while the test functions execute after application of the supply voltage The test function can be started again at any time via the Test Reset button on the front or via a ...

Page 226: ...d LED yellow Self test after US on Off Off No fault Off Insulation fault threshold undershot Off System leakage capacitance too high at device startup Off Measuring result invalid Off Internal fault Off Off Test function active Off Off Manual RESET possible1 2 1 The device has tripped following an insulation fault The fault has been stored and the insulation resistance has reverted to a value abov...

Page 227: ...9 3 3UG4581 insulation monitoring relay 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 227 9 3 5 Circuit diagrams 9 3 5 1 Internal circuit diagrams Internal circuit diagram 3UG4581 1AW30 insulation monitoring relay ...

Page 228: ...oring relays 228 Manual 05 2016 NEB927043002000 RS AC 004 Wiring examples 3UG4581 insulation monitoring relays Measuring input L can be connected to any conductor phase or N conductor The rated system voltage must be Un 400 V AC 50 to 60 Hz 2 wire AC system 3 wire AC system 4 wire AC system ...

Page 229: ...ng for ground fault insulation fault in the case of an ungrounded 2 wire IT AC system The voltage source is the secondary side of an isolating transformer that galvanically isolates the system and the downstream circuit Loads Image 9 2 Monitoring for ground fault insulation fault in the case of an ungrounded 2 wire IT AC system Note The maximum cable length of the control cables is 50 m or 100 pF ...

Page 230: ...ground fault insulation fault in the case of an ungrounded 4 wire IT AC system The voltage source is the secondary side of an isolating transformer that galvanically isolates the system and the downstream circuit Image 9 3 Monitoring for ground fault insulation fault in the case of an ungrounded 4 wire IT AC system Note The maximum cable length of the control cables is 50 m or 100 pF m ...

Page 231: ...ng relays Manual 05 2016 NEB927043002000 RS AC 004 231 9 3 6 Characteristics Characteristic curves of the 3UG4581 insulation monitoring relays The characteristics below show the load limit curves of the 3UG4581 insulation monitoring relays Image 9 4 AC load resistive Image 9 5 DC load resistive ...

Page 232: ...insulation monitoring relay 3UG4 3RR2 monitoring relays 232 Manual 05 2016 NEB927043002000 RS AC 004 Image 9 6 Reduction factor F in the case of inductive AC load Operating cycles 250 V resistive load Switching current Image 9 7 Contact service life ...

Page 233: ...led supply voltage AC DC Operating frequency rated value Hz 15 400 Control supply voltage for DC rated value V 24 240 at 50 Hz at AC rated value V 24 240 at 60 Hz at AC rated value V 24 240 Operating range factor control supply voltage rated value for DC 0 85 1 1 Working range factor supply voltage rated value at 50 Hz for AC 0 85 1 1 Working range factor supply voltage rated value at 60 Hz for AC...

Page 234: ...e maintained to earthed part forwards mm 0 backwards mm 0 sidewards nm 0 upwards mm 0 downwards mm 0 Type of mounting snap on fastening on 35 mm standard rail Product function removable terminal for auxiliary and control circuit No Design of the electrical connection screw type terminals Conductor cross section that can be connected solid mm 0 75 2 5 Conductor cross section that can be connected f...

Page 235: ... colored yellow 1 Device article number Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage Y1 Control inputs isolation control Y1 Y3 Remote test Y2 Y3 Remote reset autoreset Y2 Y3 L Measuring signal input connection to phase or L L Measuring signal input connection to phase N conductor or L KE Measuring signal input control ground connection for open circuit monitoring...

Page 236: ...he insulation resistance R1 2 for the units position of R1 Test RESET button Rotary button for adjusting the insulation resistance R1 1 for the tens position of R1 Setting value 0 is colored yellow 1 Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage Y1 Control inputs isolation control Y1 Y3 Remote test Y2 Y3 Remote reset autoreset Y2 Y3 VS Connection terminals for the...

Page 237: ...tion on setting accuracy at setting value 0 a setting accuracy of 15 applies for R at setting value 1 a setting accuracy of 6 applies for R You can find additional information on the connection terminals and the permissible conductor cross sections in the Chapter Technical data Page 265 You can find information on connecting in the Chapter Circuit diagrams Page 255 ...

Page 238: ...ured value drops below the set threshold the output relays are set to fault status For systems with voltages over 400 V AC and 600 V DC the 3UG4583 insulation monitoring relays with 3UG4983 upstream module can be used for extending the voltage range You will find the setting ranges and factory settings of the available parameters in Chapter Operator control Page 249 You will find a description of ...

Page 239: ...nternal test of the device at hardware and firmware level on the 3UG4583 a settings check is also carried out as well as system diagnostics with calculation of the system discharge capacity of the first measured value of the insulation resistance If there are no internal device faults or external faults on completion of this test the output relays change their switching state if closed circuit pri...

Page 240: ... operating states of the 3UG4582 3UG4583 insulation monitoring relays are displayed via three LEDs Additional monitoring functions The 3UG4582 3UG4583 insulation monitoring relays also have two further functions The devices monitor the terminals and KE cyclically for open circuit If an open circuit is detected on one of the connected conductors output relay K1 switches to the fault state on the 3U...

Page 241: ...relays remains dropped out if manual RESET is active and it only picks up again after actuation of the combined test reset button or following activation of remote reset terminals Y2 Y3 if the insulation resistance is greater than the set threshold including hysteresis Another method of resetting the device is by switching the supply voltage off and on again provided the fault is not stored in ret...

Page 242: ... ON 1 On the front Test Reset button 2 Remote reset remote button with NC function 3 A1 A2 switching the supply voltage off on 1 On the front Test Reset button 2 Remote reset remote button with NC function 1 On the front Test Reset button 2 A1 A2 switching the supply voltage off on 1 On the front Test Reset button 1 Autoreset factory setting 1 1 If there is no external connection between terminals...

Page 243: ...l 05 2016 NEB927043002000 RS AC 004 243 9 4 2 1 Function diagrams 3UG4582 function diagrams Relay switching behavior NC closed circuit principle Without fault storage autoreset Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 244: ...R2 monitoring relays 244 Manual 05 2016 NEB927043002000 RS AC 004 Relay switching behavior NC closed circuit principle With fault storage manual RESET Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 245: ...2016 NEB927043002000 RS AC 004 245 3UG4583 function diagrams Relay switching behavior NC closed circuit principle With fault storage manual RESET 1 x 2 changeover contacts shutdown Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 246: ...ays 246 Manual 05 2016 NEB927043002000 RS AC 004 Relay switching behavior NO open circuit principle With fault storage manual RESET 1 x 2 changeover contacts shutdown Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Threshold Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 247: ... 05 2016 NEB927043002000 RS AC 004 247 Relay switching behavior NC closed circuit principle With fault storage manual RESET 2 x 1 changeover contacts warning and shutdown Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Warning Shutdown Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 248: ...anual 05 2016 NEB927043002000 RS AC 004 Relay switching behavior NO open circuit principle With fault storage manual RESET 2 x 1 changeover contacts warning and shutdown Test Y1 Y3 Reset Y2 Y3 Measured value Hysteresis Warning Shutdown Green Red Yellow tS Time for internal device test after applying the supply voltage ...

Page 249: ...ements Test Reset 2 3UG4582 10 3UG4583 Deactivated Activated 1 The position digits refer to the front view of the respective 3UG4582 3UG4583 devices in Chapter Operator controls and connection terminals Page 235 2 3UG4582 By operating the rotary button the tens position of the threshold for undershoot R 1 can be selected 3 3UG4582 By operating the rotary button the units position of the threshold ...

Page 250: ...IP switch The tables below contain the setting options on the device and the explanations for the relevant switch positions When the device is delivered the switch is in the position OFF Table 9 6 DIP switch 3UG4583 Position 4 Functional principle 3 Open circuit detection 2 Non volatile retentive fault storage 1 Functional principle of output relays K1 and K2 ON 2 x 1 changeover contacts Activated...

Page 251: ...n the fault state even after a failure or active shutdown of the supply voltage until the device is reset using the Test Reset button or a remote reset is carried out jumpering of terminals Y2 Y3 Non volatile fault storage deactivated If the function is deactivated output relays K1 and K2 switch back to the good state following failure or active shutdown of the supply voltage if there is no longer...

Page 252: ...rough an internal test that checks the proper functioning of the operational device The output relays do not pick up or they switch to the fault status while the Test Reset button is pressed while control contact Y1 Y3 is closed or while the test functions execute after application of the supply voltage The test function can be started again at any time via the Test Reset button on the front or vi...

Page 253: ...n the 3UG4582 On the 3UG4583 Dependent on the configuration Pre warning1 Insulation fault threshold undershot On the 3UG4582 Off On the 3UG4583 Dependent on the configuration PE KE open circuit On the 3UG4582 Off On the 3UG4583 Dependent on the configuration L L open circuit at system start1 Test function1 Dependent on the configuration System discharge capacity too high measured result invalid On...

Page 254: ...ESET possible3 4 1 Only on the 3UG4583 1CW30 2 Possible setting error The threshold for shutdown is set to a higher value than the warning threshold and non volatile retentive fault storage is set simultaneously with autoreset 3 The device has tripped following an insulation fault The fault has been stored and the insulation resistance has reverted to a value above the set threshold including hyst...

Page 255: ...g relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 255 9 4 5 Circuit diagrams 9 4 5 1 Internal circuit diagrams Internal circuit diagrams 3UG4582 1AW30 3UG4583 1CW30 3UG4582 1AW30 insulation monitoring relay 3UG4583 1CW30 insulation monitoring relay ...

Page 256: ...ion monitoring relays Measuring inputs L and L can be connected to any conductor phase or N conductor Measuring inputs L and L must always be connected to different conductors The rated system voltage is Un 250 V AC 15 to 400 Hz or Un 300 V DC 2 wire AC system 2 wire DC system 2 wire AC system 2 wire DC system 3 wire AC system 3 wire DC system 3 wire AC system 3 wire DC system 4 wire AC system 4 w...

Page 257: ...cally isolates the system and the downstream circuit The insulation resistance of this motor feeder is always monitored when the motor is switched off If the motor contactor drops out the two NC contacts connect the measuring circuit with the motor cables The 3UG4582 1AW30 insulation monitoring relay permanently monitors the insulation resistance of the remaining system with all connected loads Lo...

Page 258: ...connected to any conductor phase or N conductor Measuring inputs L and L must always be connected to different conductors The rated system voltage is Un 400 V AC 15 to 400 Hz or Un 600 V DC The 3UG4983 1A upstream module must be used to monitor systems with higher voltages 2 wire AC system 2 wire DC system 2 wire AC system 2 wire DC system 3 wire AC system 3 wire DC system 3 wire AC system 3 wire ...

Page 259: ...3002000 RS AC 004 259 Application examples The figure below shows monitoring for ground fault insulation fault in the case of an ungrounded 4 wire AC system Loads Image 9 10 Monitoring for ground fault insulation fault in the case of an ungrounded 4 wire AC system Note The maximum cable length of the control cables is 50 m or 100 pF m ...

Page 260: ...ulation resistance of this motor feeder is always monitored when the motor is switched off If the motor contactor drops out the two NC contacts connect the measuring circuit with the motor cables The 3UG4583 1CW30 insulation monitoring relay permanently monitors the insulation resistance of the remaining system with all connected loads Loads Image 9 11 Monitoring for ground fault insulation fault ...

Page 261: ...nitoring relays Manual 05 2016 NEB927043002000 RS AC 004 261 9 4 6 Characteristics Characteristics of the 3UG4582 insulation monitoring relays The characteristics below show the load limit curves of the 3UG4582 insulation monitoring relays Image 9 12 AC load resistive Image 9 13 DC load resistive ...

Page 262: ...3 insulation monitoring relays 3UG4 3RR2 monitoring relays 262 Manual 05 2016 NEB927043002000 RS AC 004 Image 9 14 Reduction factor F in the case of inductive AC load Operating cycles 250 V resistive load Switching current Image 9 15 Contact service life ...

Page 263: ...UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 263 Characteristics of the 3UG4583 insulation monitoring relays The characteristics below show the load limit curves of the 3UG4583 insulation monitoring relays Image 9 16 AC load resistive Image 9 17 DC load resistive ...

Page 264: ...3 insulation monitoring relays 3UG4 3RR2 monitoring relays 264 Manual 05 2016 NEB927043002000 RS AC 004 Image 9 18 Reduction factor F in the case of inductive AC load Operating cycles 250 V resistive load Switching current Image 9 19 Contact service life ...

Page 265: ... AC DC Measurable line frequency Hz 50 60 Network leakage resistance µF 10 Adjustable response value impedance 1 kΩ 1 100 General technical details 3UG4582 1AW30 Product function insulation monitor isolation control Yes defect storage Yes Type of voltage of the controlled supply voltage AC DC Operating frequency rated value Hz 15 400 Control supply voltage for DC rated value V 24 240 at 50 Hz at A...

Page 266: ...upply voltage rated value for DC 0 85 1 1 at 50 Hz for AC 0 85 1 1 at 60 Hz for AC 0 85 1 1 Impulse voltage resistance rated value kV 6 Thermal current of the contact affected switching element maximum A 4 Protection class IP IP20 Ambient temperature during operating C 25 60 Item designation according to DIN EN 61346 2 K according to DIN 40719 extendable after IEC 204 2 according to IEC 750 K ...

Page 267: ... Height mm 78 Depth mm 100 Built in orientation any Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards m...

Page 268: ...duct function removable terminal for auxiliary and control circuit No Design of the electrical connection screw type terminals Conductor cross section that can be connected solid mm 0 75 2 5 finely stranded with wire end processing mm 0 75 2 5 AWG number as coded connectable conductor cross section solid 20 12 stranded 18 14 Tightening torque with screw type terminals N m 0 6 0 8 Number of change ...

Page 269: ...l Yes defect storage Yes Type of voltage of the controlled supply voltage AC DC Operating frequency rated value Hz 15 400 Control supply voltage for DC rated value V 24 240 at 50 Hz at AC rated value V 24 240 at 60 Hz at AC rated value V 24 240 Working range factor supply voltage rated value for DC 0 85 1 1 at 50 Hz for AC 0 85 1 1 at 60 Hz for AC 0 85 1 1 Impulse voltage resistance rated value kV...

Page 270: ...idewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting snap on fastening on 35 mm standard rail Product function removable terminal for auxiliary and control circuit No Design of the electrical connection screw type terminals Conductor cross section that can be connected solid mm 0...

Page 271: ...cation Undervoltage Overvoltage Increased current on a motor with corresponding overheating Unintended device reset Power system collapse on overloaded supply voltages Fork lift trucks Heating systems Cranes Elevators Protection from undervoltage especially with battery power result e g exhaustive discharge System protection against destruction caused by supply overvoltages Energy supply to the li...

Page 272: ...or menu navigation SET key for menu navigation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage M GND Measuring signal input IN Measuring signal input 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact...

Page 273: ... parameters in Chapter Parameters Page 363 Monitoring The output relay K1 responds in accordance with the set relay switching behavior closed circuit principle NC or open circuit principle NO The set tripping delay time starts if the monitored voltage overshoots or undershoots the corresponding set threshold value After expiry of the tripping delay time the output relay K1 changes the switching st...

Page 274: ...age monitoring relay 3UG4 3RR2 monitoring relays 274 Manual 05 2016 NEB927043002000 RS AC 004 Function diagrams 3UG4631 3UG4632 Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle ...

Page 275: ...als Arrow keys for menu navigation SET key for menu navigation Device article number Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact You can find additional inf...

Page 276: ...responds in accordance with the set relay switching behavior closed circuit principle NC or open circuit principle NO An output change over contact is available as a signaling contact If the voltage is switched on the display will show the current measured value and a symbol for monitoring for voltage overshoot voltage undershoot or range monitoring Startup delay To be able to start a drive the ou...

Page 277: ...age monitoring relay 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 277 Function diagrams 3UG4633 Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle ...

Page 278: ...0 V2 275 V3 0 1 V 30 V1 260 V2 3 SET Hysteresis Hyst 0 1 V 30 V1 300 V2 150 V3 0 1 V 2 V1 5 V2 3 SET ON delay time onDel 0 1 s3 20 s3 0 1 s3 0 1 s3 SET Tripping delay time 0 1 s 20 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Hand RESET no Autoreset SET Relay switching behavior closed circuit principle NC open circuit principle NO NC NO NC 1 3UG4631 voltage monitoring relay 2 3UG4632 volt...

Page 279: ...are indicated on the display as a diagnostics message with flashing symbols Display area Symbol Meaning 20 0V Measured voltage is displayed Monitoring for voltage overshoot Monitoring for voltage undershoot Range monitoring monitoring for voltage overshoot and undershoot Voltage is in correct range A voltage overshoot has occurred A voltage undershoot has occurred Not flashing Relay contact 11 12 ...

Page 280: ...matic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediately Alterna...

Page 281: ... Internal circuit diagrams 3UG4631 3UG4632 and 3UG4633 3UG4631 3UG4632 voltage monitoring relays 3UG4633 voltage monitoring relay Note On the 24 V AC DC versions of the 3UG4631 AA30 and 3UG4632 AA30 terminals A2 and M GND are electrically connected in the device On the 24 to 240 V AC DC versions of the 3UG4631 AW30 and 3UG4632 AW30 terminals A2 and M GND are electrically separated ...

Page 282: ...ams 3UG4 3RR2 monitoring relays 282 Manual 05 2016 NEB927043002000 RS AC 004 10 6 2 Wiring examples 3UG4631 AA30 3UG4632 AA30 Image 10 1 3UG4631 AA30 3UG4632 AA30 3UG4631 AW30 3UG4632 AW30 Image 10 2 3UG4631 AW30 3UG4632 AW30 3UG4633 Image 10 3 3UG4633 ...

Page 283: ... 2 Type of voltage for monitoring AC DC Number of poles for main current circuit 1 Measurable line frequency Hz 500 40 40 500 Measurable voltage for AC V 0 1 60 10 600 17 275 0 1 60 10 600 17 275 for DC V 0 1 60 10 600 17 275 0 1 60 10 600 17 275 Adjustable voltage range V 0 1 60 10 600 17 275 0 1 60 10 600 17 275 Adjustable response delay time when starting s 0 1 20 0 1 20 with lower or upper lim...

Page 284: ...gn of the display LCD Product function tension window recognition of 1 phase Yes tension window recognition of 3 phases No tension window recognition DC Yes overvoltage recognition of 1 phase Yes overvoltage recognition of 3 phases No overvoltage recognition DC Yes undervoltage recognition of 1 phase Yes undervoltage recognition of 3 phases No undervoltage recognition DC Yes reset external Yes sel...

Page 285: ...t Relative temperature related measurement deviation 0 1 Relative repeat accuracy 1 Type of voltage of the controlled supply voltage AC DC Control supply voltage at 50 Hz at AC rated value V 24 17 275 24 240 24 17 275 24 240 at 60 Hz at AC rated value V 24 17 275 24 240 24 17 275 24 240 for DC rated value V 24 17 275 24 240 24 17 275 24 240 Working range factor supply voltage rated value at 50 Hz ...

Page 286: ...ording to IEC 60068 2 6 1 6 Hz 15 mm 6 500 Hz 2g Resistance against shock according to IEC 60068 2 27 sinusoidal half wave 15g 11 ms Installation altitude at a height over sea level maximum m 2 000 Maximum permissible voltage for safe disconnection between control and auxiliary circuit V 300 between auxiliary circuit and auxiliary circuit V 300 Conductor bound parasitic coupling BURST according to...

Page 287: ...ee of pollution 3 rated value V 690 Ambient temperature during operating C 25 60 during storage C 40 85 85 40 40 85 during transport C 40 85 85 40 40 85 Design of the electrical isolation Safe isolation Galvanic isolation between entrance and outlet Yes between the outputs Yes between the voltage supply and other circuits No Yes No Yes Mechanical operating cycles as operating time typical 10 000 0...

Page 288: ...intained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 Type of mounting snap on mounting Product function removable terminal for auxiliary and control circuit Yes Design of the electrical connection screw type terminals spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire e...

Page 289: ...itoring and load shedding Underload monitoring in the low end performance range Monitoring for overload Simple cos phi monitoring in power systems for controlling compensation systems Cable break between the control cabinet and the motor Fans in the case of a broken fan belt for example Pumps in the case of an idling pump for example Filter system a contaminated filter system for example Reactive ...

Page 290: ...r Label Legend for menu Display for parameterization actual value indication and diagnostics Terminal labels Lx Power supply measuring signal Ly N Power supply measuring signal IN Measuring signal input current 12 Output relay K1 CO contact NC contact 11 Output relay K1 CO contact root 14 Output relay K1 CO contact NO contact 22 Output relay K2 CO contact NC contact 21 Output relay K2 CO contact r...

Page 291: ...d factory settings of the available parameters in Chapter Operation Page 296 You will find a description of the individual parameters in Chapter Parameters Page 363 Note The specified voltages represent the absolute thresholds Monitoring If the motor is switched on and the current value overshoots the measuring range limit 0 2 A the set ON delay time begins onDel During this time undershooting or ...

Page 292: ...ple even if the measured value is still under the set value Tripping delay If the measured value overshoots or undershoots the set threshold after expiry of the ON delay time onDel the set tripping delay time Del and the relay symbol will flash After expiry of this time the output relays change the switching state On the display the current measuring value and the symbol for undershoot or overshoo...

Page 293: ...05 2016 NEB927043002000 RS AC 004 293 Function diagrams 3UG4641 lower current measuring threshold 0 2 A Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle J currently set current value I set threshold value for the current ...

Page 294: ...4 Manual 05 2016 NEB927043002000 RS AC 004 Function diagrams 3UG4641 active current monitoring Ires Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle J currently set current value I set threshold value for the current ...

Page 295: ...Manual 05 2016 NEB927043002000 RS AC 004 295 Function diagrams 3UG4641 cos phi monitoring Display Memory no Relay switching behavior NC closed circuit principle Memory no Relay switching behavior NO open circuit principle cos φ currently set value for cos φ PF power factor set threshold for cos φ ...

Page 296: ...Threshold for undershoot Ires 0 2 A or OFF 10 A 0 1 A 1 A RUN Threshold for overshoot Ires 0 2 A 10 A or OFF 0 1 A 3 A RUN Threshold for undershoot φ 0 1 or OFF 0 99 0 01 0 2 RUN Threshold for overshoot φ 0 1 0 99 or OFF 0 01 0 5 SET Hysteresis Hyst 0 1 A 2 A 0 1 mA 0 5 A SET ON delay time onDel 0 s 99 s 1 s Deactivated 0 s SET Tripping delay time Del 0 1 s 20 s 0 1 s 0 1 s SET Reset response Mem ...

Page 297: ...ashing symbols Display area Symbol Meaning 5 0A Displays the measured current Monitoring for overshoot φ Ires output relay K2 Monitoring for undershoot φ Ires output relay K1 Window monitoring φ and φ Ires and Ires Measuring values are in the correct range A measuring value overshoot has occurred A measuring value undershoot has occurred Not flashing Relay contact 11 12 open relay contact 11 14 cl...

Page 298: ...ected Automatic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediate...

Page 299: ...ng relay 11 6 Circuit diagrams 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 299 11 6 Circuit diagrams 11 6 1 Internal circuit diagrams Internal circuit diagrams 3UG4641 3UG4641 cos phi and active current monitoring relay ...

Page 300: ...Wiring examples Cos phi and active current monitoring for single phase motors Image 11 1 Cos phi and active current monitoring for single phase motors Cos phi and active current monitoring for three phase motors Cos phi and active current monitoring for three phase motors Cos phi and active current monitoring for three phase motors with neutral conductor ...

Page 301: ...27043002000 RS AC 004 301 Cos phi and active current monitoring for three phase motors with transformers for currents Cos phi and active current monitoring for three phase motors with transformers for currents Cos phi and active current monitoring for three phase motors with transformer for currents with neutral conductor ...

Page 302: ...er 1 Adaptable response value phase angle 0 1 0 99 Type of current for monitoring AC Measurable current A 0 2 10 Adjustable response current 1 A 0 2 10 Adjustable response current 2 A 0 2 10 Adjustable response delay time when starting s 0 99 with lower or upper limit violation s 0 1 20 Adjustable switching hysteresis for measured current value A 0 1 2 Stored energy time at mains power cut minimum...

Page 303: ...isplay 1 digit Relative repeat accuracy 1 Type of voltage of the controlled supply voltage AC Control supply voltage at 50 Hz at AC rated value V 90 690 at 60 Hz at AC rated value V 90 690 Working range factor supply voltage rated value at 50 Hz for AC 1 at 60 Hz for AC 1 Impulse voltage resistance rated value kV 6 Recorded real power W 2 Protection class IP IP20 Electromagnetic compatibility IEC ...

Page 304: ...ic discharge according to IEC 61000 4 2 6 kV contact discharge 8 kV air discharge Field bound parasitic coupling according to IEC 61000 4 3 10 V m Thermal current of the contact affected switching element maximum A 5 Insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value V 690 Degree of pollution 3 Ambient temperature during operating C 25 60 ...

Page 305: ...tance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Type of mounting snap on mounting Product function ...

Page 306: ...ing loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torque with screw type terminals N m 1 2 0 8 Number of change over s...

Page 307: ...pplication areas of the speed monitoring relays Function Application Monitoring for overload underload Conveyor belt monitoring transported goods for completeness for example Milling machine Turning machine Slippage or tear of a drive belt The speed monitoring relays can also be used for all functions where a continuous pulse signal is to be monitored e g belt travel monitoring completeness check ...

Page 308: ...nostics Terminal labels A1 Rated control supply voltage A2 Rated control supply voltage 24V Supply voltage for pulse input IN1 24 V max 50 mA IN1 Pulse input for pnp switching three wire sensor for 0 V DC 24 V pulses 0V Supply voltage for pulse input IN1 0 V max 50 mA EN Enable RES Reset IN2 Pulse input for two wire NAMUR sensor or mechanical contact 8V2 Supply voltage for pulse input IN2 12 Outpu...

Page 309: ...shold values for the speed Period duration measurement detects a speed deviation after only two pulses By using up to ten pulse encoders distributed simultaneously across the range the period duration and thus the response time can be reduced By taking account of the number of sensors in the speed monitoring relay the speed continues to be displayed in revolutions per minute The number of pulses s...

Page 310: ...e operating mode without enable contact terminal EN Enable not connected the output relay responds when the rated control supply voltage is switched in accordance with the set closed circuit principle NC or open circuit principle NO relay control is inverted to the closed circuit principle NC and the ON delay time onDel is started provided the lower threshold is not at OFF If the speed reaches the...

Page 311: ...ory no Relay switching behavior NC closed circuit principle Without Enable input With Enable input RPM currently measured speed rpm set threshold for the speed Note The relay control for the open circuit principle NO is inverted to the represented function diagrams in the closed circuit principle NC after application of the rated control supply voltage US ...

Page 312: ...hold for undershoot rpm 0 10 or OFF 2200 or OFF 0 1 800 RUN Threshold for overshoot rpm 0 10 or OFF 2200 or OFF 0 1 1400 SET Scaling factor Scale 1 10 1 1 SET Hysteresis Hyst 0 1 or OFF 99 9 0 1 Disabled OFF SET ON delay time onDel 0 s 900 0 s 0 1 s Deactivated 0 s SET Tripping delay time Del 0 1 s 99 9 s 0 1 s 0 1 s SET Reset response Mem no Autoreset yes Hand RESET no Autoreset SET Relay switchi...

Page 313: ... error The following statuses and faults are indicated on the display as a diagnostics message with flashing symbols Display area Symbol Meaning 1100 Measured speed is displayed Monitoring for speed overshoot rpm Monitoring for speed undershoot rpm Range monitoring rpm and rpm Speed is in the correct range A speed overshoot has occurred A speed undershoot has occurred Not flashing Relay contact 11...

Page 314: ...atic reset Memory O Mem no The device is reset automatically as soon as a previously occurring error has been dealt with Manual RESET Memory I Mem yes To reset the devices with digital setting it is necessary to press both arrow keys simultaneously for more than 2 5 s after removal of the cause of error If the cause of the error has not been removed a new error message appears immediately Alternat...

Page 315: ...rnal circuit diagrams Internal circuit diagrams 3UG4651 speed monitoring relay 3UG4651 AA30 24 V AC DC 3UG4651 AW30 24 to 240 V AC DC Note On the 24 V AC DC versions of the 3UG4651 AA30 terminals A1 A2 and 0V 24V are electrically connected in the device On the 24 to 240 V AC DC versions of the 3UG4651 AW30 terminals A1 A2 and 0V 24V are electrically separated ...

Page 316: ...itoring relay 12 6 Circuit diagrams 3UG4 3RR2 monitoring relays 316 Manual 05 2016 NEB927043002000 RS AC 004 12 6 2 Wiring examples Speed monitoring relays without Enable input Speed monitoring relays with Enable input ...

Page 317: ... for signal 1 recognition V 30 Input current at the digital input 2 initial value for signal 0 recognition mA 0 final value for signal 0 recognition mA 1 2 initial value for signal 1 recognition mA 2 1 final value for signal 1 recognition mA 8 2 Design of the input reducing entrance No Design of the sensor at the digital input 1 connectable PNP switching three wire sensor or mechanical impulse con...

Page 318: ...sed circuit current principle Yes Starting time after the control supply voltage has been applied ms 500 Number of outputs as contact affected switching element safety related delayed switching 0 non delayed 0 for reporting function delayed switching 1 non delayed 0 as contact less semiconductor switching element safety related delayed switching 0 non delayed 0 for reporting function delayed switc...

Page 319: ...P20 Electromagnetic compatibility IEC 60947 1 IEC 61000 6 2 IEC 61000 6 4 Operating current at 17 V minimum mA 5 Continuous current of the DIAZED fuse link of the output relay A 4 Current carrying capacity of output relay at AC 15 at 250 V at 50 60 Hz A 3 at 400 V at 50 60 Hz A at DC 13 at 24 V A 1 at 125 V A 0 2 at 250 V A 0 1 Resistance against shock according to IEC 60068 2 27 sinusoidal half w...

Page 320: ...onsumed at 24 V for AC maximum V A 2 5 4 at 240 V for AC maximum V A 9 at 24 V for DC maximum V A Ambient temperature during operating C 25 60 during storage C 40 80 during transport C 40 80 Relative humidity during operating phase maximum Galvanic isolation between entrance and outlet Yes between the outputs No Mechanical operating cycles as operating time typical 10 000 000 Electrical operating ...

Page 321: ...epth mm 102 103 Built in orientation any Distance to be maintained to earthed part forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Distance to be maintained conductive elements forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 ...

Page 322: ...ls spring loaded terminals Type of the connectable conductor cross section solid 1x 0 5 4 mm2 2x 0 5 2 5 mm2 2x 0 25 1 5 mm2 finely stranded with wire end processing 1x 0 5 2 5 mm2 2x 0 5 1 5 mm2 2 x 0 25 1 5 mm2 without wire end processing 2x 0 25 1 5 mm2 for AWG conductors solid 2x 20 14 2x 24 16 stranded 2x 20 14 2x 24 16 Tightening torque with screw type terminals N m 0 8 1 2 Number of NO cont...

Page 323: ...g the current monitoring relays with analog setting The sealable membrane is fixed to the front of the device and secures the rotary buttons and sliding switches against unintentional tampering Mounting The diagram below shows an example mounting scenario based on mounting the sealable cover on the 3RR21 current monitoring relay with analog setting size S0 The mounting sequence for the sealable co...

Page 324: ...stand alone installation are available for separate DIN rail mounting or screw mounting The accessories are exactly the same as the accessories for the 3RU21 thermal overload relay and the 3RB3 solid state overload relay Table 13 2 Stand alone assembly of the 3RR2 current monitoring relay Size Connection system Terminal support for stand alone assembly S00 Screw type 3RU2916 3AA01 Spring loaded 3R...

Page 325: ...nal support screw connection in the main circuit Step Instructions Figure 1 Guide the current monitoring relay into the terminal support from below 2 Tighten the screws on the terminal support with a Pozidriv size 2 S00 or Pozidriv size 3 S0 screwdriver tightening torque 0 8 to 1 2 Nm Check that the cable is clamped tight Table 13 4 Mounting the terminal support spring loaded connection in the mai...

Page 326: ...upport 3 Use a screwdriver to dislodge the terminal support from the current monitoring relay 4 Pull the current monitoring relay down and away from the contactor Table 13 6 Removing the terminal support spring loaded connection in the main circuit Step Instructions Figure 1 Release the current monitoring relay by pushing down the clip on the underside of the terminal support 2 Position the screwd...

Page 327: ... securing the monitoring relays with analog setting The sealable membrane is affixed to the front of the device and secures rotary buttons and sliding switches against unintentional manipulation Note The sealable membrane does not protect keys against unauthorized or unintentional manipulation Mounting The figure below shows how to attach the 3RP1902 sealable cover to the monitoring relay Table 13...

Page 328: ...of the push in lugs the monitoring relays can be secured with screws on a level surface e g a wall Two push in lugs are required per device Mounting The figure below shows how to attach the 3RP1903 push in lugs to the monitoring relay Table 13 8 Attaching the push in lugs on the monitoring relay Step Instructions Figure 1 Insert the push in lugs at the top and bottom on the monitoring relay and ti...

Page 329: ...13 1 3UG3207 3A three pole wire electrode Note The wire electrode can be cut to the required length or bent before or after installation The Teflon insulation must be stripped back about 5 mm 3UG3207 2A two pole wire electrode The 3UG3207 2A two pole wire electrode can be used for two point filling level control in a tank if the conductive tank is used as a reference electrode The probe can also b...

Page 330: ... also be used to warn of the ingress of water into a casing Image 13 3 3UG3207 2B two pole bow electrode 3UG3207 1B single pole bow electrode for side mounting The 3UG3207 1B single pole bow electrode for side mounting can also be used as a max value electrode or for alarming in conductive tanks or tubes Image 13 4 3UG3207 1B single pole bow electrode 3UG3207 1C single pole rod electrode for side ...

Page 331: ... Single pole Length mm 500 500 Insulation Teflon insulation PTFE Yes Yes Yes Yes Mounting Vertical Vertical Laterally Laterally Laterally Screw in gland width across the flats 22 Thread Inch R 3 8 Connecting cable 2 m long mm2 3 x 0 5 Operating temperature C 90 Operating pressure bar 10 Assignment cable electrode Brown cable Medium electrode Cannot be assigned Gland Gland Gland White cable Cannot ...

Page 332: ... available in three sizes with a bushing opening of 40 mm 65 mm and 120 mm Image 13 6 3UL22 summation current transformers Type a1 a2 a3 a4 a5 a6 b1 b2 b3 b4 b5 c1 c2 c3 3UL2201 100 75 10 15 for M4 80 85 72 5 42 5 7 5 40 65 50 40 3UL2202 125 95 10 15 for M4 100 110 97 5 55 7 5 65 70 60 45 3UL2203 200 165 20 20 for M4 170 200 100 100 10 120 85 70 55 Technical data Table 13 10 Technical data 3UL22 s...

Page 333: ...L23 residual current transformer is available in six sizes with bushing opening diameters of 35 mm 55 mm 80 mm 110 mm 140 mm and 210 mm 13 2 5 1 General information Various circuit types with resulting fault currents The following table shows various circuit types and the resulting fault currents in the event of a ground fault Circuits 1 to 6 create pure AC fault currents or AC fault currents with...

Page 334: ...ing relays 334 Manual 05 2016 NEB927043002000 RS AC 004 Suitable FI type Circuit Load current Fault current Image 13 7 Possible fault current forms and suitable residual current devices More information is available on the Internet www siemens com industrial controls support ...

Page 335: ...ring relay and the 3UL23 residual current transformer have been installed completely It is absolutely necessary to short circuit previously installed 3UL23 residual current transformers when the units are not connected to a monitoring relay 3UL23 residual current transformer conductor cross sections In accordance with DIN EN 60204 1 Safety of machinery the current carrying capacity of conductors i...

Page 336: ...B927043002000 RS AC 004 All live cables must be routed as close to the center of the transformer as possible Any neutral conductor must be routed through the transformer Grounded protective conductors must not be routed through the transformer or need to be routed through the transformer in both directions ...

Page 337: ...0 RS AC 004 337 Route power cables around the residual current transformer in a straight line and ensure the area corresponds at minimum to the internal transformer diameter X residual current transformer The internal transformer diameter must be at minimum twice the size of the power cable bundle diameter a 2 x b ...

Page 338: ...rmer connecting cable must not exceed 5 Ω to ensure correct fault current monitoring This is ensured by the following limits given here as examples Conductor cross section mm AWG kcmil Max cable length m 0 5 20 70 1 0 18 140 1 5 16 210 2 5 14 12 300 4 01 10 550 1 only possible in the case of transformers with a 210 mm diameter Note We recommend using twisted cables Maximum cable lengths see table ...

Page 339: ...ength that passes through the transformer due to the extended distance between power cables and transformer reduces the measuring accuracy but also the susceptibility to interference 4 Route the transformer connecting cables at a greater distance to live cables 5 a Using solid shield sleeves or wound shield sleeves made of soft iron sheet metal may be advisable to be able to monitor for small faul...

Page 340: ...e g turned from a normal low carbon tool steel must be precisely in contact with the internal ring of the residual current transformer The wall thickness of the sleeve must be 1 mm at minimum the length of the sleeve L must correspond to the internal diameter of the transformer used Phase and neutral conductor Shield sleeve Residual current transformer ...

Page 341: ...urrent is correspondingly high In some instances false alarms may occur for no apparent reason However these represent installation faults The following examples demonstrate the most common installation faults Parallel connections of conductors If several residual current monitoring relays are installed in one network a conductor routed through several residual current transformers must not be con...

Page 342: ...004 Mixing up conductors In a network with several loads there is the risk that active conductors of loads that are to be separately monitored for fault currents can get mixed up This fault leads to false tripping as the inflowing and outflowing currents are not always exactly the same strength even if the loads are identical ...

Page 343: ...through the residual current transformer from the same direction Due to the restricted space in a control cabinet it may be easier to route the neutral conductor through the transformer in the opposite direction to the phase conductor This means the vectorial sum of currents does not equal zero even without a ground fault and the residual current monitoring relay trips 13 2 5 5 Internal circuit di...

Page 344: ...rocedure Step Instructions Figure 1 2 Insert the fixing lugs into the designated openings in the unit until they reach the stop 3 Place the device against the wall surface prepared for establishing a screw connection 4 Insert the head screws through the corresponding elongated holes in the fixing lugs 5 Screw the device onto the level surface so that it is secure ...

Page 345: ...irement At the installation location a horizontal 35 mm wide mounting rail in accordance with DIN EN 60715 has been properly secured Rail mounting is possible with residual current transformers with bushing opening diameters of up to 55 mm only 3UL2302 1A 3UL2303 1A Step Instructions Figure 1 Mount the holder 3UL2900 to the device 2 Mount the device on the rail ...

Page 346: ... protection Yes Height mm 64 Width mm 70 92 124 5 Depth mm 75 5 98 130 Ambient temperature during operating C 25 60 Type of mounting screw fixing Diameter of the feedthrough mm 35 55 80 Conductor cross section that can be connected of the terminal mm 2 5 Item designation according to DIN 40719 extendable after IEC 204 2 according to IEC 750 T according to DIN EN 61346 2 B Design of the electrical ...

Page 347: ...eight mm 64 62 Width mm 163 201 300 Depth mm 169 207 5 286 Ambient temperature during operating C 25 60 Type of mounting screw fixing Diameter of the feedthrough mm 110 140 210 Conductor cross section that can be connected of the terminal mm 2 5 4 Item designation according to DIN 40719 extendable after IEC 204 2 according to IEC 750 T according to DIN EN 61346 2 B Design of the electrical connect...

Page 348: ...ories 13 2 Accessories for 3UG4 monitoring relays 3UG4 3RR2 monitoring relays 348 Manual 05 2016 NEB927043002000 RS AC 004 13 2 5 8 Dimension drawings 3UL23 residual current transformer Image 13 9 3UL2302 1A ...

Page 349: ...Accessories 13 2 Accessories for 3UG4 monitoring relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 349 Image 13 10 3UL2303 1A Image 13 11 3UL2304 1A ...

Page 350: ...Accessories 13 2 Accessories for 3UG4 monitoring relays 3UG4 3RR2 monitoring relays 350 Manual 05 2016 NEB927043002000 RS AC 004 Image 13 12 3UL2305 1A Image 13 13 3UL2306 1A ...

Page 351: ...Accessories 13 2 Accessories for 3UG4 monitoring relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 351 Image 13 14 3UL2307 1A ...

Page 352: ...ays against unauthorized or unintentional manipulation Siemens also offers a sealable membrane 3TK2820 0AA00 with a width of 22 5 mm for securing the monitoring relays The sealable membrane is affixed to the front of the device and secures rotary buttons and sliding switches against unintentional operation Installation The figure below shows how to attach the 3UG4983 0C sealable cover to the 3UG45...

Page 353: ...operation and it is connected between the 3UG4583 insulation monitoring relay and the system to be monitored Note If the continuously present voltage is greater than 600 V a minimum gap of 10 mm must be maintained between the neighboring devices Front view terminal labeling 3UG4983 Front view Description Position digits Terminal block Screw type connections are possible Device article number Circu...

Page 354: ...e 3UG4983 upstream module mounting onto standard rail Step Instructions Figure 1 2 Position the device on the top edge of the mounting rail and press it down until it snaps onto the bottom edge of the rail Table 13 14 Disassembling the 3UG4983 upstream module mounting onto standard rail Step Instructions Figure 1 2 To remove apply the screwdriver to the device and push it up with a twisting motion...

Page 355: ...458 insulation monitoring relays 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 355 13 3 2 1 Internal circuit diagrams Internal circuit diagram 3UG983 1A 3UG4983 1A Image 13 15 3UG4983 1A insulation monitoring relay ...

Page 356: ...h connected 3UG4983 upstream module Measuring inputs L and L can be connected to any conductor Measuring inputs L and L must always be connected to different conductors The rated system voltage is Un 690 V AC 15 to 400 Hz or Un 1000 V DC 2 wire AC system 2 wire DC system 2 wire AC system 2 wire DC system 3 wire AC system 3 wire DC system 3 wire AC system 3 wire DC system 4 wire AC system 4 wire AC...

Page 357: ...low shows how to connect the 3UG4983 upstream module to the 3UG4583 insulation monitoring relay Image 13 16 Connection example Upstream module insulation monitoring relay Note The maximum cable length between the 3UG4583 insulation monitoring relay and the 3UG4983 upstream module is 0 4 m Note The maximum cable length of the measuring circuit connections is 50 m or 100 pF m ...

Page 358: ...chnical details 3UG4983 1A Product function upstream module Type of voltage of the controlled supply voltage AC DC Impulse voltage resistance rated value kV 8 Protection class IP IP20 Mechanical design 3UG4983 1A Width mm 45 Height mm 78 Depth mm 100 Built in orientation any Distance to be maintained to the ranks assembly forwards mm 0 backwards mm 0 sidewards mm 0 upwards mm 0 downwards mm 0 Dist...

Page 359: ...ing snap on fastening on 35 mm standard rail Product function removable terminal for auxiliary and control circuit No Design of the electrical connection screw type terminals Conductor cross section that can be connected solid mm 0 75 2 5 finely stranded with wire end processing mm 0 75 2 5 AWG number as coded connectable conductor cross section solid 20 12 stranded 18 14 Tightening torque with sc...

Page 360: ...Accessories 13 3 Accessories for 3UG458 insulation monitoring relays 3UG4 3RR2 monitoring relays 360 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 361: ... for polyphase current monitoring S2 3RR2243 3ZX1012 0RR22 4AA1 SIRIUS monitoring relay for level monitoring of conductive liquids 3UG4501 3ZX1012 0UG45 0BA1 SIRIUS monitoring relay for phase sequence monitoring 3UG4511 3ZX1012 0UG45 3AA1 SIRIUS monitoring relay for phase sequence and phase failure monitoring 3UG4512 3ZX1012 0UG45 2AA1 SIRIUS monitoring relay for phase sequence and undervoltage mo...

Page 362: ...ay for single phase voltage monitoring self powered 3UG4633 3ZX1012 0UG46 4AA1 SIRIUS monitoring relay for power factor and active current monitoring 3UG4641 3ZX1012 0UG46 4BA1 SIRIUS monitoring relay for speed monitoring 3UG4651 3ZX1012 0UG46 5BA1 Manuals Title Reference Functional safety Use of SIRIUS 3UG4 and 3RR2 monitoring relays with integrated sensors Internet http support automation si eme...

Page 363: ...EC NEMA The definition given above for voltage asymmetry deviates from the definition according to IEC NEMA It usually results in a greater value for voltage asymmetry than that arrived at from the definition according to IEC NEMA so that a higher level of measuring accuracy is achieved Voltage asymmetry can be parameterized as Threshold for voltage asymmetry or as Warning threshold for voltage as...

Page 364: ...ershoot Del Tripping delay time on undervoltage or overshoot of the asymmetry value Del Tripping delay time for asymmetry AsyDel Tripping delay time in the case of undershoot of the cos phi value φ Del Tripping delay time in the case of overshoot of the cos phi value φ Del ON delay time The setting of the ON delay time parameter prevents limit violations such as undershoots typical of inductive lo...

Page 365: ...t and or restart can only be modified via IO Link Note After exiting the menu level SET the ON delay time starts again Start of the ON delay The following table shows the behavior of the ON delay time onDel with the device variants 3UG4 monitoring relay and 3RR2 current monitoring relay Device variants Start of the ON delay possible for Power ON Automatic reset Manual reset 3RR21 Yes Yes Yes 3RR22...

Page 366: ...will immediately revert to its original state and a new IO Link message may be sent Further response depends on the set reset response see Reset response parameter You can find information on the switching behavior of the output relays in the Functionality chapters of the relevant monitoring relays Possible indications on the display Current undershoot I threshold I warning threshold Voltage under...

Page 367: ... indications on the display Current overshoot I threshold I warning threshold Voltage overshoot U threshold possibly U warning threshold Speed overshoot rpm threshold possibly rpm warning threshold Power factor overshoot φ threshold possibly φ warning threshold Active current overshoot Ir threshold possibly Ir warning threshold Fault current overshoot I threshold possibly I warning threshold Reset...

Page 368: ...ected to the supply voltage the initialization phase starts and internal functional tests are performed During the initialization phase that lasts approximately 1 6 s the connection to the 3UL23 residual current transformer is one of the things that is checked During this time no measurement or monitoring of the fault current takes place A is shown on the display The relay switching behavior durin...

Page 369: ...monitoring has been activated I yes and the total current of the load currents at terminals 1 L1 2 T1 3 L2 4 T2 und 5 L3 6 T3 rises above the permissible threshold S00 1 5 A S0 4 A the ON delay time onDel the tripping delay time Del and the restart delay time RsDel are stopped and both the CO contact and the semiconductor output change their switching state immediately 200 ms Indication on the dis...

Page 370: ...2 Load current monitoring diagram shown using the example of a real motor The diagram shows that it only makes sense to use the power factor cos φ to monitor the rated current up to approx 70 At a higher rated current the change in the power factor is too slight to produce measured values of any significance In contrast the monitoring quality of the apparent current Is increases along with the tor...

Page 371: ...e semiconductor output responds as an NO contact in other words if a fault is detected the supply voltage is present at output Q Drainage control OV NO on 3UG4501 only If the rotary button is in the OV Overshoot position monitoring mode drainage control is selected On the drainage control contacts 11 14 are closed when the upper threshold is overshot after the tripping delay time has expired Conta...

Page 372: ...es that have a resistivity 200 kΩ Table B 1 Resistivity of liquids Product kΩ Product kΩ Buttermilk 1 Natural water 5 Fruit juice 1 Waste water treatment 5 Vegetable juice 1 Starch solution 5 Milk 1 Oil 10 Soup 2 2 Condensation 18 Beer 2 2 Soap foam 18 Coffee 2 2 Jellies 45 Ink 2 2 Gelatin 45 Salt water 2 2 Sugar solution 90 Wine 2 2 Whisky 220 Distilled water 450 Scaling factor The scaling factor...

Page 373: ...he stabilization time can also be started through the process image of the outputs PIQ by setting the control command Start stabilization time The Stabilization time parameter is set either locally using the three keys on the device or via IO Link The requirements governing the starting of the stabilization delay Power ON and or manual reset can only be modified via IO Link The stabilization of li...

Page 374: ...Parameters 3UG4 3RR2 monitoring relays 374 Manual 05 2016 NEB927043002000 RS AC 004 ...

Page 375: ...6 NEB927043002000 RS AC 004 375 Dimension Drawings C C 1 Dimension drawings 3RR2 monitoring relay 3RR2 41 1A 30 screw connection S00 Image C 1 3RR2 41 1A 30 with contactor Image C 2 33RR2 41 1A 30 with terminal support for stand alone assembly ...

Page 376: ...R2 monitoring relay 3UG4 3RR2 monitoring relays 376 Manual 05 2016 NEB927043002000 RS AC 004 3RR2 41 2A 30 spring loaded connection S00 Image C 3 3RR2 41 2A 30 with contactor Image C 4 3RR2 41 2A 30 with terminal support for stand alone assembly ...

Page 377: ...gs 3RR2 monitoring relay 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 377 3RR2 42 1A 30 screw connection S0 Image C 5 3RR2 42 1A 30 with contactor Image C 6 3RR2 42 1A 30 with terminal support for stand alone assembly ...

Page 378: ...RR2 monitoring relay 3UG4 3RR2 monitoring relays 378 Manual 05 2016 NEB927043002000 RS AC 004 3RR2 42 2A 30 spring loaded connection S0 Image C 7 3RR2 42 2A 30 with contactor Image C 8 3RR2 42 2A 30 with terminal support for stand alone assembly ...

Page 379: ...n drawings 3RR2 monitoring relay 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 379 3RR2143 1A 30 S2 Image C 9 3RR2143 1A 30 with contactor Image C 10 3RR2143 1A 30 with terminal support for stand alone assembly ...

Page 380: ... drawings 3RR2 monitoring relay 3UG4 3RR2 monitoring relays 380 Manual 05 2016 NEB927043002000 RS AC 004 3RR2143 3A 30 S2 Image C 11 3RR2143 3A 30 with contactor Image C 12 3RR2143 3A 30 with terminal support for stand alone assembly ...

Page 381: ... drawings 3RR2 monitoring relay 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 381 3RR2243 1F 30 S2 Image C 13 3RR2243 1F 30 with contactor Image C 14 3RR2243 1F 30 with terminal support for stand alone assembly ...

Page 382: ... drawings 3RR2 monitoring relay 3UG4 3RR2 monitoring relays 382 Manual 05 2016 NEB927043002000 RS AC 004 3RR2243 3F 30 S2 Image C 15 3RR2243 3F 30 with contactor Image C 16 3RR2243 3F 30 with terminal support for stand alone assembly ...

Page 383: ...ension drawings 3UG4 monitoring relays 2 connecting terminals 3UG4 monitoring relays with 2 connecting terminals screw type connection Image C 17 3UG4 monitoring relays with 2 connecting terminals with screw type connections 3UG4 monitoring relays with 2 connecting terminals spring loaded connections Image C 18 3UG4 monitoring relays with 2 connecting terminals with spring loaded connections ...

Page 384: ...nitoring relays 3 connecting terminals 3UG4 monitoring relays with 3 connecting terminals screw type connection Image C 19 3UG4 monitoring relays with 3 connecting terminals with screw type connections 3UG4 monitoring relays with 3 connecting terminals spring loaded connections Image C 20 3UG4 monitoring relays with 3 connecting terminals with spring loaded connections ...

Page 385: ... relays Manual 05 2016 NEB927043002000 RS AC 004 385 C 2 3 Dimension drawings 3UG4 monitoring relays 4 connecting terminals 3UG4 monitoring relays with 4 connecting terminals screw type connection Image C 21 3UG4 monitoring relays with 4 connecting terminals with screw type connections ...

Page 386: ...ring relays 3UG4 3RR2 monitoring relays 386 Manual 05 2016 NEB927043002000 RS AC 004 3UG4 monitoring relays with 4 connecting terminals spring loaded connections Image C 22 3UG4 monitoring relays with 4 connecting terminals with spring loaded connections ...

Page 387: ...EB927043002000 RS AC 004 387 C 2 4 Dimension drawings 3UG458 insulation monitoring relay 3UG4983 upstream module 3UG4581 1AW30 3UG4582 1AW30 monitoring relays Image C 23 3UG4581 1AW30 3UG4582 1AW30 insulation monitoring relays 3UG4583 1CW30 monitoring relay Image C 24 3UG4583 1CW30 insulation monitoring relay ...

Page 388: ...Dimension Drawings C 2 Dimension drawings 3UG4 monitoring relays 3UG4 3RR2 monitoring relays 388 Manual 05 2016 NEB927043002000 RS AC 004 3UG4983 1A upstream module Image C 25 3UG4983 1A upstream module ...

Page 389: ...3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 389 Menu based operation D ...

Page 390: ...Menu based operation 3UG4 3RR2 monitoring relays 390 Manual 05 2016 NEB927043002000 RS AC 004 3RR2241 current monitoring relay ...

Page 391: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 391 3RR2242 current monitoring relay ...

Page 392: ...Menu based operation 3UG4 3RR2 monitoring relays 392 Manual 05 2016 NEB927043002000 RS AC 004 3RR2243 current monitoring relay ...

Page 393: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 393 3UG4614 line monitoring relay ...

Page 394: ...Menu based operation 3UG4 3RR2 monitoring relays 394 Manual 05 2016 NEB927043002000 RS AC 004 3UG4615 line monitoring relay ...

Page 395: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 395 3UG4616 line monitoring relay ...

Page 396: ...Menu based operation 3UG4 3RR2 monitoring relays 396 Manual 05 2016 NEB927043002000 RS AC 004 3UG4617 line monitoring relay ...

Page 397: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 397 3UG4618 line monitoring relay ...

Page 398: ...Menu based operation 3UG4 3RR2 monitoring relays 398 Manual 05 2016 NEB927043002000 RS AC 004 3UG4621 current monitoring relays ...

Page 399: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 399 3UG4622 current monitoring relays ...

Page 400: ...Menu based operation 3UG4 3RR2 monitoring relays 400 Manual 05 2016 NEB927043002000 RS AC 004 3UG4624 residual current monitoring relay ...

Page 401: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 401 3UG4625 residual current monitoring relay ...

Page 402: ...Menu based operation 3UG4 3RR2 monitoring relays 402 Manual 05 2016 NEB927043002000 RS AC 004 3UG4631 voltage monitoring relay ...

Page 403: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 403 3UG4632 voltage monitoring relay ...

Page 404: ...Menu based operation 3UG4 3RR2 monitoring relays 404 Manual 05 2016 NEB927043002000 RS AC 004 3UG4633 voltage monitoring relay ...

Page 405: ...Menu based operation 3UG4 3RR2 monitoring relays Manual 05 2016 NEB927043002000 RS AC 004 405 3UG4641 cos phi and active current monitoring relay ...

Page 406: ...Menu based operation 3UG4 3RR2 monitoring relays 406 Manual 05 2016 NEB927043002000 RS AC 004 3UG4651 speed monitoring relay ...

Page 407: ...lable cover 327 327 352 352 Accessories Current monitoring relays 3RR2 Sealable cover 323 Active current 370 App SIEMENS Industry Support 16 Apparent current 370 Application areas 3RR2 current monitoring relays 47 3UG4 1 line monitoring relay 102 3UG4501 filling level monitoring relay 89 3UG4581 3UG4582 3UG4583 insulation monitoring relays 215 3UG4621 3UG4622 current monitoring relays 173 3UG4625 ...

Page 408: ...11 line monitoring relay 103 3UG4512 line monitoring relay 111 3UG4513 line monitoring relay 121 3UG4581 insulation monitoring relay 218 3UG4582 insulation monitoring relay 235 3UG4583 insulation monitoring relay 236 3UG4614 line monitoring relay 131 3UG4615 3UG4616 line monitoring relays 142 3UG4617 3UG4618 line monitoring relays 156 3UG4621 3UG4622 current monitoring relays 174 3UG4625 residual ...

Page 409: ...UG4632 3UG4633 voltage monitoring relay 271 P Parameters for 3RR21 current monitoring relay analog 56 3UG4501 filling level monitoring relay 94 3UG4513 line monitoring relay 124 3UG4581 insulation monitoring relay 224 3UG4582 3UG4583 insulation monitoring relays 249 3UG4614 line monitoring relay 135 3UG4615 3UG4616 line monitoring relays 146 3UG4617 3UG4618 line monitoring relays 161 3UG4621 3UG46...

Page 410: ...ns 27 Stabilization delay 373 Standards 17 Summation current transformers 3UG4624 residual current monitoring relay 332 T Technical Assistance 16 Technical data 14 Terminal support for stand alone assembly 3RR2 current monitoring relays 324 325 326 Test certificates 18 Threshold for overshoot 367 Threshold for undershoot 366 Tripping delay time 364 tRMS 38 True root mean square measurement 38 Two ...

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