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Description

2.6 Possible uses and portfolio

3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01

2.6.1

Portfolio of 3WL10 air circuit breakers

The 3WL10 air circuit breaker is part of the Siemens 3WL range, which covers all breaking

capacity classes between B and C and extends to 630 to 6300 A in the basic versions.

Frame size

Frame size and breaking capacity classes

The 3WL10 air circuit breaker has size 0 and is suitable for:

●

Rated currents between 630 A and 1250 A

●

Rated voltages up to 690 V

●

Breaking capacity I

of 42 kA, 55 kA, and 66 kA at 440 V AC

Selective response

With its contact system, the 3WL10 air circuit breaker is designed for time-selective time-

delayed tripping.

●

A short-circuit-induced trip can be delayed for up to 400 ms (short-time-delayed short-

circuit protection ST).

●

Between these, you have extensive possibilities for fine adjustment of the values, in

respect of current response thresholds, delay times and for switching between

characteristics, such as fixed delay time and inverse-time I²t characteristic

●

For maximum requirements, the instantaneous short-circuit protection (INST) can

additionally be disabled to temporarily deactivate or increase the current response

threshold of the short-circuit protection ST up to the I

value of the device. After this

utilizable time and current limit has been exceeded, the circuit breaker instantaneously

trips within 10 ms and interrupts the overcurrent within 30 ms.

These settings give downstream devices time to clear the fault in the feeder affected (time-

selective response, thus ensuring maximum availability in the outgoing feeders).
On the other hand, a system can be protected specifically by optimization of the circuit

breaker for fast response. In this case, it clears a lower-level fault within 30 ms, irrespective

of any selective response.

Содержание SENTRON 3VA27

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Страница 3: ...__ ___________________ ___________________ SENTRON Protection devices 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 Introduction 1 Description 2 Accessories 3 Application planning 4 Connection and commissioning 5 Operation 6 Service and maintenance 7 Technical specifications 8 Dimension drawings 9 Circuit diagrams 10 Appendix A ESD guidelines B List...

Страница 4: ...be operated 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 WARNIN...

Страница 5: ... air circuit breakers 23 2 6 2 Portfolio of 3VA27 molded case circuit breakers 24 2 6 3 Electronic trip unit ETU 25 2 6 4 3VA27 3WL10 for motor protection applications 26 2 7 Basic unit 31 2 7 1 Product and mounting versions 31 2 7 2 Design of the circuit breaker 32 2 7 3 Withdrawable breaker 33 2 7 4 Technical overview 36 2 7 5 Circuit breaker identification 43 2 8 Electronic trip unit ETU 46 2 8...

Страница 6: ...ors of the main power supply grounded transformer star point G_ret using the ground fault return 120 3 5 3 3 Summation current transformer Rc CT 120 3 5 4 Locking and interlocking 121 3 5 5 Support for floor fixation fixed breaker 130 3 6 Breaker Data Adapters and test devices 131 3 6 1 Overview 131 3 6 2 TD310 Activation Trip Box 132 3 6 3 TD410 Breaker Data Adapter 133 3 6 4 TD420 test device 13...

Страница 7: ...89 5 5 2 Procedure for testing the accessories 191 5 5 3 Final tests 193 6 Operation 195 6 1 Operation 195 6 1 1 Closing and opening manually 195 6 1 2 Entering parameters 197 6 1 3 Racking the circuit breaker withdrawable breaker 200 6 2 Alarms 203 6 3 Troubleshooting 209 7 Service and maintenance 211 7 1 Safety regulations 211 7 2 Tests during inspections and after tripping 212 7 3 Maintenance i...

Страница 8: ...Door covers 242 9 3 3 Terminal cover 243 10 Circuit diagrams 245 10 1 Circuit diagrams of accessories 252 10 1 1 Tripped signaling switch S24 252 10 1 2 Spring charging motor MO spring charged signaling switch S21 remote reset magnet RR 253 10 1 3 Tripped signaling switch toggle operating mechanism MCCB TAS 253 10 1 4 Leading changeover switch S26 254 10 1 5 CT for grounded transformer star point ...

Страница 9: ... molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 7 B ESD guidelines 277 B 1 Electrostatic sensitive devices ESD 277 C List of abbreviations 279 C 1 Table of abbreviations 279 Index 283 ...

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Страница 11: ...ker ACB and the 3VA27 molded case circuit breaker MCCB Scope of validity of this document This manual is a reference manual for technical information that users will need to configure connect and operate the 3WL10 3VA27 circuit breaker and its accessories 3VW8 9 1 2 Product specific information Target readers of this documentation The information contained in this manual is provided for the benefi...

Страница 12: ...https support industry siemens com cs ww en view 109748621 System Manual 3VA Molded Case Circuit Breaker Communication https support industry siemens com cs ww en view 98746267 Operating Instructions 3WL10 Air Circuit Breakers Fixed Mounted https support industry siemens com cs ww en view 109748199 Operating Instructions 3WL10 Air Circuit Breakers Withdrawable https support industry siemens com cs...

Страница 13: ...Only qualified personnel who have been instructed in the warnings and safety instructions and the maintenance rules must ever work on the device Successful and safe functioning of this device depends on proper installation operation handling and maintenance WARNING Improper installation commissioning and maintenance Safe operation of the circuit breaker can only be ensured if it is installed commi...

Страница 14: ... circuits and devices and systems according to the safety standards Training instruction in the proper care and use of protective equipment in accordance with established safety procedures Training in first aid Ambient conditions The circuit breakers are designed to be operated in enclosed rooms in which the operating conditions are not affected by dust or corrosive vapors gases Suitable enclosure...

Страница 15: ...pply the latest updates may increase customer s exposure to cyber threats To stay informed about product updates subscribe to the Siemens Industrial Security RSS Feed at http www siemens com industrialsecurity http www siemens com industrialsecurity Open Source Software This product also includes open source software developed by third parties You can find the open source software included in this...

Страница 16: ... the moisture label Blue Moisture tight packaging is effective Pink Moisture tight packaging is ineffective Inspect the circuit breaker for corrosion damage and report the damage to the carrier Replace or dry the desiccants and weld the plastic film Inspect the packaging at regular intervals Handling NOTICE Damage due to incorrect setting down The circuit breaker and the guide frame must not be se...

Страница 17: ...unking systems can be constructed more compactly In the event of a short circuit the molded case circuit breaker substantially reduces the magnitude of the let through currents i e reduces the load reaching downstream equipment less thermal load lower dynamic forces The let through energy is also significantly reduced 3VA molded case circuit breakers are designed to be current limiting IEC EN 6094...

Страница 18: ...display for additional settings and functions for enhanced requirements communication and metering function Variable and versatile connections with identical dimensions 3WL10 3VA27 Options for integration into switchboards complying with IEC 61439 2 Optional expansion with a wide range of internal and external accessories Integrated communication concept together with the other 3VA molded case cir...

Страница 19: ...high Icw value up to 50kA 1s and an Icu value up to 66kA 440V 3VA27 molded case circuit breaker The 3VA27 molded case circuit breaker is a current limiting circuit breaker with IEC certification and is an addition to the existing 3VA IEC portfolio It has the following characteristics Frame size 1600 A with a rated current In of 800 A to 1600 A Choice of two designs as a toggle operating mechanism ...

Страница 20: ...ed case circuit breaker 3VA27 Compact dimensions Rated current In 630 800 1000 1250 A 800 1000 1250 1600 A Breaking capacity classes 42 kA 55 kA and 66 kA Icu at 440 V 55 kA 85 kA and 110 kA Icu at 415 V Fixed mounted Withdrawable Toggle operating mechanism Stored energy operating mechanism Electronic trip units 3 series 6 series 3 series 6 series Direct communication link to the device without an...

Страница 21: ...derable amount of space to be saved in the switchboard For example due to the possibility of mounting the bar flat terminals directly on the front and the positioning the device on the rear in wall mounted configuration which is unusual for an air circuit breaker The 3VA27 molded case circuit breakers provide a compact solution up to 1600 A A spring charging motor and or a metering function can op...

Страница 22: ...osts and improving productivity in industrial plants buildings and infrastructure projects to be achieved Simultaneous use of up to two different bus systems such as PROFIBUS PROFINET Modbus TCP or Modbus RTU Fast and reliable parameterization Timely information and response can prevent plant stoppages Effective diagnostics management Measured values are the basis for efficient load management for...

Страница 23: ...s shopping malls hospitals universi ties schools Airports train stations sports stadiums ports exhibition sites Industrial parks warehouses logistics centers Paper industry computer centers oil gas industry foodstuffs industry Presses galvaniz ing lines rolling mills grinding mills agitators and mix ers production lines The circuit breaker is used for the following functions Line protection Genera...

Страница 24: ...uit breakers 22 Manual 10 2018 L1V30499596002 01 For this purpose the focus is on the following applications of the circuit breaker Main distribution board Industrial distribution systems Distribution for infrastructure applications e g secondary substations Applications in machine construction ...

Страница 25: ...tection ST Between these you have extensive possibilities for fine adjustment of the values in respect of current response thresholds delay times and for switching between characteristics such as fixed delay time and inverse time I t characteristic For maximum requirements the instantaneous short circuit protection INST can additionally be disabled to temporarily deactivate or increase the current...

Страница 26: ...owing requirements System wide high selectivity with a rated current differential of 1 2 5 up to the miniature circuit breaker Selectivity combined with effective current limiting and high breaking capacity Cost effective design configuring of selective power distribution systems Technically these requirements of the molded case circuit breakers are met as follows Dynamically opening contact syste...

Страница 27: ...oring is possible Depending on the type the electronic trip units provide the following protection functions Overload protection LT Long Time Adjustable in steps of 40 to 100 of the rated current In of the circuit breaker Short time delayed short circuit protection ST Short Time For time selective response in case of a short circuit Instantaneous short circuit protection INST Protection against re...

Страница 28: ... e g contactor and motor is lowered less thermal load lower dynamic forces However the 3VA27 also trips instantaneously above the max Ii 15xIn The 3WL10 however is designed to prevent automatic lifting of the contacts above the max Ii to avoid unwanted tripping of the device That makes it more robust against high inrush currents and false tripping on motor starting The starting function suspends t...

Страница 29: ...e 3VA27 molded case circuit breaker or 3WL10 air circuit breaker as an MSP for starter combinations also combined with soft starters or frequency converters The 3VA2 molded case circuit breaker or 3WL10 air circuit breaker as a motor starter protector All 3VA27 molded case circuit breakers and 3WL10 air circuit breakers are suitable for use with IE3 motors and in future also with IE4 motors ...

Страница 30: ...ating plug L OFF The overload protection is deactivated Deactivation of the instantaneous short circuit protection S Short time delayed short circuit protection ETU650 LSI ETU660 LSIG S Protection function can be ena bled disabled Selection and parameterization of the setting options current and time for instantaneous short circuit protection for the switch on phase inrush adaptation according to ...

Страница 31: ...witch on phase inrush adaptation according to the application Instantaneous short circuit protection INST ETU650 LSI ETU660 LSIG INST Switchover to alternative operating val ues with instantaneous short circuit current during the switch on phase in rush adaptation start up function Default value OFF Switch over to ON Setting range for duration t during the switch on phase 0 10 to 30 s in steps of ...

Страница 32: ...trip units of the 3VA27 3WL10 motor starter protectors The trip class Tc itself cannot be set directly on the ETU This can be calculated by conversion of the delay time tr for the I2t characteristic to the tripping time Tp Delay time to be set tr Corresponds to tripping time Tp CLASS Tc Range 11 5 s 8 s 10A 2 s Tp 10 s 10 4 s Tp 10 s 10E 5 s Tp 10 s 24 5 s 17 s 20 6 s Tp 20 s 20E 10 s Tp 20 s 36 s...

Страница 33: ... via toggle optionally expandable with manual operators direct operators and door mounted rotary operators Stored energy operating mechanism Front operation via a pushbutton with an integrated spring energy store as for the air circuit breakers for optional integration of spring charging motors that charge the spring energy store Mounting versions of 3WL10 and 3VA27 circuit breakers The following ...

Страница 34: ...the poles is contained in a separate plastic enclosure and consists of the interrupting contact system and a current transformer Main components of the 3VA27 3WL10 circuit breakers Area with front rear connections Auxiliary conductor terminal system Electronic trip unit ETU Switch position indicator contacts OPEN CLOSED Mechanical ON pushbutton Mechanical OFF pushbutton Status indicator of spring ...

Страница 35: ...circuit breaker is inserted into the guide frame the main circuit connection is established In the retracted position built in shutters ensure safe touch protection of the main circuit connections In this way the circuit breaker can be removed from the guide frame without disassembly work and removed from the control panel if required The withdrawable breaker has the following advantages Fast repl...

Страница 36: ...omponents of the guide frame Mounting location of connection technology Racking handle Pushbutton for unlocking racking Push before Operating to rack the circuit breaker positions using the racking handle Hole for inserting the racking handle Circuit breaker position indicator Racking rail Lower shutter Upper shutter Locking lever ...

Страница 37: ...ly to the auxiliary circuit This allows the functionality of the auxiliary circuit and all of its components auxiliary switches auxiliary releases communication etc to be tested when the main circuit is open DISCON The circuit breaker is not connected to the main circuit nor to the auxiliary circuit In the DISCON DISCONNECT position it can be removed from the guide frame The circuit breaker positi...

Страница 38: ... 55 66 Icu 500 525 V AC kA 42 50 50 Icu 690 V AC kA 42 50 Rated service short circuit breaking capacity AC Ics 415 440 V AC kA 42 50 50 Ics 500 525 V AC kA 42 50 50 Ics 690 V AC kA 42 50 Rated short circuit making capacity AC Icm 415 440 V AC kA 88 121 145 Icm 500 525 V AC kA 88 105 105 Icm 690 V AC kA 88 105 Rated short time withstand current Icw 1 s kA 42 42 50 Icw 3 s kA 24 24 36 Break time on ...

Страница 39: ...Operating cycles h 30 30 Dimensions and weight Dimensions Fixed mounted breaker H with COM mm 291 H without terminal cover without COM mm 268 D mm 183 W 3 pole mm 2141 4 pole mm 2841 Withdrawable breaker H mm 363 5 D mm 271 W 3 pole mm 278 4 pole mm 348 Weight with ETU and cur rent sensor Fixed mounted breaker 3 pole kg 14 4 pole kg 16 Withdrawable breaker 3 pole kg 38 4 pole kg 43 1 including bot...

Страница 40: ... 85 100 500 V kA 36 55 63 690 V kA 25 36 37 Rated short circuit making capacity Icm 220 230 V kA 220 330 440 380 400 415 V kA 121 187 242 440 V kA 121 187 220 500 V kA 75 6 121 187 690 V kA 52 5 75 6 105 Rated short time withstand current Icw 1 s kA 20 Utilization category IEC 60947 2 B Disconnector feature Reference standard IEC 60947 2 Trip unit ETU 3 series LI LSI LSIG 6 series LSI LSIG Interch...

Страница 41: ...sm mm 171 Stored energy spring me chanism mm 183 W 3 pole mm 210 4 pole mm 280 D mm 225 Dimensions of withdrawable version H mm 363 5 D Toggle operating mecha nism mm 271 Stored energy spring me chanism mm 271 W 3 pole mm 278 4 pole mm 348 D mm 325 Weights Weight Fixed 3P manual kg 9 7 4P manual kg 12 5 Withdrawable 3P manual kg 29 7 4P manual kg 39 6 Fixed 3P motorizab le kg 11 4P motorizab le kg...

Страница 42: ...l voltage Ue that corresponds to the value of the one second rated short time current Icw The non automatic air circuit breaker is sometimes also called a load interrupter switch because it can switch overcurrents 3WL10 non automatic air circuit breakers 3WL10 non automatic air circuit breakers are only available in classes N and S Number of poles 3 4 Rated operational voltage Ue AC 50 60 Hz V 690...

Страница 43: ...22 Ie A 800 1000 1250 1600 AC23 Ie A 800 1000 1250 1250 Rated operational voltage Ue AC 50 60 Hz V 690 DC V 750 Rated insulation voltage Ui V 1000 Rated impulse withstand voltage Uimp kV 8 Rated short circuit making capacity Icm disconnector only kA 40 with up stream circuit brea ker kA 440 Rated short time current Icw 1 sec kA 20 Reference standard IEC 60947 3 Endurance Mechanical endurance No of...

Страница 44: ...nted breaker 3 pole W mm 210 4 pole W mm 280 T toggle opera ting mecha nism mm 225 T stored energy operating mechanism mm 183 H mm 296 Weight Toggle opera ting mecha nism Fixed mounted breaker 3P kg 9 7 4P kg 12 5 Withdrawable breaker 3P kg 29 7 4P kg 39 6 Stored energy operating me chanism Fixed mounted breaker 3P kg 11 4P kg 14 Withdrawable breaker 3P kg 32 4P kg 42 6 ...

Страница 45: ...cation Each circuit breaker can be clearly identified from various labels and plates attached to the unit Circuit breaker labeling Each circuit breaker has labels displaying all the important technical information enabling unique identification Key electrical data Label for installed internal accessories Label of circuit breaker data Label for guide frame ...

Страница 46: ...is attached in a clearly visible location to every circuit breaker This code can be scanned with a smartphone or a tablet PC A data sheet of the product is provided in this way This does not include the accessories The accessories are stated on the label on the side of the circuit breaker For the full range of QR code functions use the Industry Support app supplied free of charge by Siemens App St...

Страница 47: ... breaker displays the following information Non automatic air circuit breaker Circuit breaker IEC breaking capacity values at various voltages Frequency Utilization category Insulation data Supported standards Production site identification number Maximum rated operational current Icw Rated short time withstand current Icc Rated conditional short circuit current Rated operational voltage ...

Страница 48: ... guide frame is stated separately on its label even if it is part of the withdrawable breaker version 2 8 Electronic trip unit ETU As a protection device the circuit breaker has the task of protecting installations and clearing electrical faults occurring in the system A trip unit detects whether a fault occurs by comparing the protection parameters set in it with the measured values The circuit b...

Страница 49: ...rs with rotary coding switch Setting the parameters with push buttons and reading them off the display and communication Fine adjustment of the parameters Reading off the measured values Enhanced protection function 2nd parameter set set A B Making current release MCR DAS Arc fault mitigation Ground fault protection in the star point Phase unbalance Further functions in conjunction with metering f...

Страница 50: ...the 3WL and 3VA family Operation in the temperature range from 25 C to 70 C ETU 6 series LI LSI LSIG protection function Adjustable neutral protection Display and modularly expandable functio nality Fine adjustment for increased selectivity requirements Communication capable Metering function Basic Advanced Enhanced protection functions for tailored applications specific network requirements Resid...

Страница 51: ...cuit The other switching devices in the circuit remain closed This minimizes the effects of a fault in terms of its duration selectivity and the area affected Short circuit location Selectivity tables for the 3WL10 are available on the Internet for simple implementation of selective trip combinations see Selectivity tables https support industry siemens com cs ww en view 109748621 The parameters r...

Страница 52: ...stantaneous short circuit releases can normally be set such that if a short circuit occurs behind one of the circuit breakers as seen from the other circuit breaker only the circuit breaker nearest to the fault will trip If the short circuit currents are approximately the same at the points where the circuit breakers are mounted the time grading of the operating currents of the short circuit relea...

Страница 53: ... selectivity principles For protection requirements that apply more to the higher level and parts of the circuit near to a transformer devices must be selected that are better capable of time selectivity on a short circuit i e use of a 3WL10 For protection requirements applying to the outgoing side and parts of the circuit near to the final load devices are selected that are better at energy selec...

Страница 54: ...n the ETU used the number of rotary coding switches and LEDs can vary Active LED ACT DIP switch Rotary coding switch with LED Test and info button Connection socket for test devices TD310 TD410 and TD420 See also Entering parameters Page 197 Alarms Page 203 Display elements ETUs of the 3 series ETU readiness can be indicated via the LED ACT Alarms and trips are indicated via the LEDs in the area o...

Страница 55: ...Enables test tripping in conjunction with a test device or with another power source Also display of the last reason for tripping after a fault by lighting up the LED for this purpose This is enabled by a button cell inside the ETU without any external power supply 2 8 3 2 Electronic trip units of the 6 series Active LED ACT Warning displays Operating keys including test and info button Connection...

Страница 56: ...r power source and indication of the last reason for tripping after a fault by short activation of the display This is enabled by a button cell inside the ETU without any external power supply Menus and menu structure ETUs of the 6 series The display shows the main menu on the start screen Display of information faults and warnings The symbols stand for the following areas Symbol Menu Symbol Menu ...

Страница 57: ... common distribution board systems protect any power distribution system from overcurrents and have settable overload and short circuit releases Depending on the type the ETU can monitor the energy consumption and signal anomalies via alarms The modular expandable functions of the ETUs of the 6 series can replace external devices such as voltage transformers and measuring devices for efficient loa...

Страница 58: ...nhanced protection functions Making current release MCR 1 Current unbalance protection I NBA DAS protection arc fault mitigation mode Ground fault return Gret 1 2nd parameter set set A B With metering function MF Advanced Residual current protection Rc 2 Direct short time protection DST Voltage unbalance protection V NBA Undervoltage protection Vu Overvoltage protection Vo Underfrequency protectio...

Страница 59: ...I ETU360 LSIG ETU650 LSI ETU660 LSIG Rotary coding switch Display LCD With Breaker Connect mo dule COM040 PROFIBUS COM041 PROFINET COM042 Modbus RTU COM043 Modbus TCP IOM040 configurable digital I O module IOM300 configurable digital I O module Enabled functionalities Energy monitoring and management with COM MF with COM MF Remote parameterization with COM with COM Remote switching and control syn...

Страница 60: ...n functions With gateway device TD410 TD420 on ETU front interface Read write maintenance info contact wear history time LCD COM LCD COM Record of a measuring interval me mory and min max registers in ETU LCD COM LCD COM Diagnostic report Enhanced settings TD410 TD420 TD410 TD420 or LCD Watchdog steady electronics or maglatch or CT failure surveillance trip enable Overtemperature trip enable Therm...

Страница 61: ... one of the conductors to be protected exceeds the set tripping current Isd for the duration of the set delay time tsd The ST release provides characteristics with inverse time curve I2t or a time delay with a definite time tripping characteristic tsd const It can also be disabled Instantaneous short circuit protection INST The instantaneous short circuit protection INST is a protection function t...

Страница 62: ...return Gret Currents in the grounding conductor of the transformer star point can be directly measured with high accuracy using an external toroidal core transformer and evaluated with the ETU660 LSIG Direct measurement of ground faults with a toroidal core transformer is an alternative to the vector sum calculation of the GF protection function The ETU requires an external power supply for the fu...

Страница 63: ...ed MCR making current release Statistically most short circuits and faults occur when the power distribution is connected or reconnected after commissioning or maintenance connection to existing short circuit The making current release MCR for early detection of short circuits increases short circuit protection at the moment the circuit breaker is closed by enabling definition of individual operat...

Страница 64: ... direction 2nd parameter set set A B The ETUs of the 6 series can store and manage a complete second set of alternative parameters for the protection functions It is possible to switch to this second set of protection parameters set B with an external command or input It then replaces the default parameter set A The command to switch over can be issued if the circumstances of the power system chan...

Страница 65: ... the circuit breaker becomes a central control and protection element in the installation The enhanced protection functions can be set to the operating modes closed only alarm or open With open contacts too signals can be provided if the voltage is sensed on the line side to detect anomalies or faults in the voltage applied before the main contacts of the circuit breaker are closed Reverse active ...

Страница 66: ...f the phase to phase voltages The deviation of the operating value from the mean value is stated as a percentage Underfrequency protection fu Underfrequency protection responds with a definable definite time delay tu f as soon as the line frequency falls below the operating value fu The operating value is described as factor 1 of the line frequency settable to 50 Hz or 60 Hz In this way the distri...

Страница 67: ...ction responds with a definable definite time delay to U as soon as a phase to phase voltage Uph Uph rises above the operating value Uo The operating value is described as factor 1 of the rated voltage Un of the power system The rated voltage Un can be variably set from 100 V to 690 V In this way the distribution board can be protected from impermissible deviations in the line voltage ...

Страница 68: ...diagram shows the tripping characteristics of the circuit breaker Setting value of the long time delayed protection Delay time of the long time delayed protection Switchover of the overload characteristic I4t and VI SI EI Setting value of the short time delayed protection I2t characteristic ON OFF of the short time delayed protection Delay time of the short time delayed protection Setting value of...

Страница 69: ...erating current of the short time delayed short circuit protection Isd 1 0 10 x In Limitation of the short circuit range in which the current has to be interrupted as quickly as possible but with a defined time delay Isd 8 x In 8000 A at In 1000 A Range of the short time delay as of 8000 A tsd Delay time of the short time delayed short circuit protection Use for time selectivi ty Time delay of tsd...

Страница 70: ...mple tg Delay time until disconnec tion Line protection Tripping after a time of tg 0 1 s See also Simaris design http www siemens com simaris SIMARIS design The Siemens SIMARIS design software tool is a fast simple and reliable tool for calculating and dimensioning networks in accordance with the valid rules You will find more information on SIMARIS design in the Internet http www siemens com sim...

Страница 71: ... se during closure Monitoring of direction of power flow and power factor determination with metering function MF 2nd parameter set Equipment ETU320 LI ETU350 LSI ETU360 LSIG ETU650 LSI ETU660 LSIG Display LCD Setting with rotary coding switch Setting via control buttons next to the ETU display Data display via control buttons next to the ETU display Metering function as option MF Basic Metering f...

Страница 72: ... is suitable for installations for which further development is planned or in cases in which the power export could be temporarily limited e g mobile generator set The overload protection function LT can be deactivated if the L off rating plug version is used in conjunction with the ETU of the 6 series For residual current protection with a suitable summation current transformer there are rating p...

Страница 73: ...enhanced protection functions that are based on the variables voltage and power Power supply of the ETU from the busbar voltage for line voltages above 80 V phase to phase and therefore also activation of further functions such as powering the external ground fault neutral transformer Gret or the making current release without an external power source and for example measurement and activation of ...

Страница 74: ... value 0 75 s Tolerance1 10 I 6 x In 20 I 6 x In Overload pre alarm 50 to 100 x Ir in steps of 1 Default value 90 50 to 100 x Ir in steps of 1 Default value 90 50 to 100 x Ir in steps of 1 Default value 90 S ST Short time delayed short circuit protection Protection function can be enab led disabled Setting range of operating value Isd In x 1 1 5 2 2 5 3 4 6 8 10 Default value OFF Tolerance1 7 I 6 ...

Страница 75: ...es an external auxilia ry power supply of the ETU 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 1 Default value 0 1 Tolerance1 7 Setting range for delay time tg fixed t k 0 1 0 2 0 4 0 6 0 8 s Tolerance1 The better value out of 10 or 40 ms or 50 ms with tg instantaneous Setting range for delay time tg at I t reference point 2 x Ig 0 1 0 2 0 4 0 6 0 8 s Default value 0 1 I t Func tions Frequency adaptation Setti...

Страница 76: ...ly inverse EI α 2 b 35 2 Default value I t Setting range for delay time tr for characteristic IEC 60255 151 reference point 6 x In 0 75 to 5 s in steps of 0 25 Default value 5 s Tolerance1 10 I 6 x In 20 I 6 x In 0 75 to 5 s in steps of 0 25 Default value 5 s Tolerance1 10 I 6 x In 20 I 6 x In Thermal memory can be enabled disabled Overload pre alarm 50 to 100 x Ir in steps of 1 Default value 90 5...

Страница 77: ...antaneous short circuit current during the switch on phase inrush adaptation for tripping characteristic t k fixed possible Default value OFF Default value OFF Setting range of the switch on phase inrush adaptation 0 10 to 30 s in steps of 0 01 Default value 0 1 Tolerance1 30 ms 0 10 to 30 s in steps of 0 01 Default value 0 1 Tolerance1 30 ms Setting range Ii In x during the switch on phase inrush...

Страница 78: ...ect measu rement Default set Not installed Protection function can be selected Rc residual current protection with summation current transformer Gret ground fault return protection transformer in the star point Ground return CT Rc CT necessary Rc residual current protection with summation current transformer Alternative to GF and G_ret Default value OFF Possible with current sensor Rc MF advanced ...

Страница 79: ... Setting range Inba phase current unbalance 2 to 90 in steps of 1 Default value 50 2 to 90 in steps of 1 Default value 50 Setting range of the delay time tnba for phase current unbalance 0 50 to 60 s in steps of 0 5 Default value 10 s 0 50 to 60 s in steps of 0 5 Default value 10 s Enabling disabling of tripping on phase current unbalance 1 ETU powered in at least 2 phases or self powered with aux...

Страница 80: ...ckward direction BW 0 6 to 10 in steps of 0 1 Default value 2 0 6 to 10 in steps of 0 1 Default value 10 Settings DST phase difference angle 3 6 7 2 10 8 14 5 18 2 22 0 25 9 30 34 2 38 7 43 4 48 6 54 3 61 0 69 6 Default value 3 6 Definition of direction of power flow Bottom top top bottom Default value top bottom V NBA Phase voltage unbalance V NBA Protection function can be enabled disabled Setti...

Страница 81: ... 0 01 Default value 3 s Enabling disabling of tripping on underfre quency protection fo Overfrequency protection fo Protection function can be enabled disabled Setting range for overfrequency protection fo fn x 1 001 to 1 1 in steps of 0 001 Default value 1 1 1 001 to 1 1 in steps of 0 001 Default value 1 1 Setting range of the delay time for overfre quency protection 3 to 300 s in steps of 0 01 D...

Страница 82: ...PAL response threshold overload current In pal 2 In x 0 1 to 10 in steps of 0 01 Default value 3 0 1 to 10 in steps of 0 01 Default value 3 Crossing the response threshold rated current In pal 1 Direction from bottom or from top Default value bottom top Default value bottom top Crossing the response threshold rated current In pal 2 Direction from bottom or from top Default value bottom top Default...

Страница 83: ...asured values that are based exclusively on status changes and current signals In addition to the visual display of maintenance signals trip reasons overload measurements etc indicated by LEDs on the ETU a number of measured values such as trip history or maintenance information can be read out on the ETUs of the 3 series too via the TD410 420 test devices on the front interface of the ETU Measure...

Страница 84: ...f the circuit breaker Temperature T Pre alarm and alarm due to overheating 1 If auxiliary power supply is connected Metering functions of the ETUs of the 6 series The electronic trip units of the 6 series can be expanded with the metering functions MF Basic or MF Advanced These measure the voltage between the phases with internal voltage tap optionally on the incoming or outgoing feeder side i e i...

Страница 85: ...s Precision Metering module MF required Active energy kWh Ep total Ep drawn Ep consumed 2 Reactive energy kvarh Eq total Eq drawn Eq consumed 2 Apparent energy kVAh Es total 2 Measuring interval memory of the individual parameters for each interval with a time stamp Measured value Clocking Monitoring period Metering module MF required Current smallest and largest A Imin Imax Fixed or syn chronizab...

Страница 86: ... Type of protection function fault values and time stamp Information on the last 200 events Type of event time stamp Number of mechanical switching operations 1 No Can be assigned to alarm Total number of trips No Operating hours counter h Contact wear Pre alarm 80 Alarm 100 Date of maintenance performed Last Direction to perform necessary maintenance Key data Type of circuit breaker assigned name...

Страница 87: ...t environment real test tripping is generated In this way the software helps to find the optimized parameter settings for the user s application Parameters Currents A L1 L2 L3 Ne Ig Voltages V U12 U23 U31 Sampling rate Hz 1200 2400 4800 9600 Max recording duration s 16 Recording stop delay s 0 to 10 Number of registers No 2 independent 2 9 Communication The circuit breaker can be integrated into a...

Страница 88: ...application but it can also have its own independent information system Siemens considers the following four scenarios to be potential applications Totally Integrated Automation TIA for production facilities Total Building Solution TBS for non residential buildings Totally Integrated Power TIP as the power distribution system for the two applications above Energy management with powermanager More ...

Страница 89: ...tegration into power monitoring systems with the modular metering functions MF Basic or MF Advanced according to IEC 61557 1 Simple integration into plant monitoring systems for monitoring Status Measured values Alarms and warnings Diagnostics Maintenance Significant additional benefits for the switchboard due to the possibility of connecting external input and output modules to the 3WL10 air circ...

Страница 90: ...it can be integrated into the communication environment with two different protocols For example simultaneous connection of a fieldbus for automation or remote control applications incl parameterization and remote switching and Modbus TCP Ethernet communication link for communicating measured values for efficient and safe power monitoring For the remote control switch of the 3VA27 you require the ...

Страница 91: ...ager and TIA You will find further information on the communication link in the 3WL10 communication manual and in the 3VA communication manual see Chapter Reference documents Page 10 in the Modbus Map in the SIOS Portal https support industry siemens com cs ww en view 109749079 2 10 Accessories overview The 3WL10 3VA27 circuit breaker can be adapted to the most varied application requirements with...

Страница 92: ...ocking and interlocking for breaker with stored energy operating mechanism Spring charging motor and accessories Auxiliary and alarm switches auxiliary releases Interlocking for fixed mounted circuit breakers Electronic trip units Handle blocking device Manual rotary operators Connection technology for fixed mounted circuit breakers Locks for guide frame Communication modules Position signaling sw...

Страница 93: ...sories for connection and insulation Undervoltage release UVR Shunt release ST Shunt release ST2 Closing coil CC Spring charging motor MO Ready to close signaling switch RTC Remote reset magnet RR Spring charged signaling switch S21 Position signaling switch PSS for guide frame Tripped signaling switch TAS signals the tripped position Auxiliary switch AUX1 AUX2 Auxiliary switch AUX3 AUX4 Tripped s...

Страница 94: ...ary opera tor incl locking devices External digital I O module IOM300 DSP800 display External current transformer for N conductor External CT for grounding conductors of the main power supply GF CT Summation current transfor mer Rc CT Protective covers to prevent unintended mechanical ope ration Locking device OFF positi on Ronis lock Locking device OFF positi on Ronis lock for circuit breaker wit...

Страница 95: ...nd insulation 3 1 1 Insulating measures Low cover Extended cover Phase barrier 200 mm Phase barrier 100 mm Application examples Terminal cover On fixed mounted circuit breakers the cover is installed over the termination area and reduces the risk of direct contact with live parts The cover is available in two versions Low cover of front main terminal Extended cover of front main terminal ...

Страница 96: ...hases of the fixed mounted breaker version Note You will find connections that necessitate mandatory insulation measures in Chapter Isolating distances and insulating equipment Page 156 In these cases the measures are contained in the scope of delivery by default Rear connections of the fixed mounted breaker version and the entire withdrawable breaker do not require insulation measures On the fixe...

Страница 97: ...r circuit breakers Manual 10 2018 L1V30499596002 01 95 3 1 2 Connections of the fixed breaker version Front terminals for main circuit connection Front connection bars extended Circular conductor terminal for Cu Al cable Horizontally vertically orientable rear connection Front connection bars broadened ...

Страница 98: ... not delivered preassembled on the circuit breaker Circular conductor terminal for Cu Al cable The cable terminals CuAl 4 x 240 mm2 are mounted on the front terminals They project beyond the circuit breaker contour A total of up to four cables with a maximum cross section of 240 mm2 can be connected to the cable terminal CuAl 4 x240 mm2 Horizontally vertically orientable rear connections The rear ...

Страница 99: ...ircuit breakers Manual 10 2018 L1V30499596002 01 97 3 1 3 Connections of the withdrawable breaker version Horizontally vertically orientable rear terminal for main circuit connection Copper aluminum cable connection bar Front extended terminal Front connection bars broadened Rear connection bars broadened ...

Страница 100: ... with a maximum cross section of 240 mm2 can be connected to the cable terminal CuAl 4 x240 mm2 Extended front connection The extended front connection for the withdrawable breaker is an alternative to the rear connection It enables the connections to be accessed from the front It is mounted directly on the guide frame and projects beyond the guide frame contour Front connection bars broadened The...

Страница 101: ...eakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 99 3 2 Electromechanical accessories 3 2 1 Auxiliary releases for 3VA27 3WL10 Closing coil CC for breaker with stored energy operating mechanism only Undervoltage release UVR shunt release ST2 Shunt release ST ...

Страница 102: ... remote tripping Interlocking during closure Checking the voltage in the primary and secondary circuits The undervoltage release is powered via the auxiliary conductor terminal system Note The circuit breaker can be reclosed at a coil supply voltage of 85 to 110 Un Suitable for continuous operation 100 ON time Technical specifications AC DC Rated control supply voltage Us 24 V 30 V 48 V 60 V 110 t...

Страница 103: ... Opening breaker position OPEN is always possible The coils work with a current pulse 100 ms or with constant power input 100 ON time in Note If the opening command was issued with a shunt release the circuit breaker can be reclosed with a closing command after the shunt release has been switched off followed by a wait time 30 ms The opening command always has priority over the closing signal Tech...

Страница 104: ...ual 10 2018 L1V30499596002 01 3 2 2 Accessories for circuit breakers 3VA27 3WL10 breakers with stored energy operating mechanism Closing coil CC Page 99 Undervoltage release UVR shunt release ST2 Page 99 Shunt release ST2 Page 99 Remote reset magnet RR Spring charging motor MO Mechanical operating cycles counter MOC ...

Страница 105: ...applied that the spring charging motor requires to start charging Charging the spring energy store then takes approx 7 s Note The motor is always supplied with the spring charged signaling switch S21 which signals the state of the springs The use of the spring charging motor does not reduce the life the operating cycles and the frequency of operation of the whole product Remote reset magnet RR Wit...

Страница 106: ...signaling option It displays the number of mechanical switching operations performed by the circuit breaker directly on the front of the circuit breaker Note Because the number of operating cycles performed influences the maintenance intervals the mechanical operating cycles counter MOC can provide the necessary basis for defining them You will find information on maintenance in Chapter Service an...

Страница 107: ...uxiliary alarm and signaling switches Position signaling switch PSS for guide frame Ready to close signaling switch RTC S20 Auxiliary switch AUX1 AUX2 Auxiliary switch AUX3 AUX4 Tripped signaling switch via auxiliary release S25 Tripped signaling switch TAS Leading changeover switch S26 Tripped signaling switch S24 tripped by the electronic trip units ...

Страница 108: ...isconnected Isolated The position signaling switches are always installed in the guide frame However the user can modify 24 V digital signals in the device configuration to meet the requirements for small loads e g for PLC connection Configuration Position auxiliary contacts PSS 6 auxiliary contacts Standard contact 400 V Contact for digital signal 24 V Standard contact Contact for digital signal ...

Страница 109: ...it Tripping of the ETU by the residual current module Rc Tripping of the shunt or undervoltage release Mechanical tripping by PUSH TO TRIP pushbutton Mechanical tripped signal RESET button The circuit breaker can only be reclosed once the mechanical signaling button for ETU tripped reset has been operated or the circuit breaker has been reset to its normal operating position manually or by means o...

Страница 110: ...e with an expansion by 15 external auxiliary switches with AUX 15CO You will find the necessary modification of the circuit breaker side wall in Chapter External accessories Page 117 If both auxiliary contact modules are installed up to 19 auxiliary contacts CLOSED OPEN are available Configuration AUX 4CO 2CO 2CO 4 auxiliary contacts internal AUX 15CO Additional external 15 auxiliary contacts Stan...

Страница 111: ...sφ 0 7 Mechanical tripped signal RESET button The circuit breaker can only be reclosed once the mechanical signaling button for ETU tripped reset has been operated or the circuit breaker has been reset to its normal operating position manually or by means of the remote reset magnet RR Tripped signaling switch via auxiliary release S25 The tripped signaling switch via auxiliary release S25 signals ...

Страница 112: ...pe Changeover contact Changeover contact Smallest load 100 mA at 24 V 1 mA at 5 V Breaking capacity DC 24 V 0 1 A 250 V 0 5 A at 0 ms 0 2 A at 10 ms AC 250 V 3 A at cosφ 0 7 Spring charged signaling switch S21 The spring charged signaling switch S21 signals the state of the operator closing springs of the circuit breaker on the auxiliary conductor terminal system This signaling switch is also supp...

Страница 113: ... O modules Position signaling switch of the circuit breaker in the guide frame COM PSS not shown in the figure Breaker Connect module external power supply Communication modules Digital I O module IOM040 Ready to close signaling switch for communication COM RTC only available for the version with a spring energy store Actuation module for remote operation COM ACT only available for the version wit...

Страница 114: ...power externally at the auxiliary terminal block auxiliary power supply Note To provide the functionality of the circuit breaker as a protective device the ETU is powered via an internal transformer in the operating state when the main contacts are closed When the contacts are open the ETU can optionally be powered via the metering function MF Advanced and the internal voltage tap The Breaker Conn...

Страница 115: ...mens Online Support https support industry siemens com cs document 109750691 3wl10 kommunikations C3 BCbersicht dti 0 lc en WW Digital I O module IOM040 These modules are suitable for all electronic trip units of the 6 series The digital I O modules IOM040 provide two input and two output contacts for control and remote signaling of alarms and tripping of the circuit breaker They can be used for t...

Страница 116: ...s possible to operate the circuit breaker through the panel door without opening the door The door mounted rotary operator is only available for 3VA27 circuit breakers with toggle Device for mounting a cylinder lock Device for up to three padlocks on the breaker Button for the trip unit PUSH TO TRIP Handle Device for up to three padlocks Figure 3 1 The door interlocking pin is not shown It is loca...

Страница 117: ... be opened with the operator in position ON so that maintenance can be carried out for example Locking The circuit breaker can be locked via the door mounted rotary operator in three different ways 1 On the handle If the circuit breaker on the handle is locked with padlocks up to three 5 7 mm diameter the door cannot be opened when the circuit breaker is open either 2 On the rotary operator For lo...

Страница 118: ...ylinder lock Device for up to 3 padlocks on the breaker Defeat function of the door interlock Handle with device for up to 3 padlocks You can override the door interlock by a deliberate action In this way you can also open the door in the ON I position of the molded case circuit breaker Door interlock The door interlock of the door mounted rotary operator locks the door as soon as the door mounted...

Страница 119: ... With cylinder lock on the rotary operator The circuit breaker can also be prevented from closing with a key and an optionally installable cylinder lock 3 5 External accessories 3 5 1 External digital I O module IOM300 The external digital I O module IOM300 provides 11 input and 10 output contacts for control and remote signaling of alarms and tripping of the circuit breaker It is suitable both fo...

Страница 120: ...it breakers of the 3VA2 series The 3WL10 3VA27 circuit breaker can be integrated into the communication via an additional Ethernet switch In this way up to three circuit breakers can be visualized on the control panel door with content optimized for the available space and automatically scaled The start page of the DSP800 displays the status and maximum current of all circuit breakers All the deta...

Страница 121: ...details see Section Parameters of the trip units Page 72 3 5 3 1 Rogowski CT solo external neutral The optional external current transformer for N conductor is only for three pole circuit breakers It enables protection of the neutral conductor from overload and short circuit by the ETU of the circuit breaker The transformer is connected directly to the auxiliary conductor terminal system It is sui...

Страница 122: ...it breaker The external current transformer for the grounding conductor of the power supply is available with rated currents 100 A and 250 A Direct measurement of ground currents is an alternative to the vector sum calculation T6 External CT for grounding conductors of the main power supply grounded transformer star point GF CT 3 5 3 3 Summation current transformer Rc CT Residual currents of 3 A t...

Страница 123: ...ocking device OFF position Ronis lock Padlockable protective cover ON OF Locking device OFF position for padlocking Protective covers to prevent unintended mechanical operation With this protective device the circuit breaker can be protected from unintended operation It is mounted on the safety cover of the circuit breaker The pushbutton protection device prevents operation of the OFF and ON butto...

Страница 124: ...ted If only one button is protected the other button can be operated Locking device made of plastic for up to three padlocks with a diameter of 4 mm 0 16 Locking device made of metal for one padlock with a diameter of 7 mm 0 28 or for a padlock holder Locking device made of metal for up to 2 padlocks with a diameter of 8 mm 0 32 Locking device OFF position for padlocking The circuit breaker can be...

Страница 125: ...TEST or CONNECT Locking device in addition to or which permits only locking in breaker position DISCONNECT with the cy linder lock see or padlock see Locking device to prevent movement of the withdrawable circuit breaker with cylinder locks With the cylinder locks on the guide frame the circuit breaker is secured against racking in the guide frame The positions CONNECT TEST and DISCONNECT can be l...

Страница 126: ...iameter 8 mm 0 32 The circuit breaker can then no longer be racked in or out The padlocks are not included in the scope of delivery of the locking device and must be provided by the customer Additional locking device that permits only locking in breaker position DISCONNECT with the cylinder lock or padlock When you use cylinder locks locking can be limited to locking in the DISCONNECT position by ...

Страница 127: ...96002 01 125 Mechanical interlocks of the control panel door and with further 3WL 3VA circuit breakers Mutual mechanical interlocking Bowden cable Locking mechanism to prevent opening Bowden cable Locking mechanism to prevent opening of the control panel door direct Mounting of external auxiliary switches AUX 15CO not shown ...

Страница 128: ... being in the CLOSED position at the same time However all circuit breakers can be in the OPEN breaker position at the same time The following interlock combinations are possible Fixed mounted breaker fixed mounted breaker Fixed mounted breaker withdrawable breaker Withdrawable breaker withdrawable breaker The circuit breakers can also be interlocked with other sizes of 3WL series breakers Interlo...

Страница 129: ...Mounting support extended circuit brea ker feet kit incl me chanical transmission of switch position on circuit breaker side wall Fixed mounted brea ker floor fixation with externally moun ted interlocking modu le 3VW9011 0BB52 S56 Side wall extension kit modification for me chanical switch positi on transmission on circuit breaker side wall Fixed mounted brea ker wall mounting with externally mou...

Страница 130: ...To enable operation of the circuit breaker when a panel door is closed a cutout must be provided in the panel door With use of a cover frame this cutout has a pleasant appearance and achieves the higher degree of protection IP30 The cover frame is available in two versions Fixed mounted breaker top left in the figure Withdrawable breaker top right in the figure ...

Страница 131: ...t protective cover protects the complete front face of the circuit breaker In this way degree of protection IP 54 is achieved The protective cover is equipped with two locks The locks are available in two versions Same lock number The locks can be opened with the same key Different lock numbers Each lock has its own key both keys are required to open the protective cover ...

Страница 132: ...on Mounting and connecting the device Page 164 To implement floor mounting for a fixed mounted circuit breaker mounting feet are provided as additional accessories This is available in the standard version see figure above and in a version for side mounted accessories see Section Locking and interlocking Page 121 The different versions can be configured in the factory or retrofitted subsequently I...

Страница 133: ...rameterization of the ETUs of the 6 series Readout of the status and mainte nance information Readout of the measured value interval memory Functions of the TD410 test functio nalities Extended test function guided teach in of the protection parame ters Readout of the datalog network and fault analysis Possible with via test device Via communica tion interface Via front inter face ETU Access to fu...

Страница 134: ...ately tripping or only alarm 3 6 2 TD310 Activation Trip Box The TD310 Activation Trip Box is connected to the front test plug of the ETU It can be used with all electronic trip units of the 3 and 6 series Function scope Activation of the electronic trip units of the 3 and 6 series with a battery built into the test device Testing the release and the trip coil of the circuit breaker for correct fu...

Страница 135: ...to the ETU of the circuit breaker via the cable supplied It can be used with all electronic trip units of the 3 and 6 series Function scope Activation of the ETU Trip tests performed in the same ways as for the TD310 Gateway between PC and ETU Parameterization of the ETUs with the powerconfig software the standard software for parameterization and commissioning of all communication capable SENTRON...

Страница 136: ...ware Testing of the enhanced protection functions with the powerservice software Test data storage with the powerservice software Extended test functionality This is for checking the parameter settings of the ETU and comparing them with standardized typical applications and network circumstances In this way the behavior of the circuit breaker during operation can be forecast and analyzed to preven...

Страница 137: ...e for all communication capable SENTRON products from Siemens With this software the circuit breaker can be parameterized and commissioned and its settings can be archived and in the operating phase values from the plant current voltage etc can be read out and the status of the circuit breaker can be acquired The powerconfig https support industry siemens com cs ww us view 63452759 software is fre...

Страница 138: ......

Страница 139: ...lanning engineers and at control panel or switchboard manufacturers See also Accessories for connection and insulation Page 93 4 1 Types of installation and installation locations The circuit breaker is designed to be operated in enclosed rooms in which the operating conditions are not affected by dust or corrosive vapors gases Suitable enclosures must be used in dusty or damp conditions See also ...

Страница 140: ...Wall mounting 3VA27 molded case circuit breaker with toggle operating mechanism Fixed mounted brea ker Withdrawable breaker With front mounted rotary operator With door mounted rotary operator Floor mounting N A N A N A N A Wall mounting Interlocks mechanical direct cable 3VA27 molded case circuit breaker with stored energy operating mechanism Fixed mounting incl spring charging motor Withdrawable...

Страница 141: ...em configuration Mounting options In addition to floor mounting both the fixed mounted breaker and the withdrawable breaker permit direct rear wall mounting For floor mounting of the fixed mounted breaker version mounting supports are required see Section Support for floor fixation fixed breaker Page 130 Connection versions overview Numerous connection versions are available see also Section Acces...

Страница 142: ...e of protection The circuit breaker has the following degrees of protection fixed mounted breaker and withdrawable breaker IP20 for circuit breakers except for the terminals IP30 for the front of the circuit breaker if installed in switchboards with a door sealing frame IP30 see Chapter Accessories for connection and insulation Page 93 IP54 for the front of the circuit breaker if installed in swit...

Страница 143: ...8 122 Withdrawable breaker W 62 100 156 244 Power loss 3VA27 Iu 800 A 1000 A 1250 A 1600 A Fixed mounted breaker W 19 3 30 47 77 Withdrawable breaker W 35 3 55 86 141 The power losses have been calculated according to IEC 60947 4 1 4 Ambient conditions Pollution degree Operation of the circuit breaker is approved in accordance with IEC EN 60947 for pollution degree 3 The circuit breaker also compl...

Страница 144: ...it breaking capacity AC Icu Icu Ue 100 100 100 100 See also Installation in the switchboard Page 147 4 1 5 Current reduction 4 1 5 1 Current reduction depending on the ambient temperature on the 3WL10 The circuit breaker itself has no derating within the application temperatures Current rating In A Ambient temperature 40 C 45 C 50 C 55 C 60 C 65 C 70 C 630 100 100 100 100 100 100 100 800 100 100 1...

Страница 145: ...800 800 800 778 755 100 100 100 100 100 97 94 1000 600 1000 1000 1000 1000 1000 949 894 100 100 100 100 100 95 89 1250 800 1250 1250 1250 1250 1192 1131 1066 100 100 100 100 95 90 85 1600 1000 1600 1600 1537 1470 1403 1329 1255 100 100 96 92 88 83 78 for Straight bus connectors extended Rear horizontal main circuit connection Rated opera tional current In A Min cop per cross section mm2 Ambient te...

Страница 146: ... 1182 1122 1057 100 100 100 99 95 90 85 1600 Bars 2x50x10 1000 1400 1350 1296 1240 1183 1122 1058 88 84 81 78 74 70 66 1600 Bars 3x50x10 1500 1600 1541 1481 1417 1352 1281 1209 100 96 93 89 85 80 76 Socket head cap screw DIN 7984 M10x50 8 8 required Withdrawable for Rear vertical main circuit connection Rear connection bars for CuAl cables using cable lug Rated opera tional current In A Min cop pe...

Страница 147: ...000 600 1000 1000 1000 971 942 885 827 100 100 100 97 94 88 83 1250 800 1250 1250 1250 1184 1118 1049 980 100 100 100 95 89 84 78 1600 1000 1600 1541 1481 1417 1352 1281 1209 100 96 93 89 85 80 76 for Broadened bus connectors Straight bus connectors extended Rated opera tional current In A Min cop per cross section mm2 Ambient temperature 40 C 45 C 50 C 55 C 60 C 65 C 70 C 800 500 800 800 800 766 ...

Страница 148: ...lines e g IEC 61439 4 1 6 Use in IT systems The devices have been tested and are ready for use in terms of their IT network capability according to IEC 60947 2 Annex H including maximum rated operational voltage 3VA27 690 V 3WL10 690 V Class N and Class S 440 V Class B Failure probability acc to B10d 3WL10 20 000 mechanical operating cycles 3VA27 10 000 mechanical operating cycles Vibration resist...

Страница 149: ... a great influence on the ratings of the circuit breakers The circuit breaker is also optimized for advantageous switchboard integration and provides savings and reduced engineering in respect of Copper busbars Connection architecture Segregation and internal separation Mounting options In the following mounting conditions see Section Power in the switchboard the most important factors have been t...

Страница 150: ...hboard used in the test has degree of protection IP31 and has the following design and dimensions figure shows the cross section of the side view 3WL10 1 circuit breaker per panel width section in the switchboard Circuit breaker power with rear terminals for main circuit connec tion Horizontally oriented Vertically oriented Iu A Busbar connection mm Com part ment Ambient temperature Ambient temper...

Страница 151: ... 630 A 630 A 630 A 1 630 A 630 A 630 A 630 A 630 A 630 A 800 2 x 50 x 5 2 800 A 800 A 800 A 800 A 800 A 800 A 1 800 A 800 A 800 A 800 A 800 A 800 A 1000 2 x 50 x 10 2 x 50 x 8 1 2 1000 A 960 A 920 A 1000 A 1000 A 970 A 1 970 A 930 A 900 A 1000 A 1000 A 950 A 1250 2 x 50 x 10 2 x 50 x 8 1 2 1250 A 1200 A 1140 A 1250 A 1250 A 1200 A 1 1200 A 1150 A 1100 A 1250 A 1250 A 1150 A 1 Horizontally oriented...

Страница 152: ...t The auxiliary power supply is always necessary for the communication function As a further option the MF Advanced metering module can be used If the voltage is tapped internally on the line side with the contacts open this can also be used to power the electronics directly and independently If a metering module is present the voltage taps must be installed on the line side In the circuit breaker...

Страница 153: ...able rear terminals 40 1 58 10 0 39 12 5 0 49 11 0 43 12 5 0 49 25 0 1 0 98 0 004 40 354 Horizontally orientable rear terminals 40 1 58 50 1 97 10 0 39 12 5 0 49 11 0 43 12 5 0 49 25 0 1 0 98 0 004 40 354 Front terminals for main circuit connection 40 1 58 50 1 97 10 0 39 20 0 79 16 0 63 11 0 43 14 0 55 25 0 1 0 98 0 004 18 159 3 Front connection bars extended 40 1 58 50 1 97 10 0 39 14 0 55 11 0 ...

Страница 154: ...2 x 50 x 10 2 x 50 x 8 Wmin mm in Wmax mm in n Dmax mm in mm in H mm in Nm lb in Vertically orientable rear terminals 24 0 95 1 4 11 0 43 12 5 0 49 40 354 Horizontally orientable rear terminals 24 0 95 1 4 11 0 43 12 5 0 49 40 354 Front terminals for main circuit connection 24 0 95 1 2 20 0 79 11 0 43 14 0 55 18 159 3 Front connection bars extended 50 1 97 1 2 11 0 43 40 354 24 0 95 1 4 Front conn...

Страница 155: ...unted breaker version Circular conductor termi nal adapter 4x240 30 21 5 120 to 240 43 380 6 Tightening torque The following applies to connecting bars to horizontally vertically orientable rear terminals for main circuit connection Rated uninterrupted current Iu A Busbar dimensions Horizontally oriented rear terminals Vertically oriented rear terminals 630 2 x 40 x 5 800 2 x 50 x 5 1000 2 x 50 x ...

Страница 156: ...ion 40 1 58 10 0 39 12 5 0 49 11 0 43 12 5 0 49 25 0 1 0 98 0 004 40 354 Horizontally orientable rear terminals for main circuit connection 40 1 58 50 1 97 10 0 39 12 5 0 49 11 0 43 12 5 0 49 25 0 1 0 98 0 004 40 354 Front extended terminals 40 1 58 50 1 97 10 0 39 12 5 0 49 11 0 43 12 5 0 49 25 0 1 0 98 0 004 40 354 Rear connection bars broadened 40 1 58 60 2 36 10 0 39 12 5 0 49 11 0 43 12 5 0 4...

Страница 157: ...n circuit connection 24 0 95 1 4 11 0 43 12 5 0 49 40 354 Horizontally orientable rear terminals for main circuit connection 24 0 95 1 4 11 0 43 12 5 0 49 40 354 Copper aluminum cable connection bar 35 1 37 1 6 14 5 0 57 17 5 0 69 40 354 Front extended terminals 50 1 97 1 2 11 0 43 12 5 0 49 40 354 24 0 95 1 4 Front connection bars broadened 22 0 86 1 x 3 1 x 2 13 0 5 40 354 44 1 73 1 4 Tightening...

Страница 158: ...al base floor mounting or the metal wall wall mounting of the switchboard panel no additional grounding is required This means there must be no insulation material between the circuit breaker and the grounded metal of the switchboard panel 4 2 2 Isolating distances and insulating equipment When live parts are installed the following rules must be followed Minimum isolating distance between the pha...

Страница 159: ...asures Note The insulating equipment is only required for the fixed mounted version of the circuit breaker No insulating equipment is required in the withdrawable breaker Connection Article No Insulation requirement 3VW9011 0AL71 3VW9011 0AL72 E F 3VW9011 0AL01 3VW9011 0AL02 3VW9011 0AL32 3VW9011 0AL33 D 3VW9011 0AL77 3VW9011 0AL78 A F B F E F 3VW9011 0AL73 3VW9011 0AL74 B F ...

Страница 160: ...1 Insulating measure Article No contained in A 3VW9723 0WA00 3VW9724 0WA10 3VW9011 0AL77 3VW9011 0AL78 B 3VW9723 0WA01 3VW9724 0WA11 3VW9011 0AL73 3VW9011 0AL74 D 3VW9723 0WD30 3VW9724 0WD40 3VW9011 0AL32 3VW9011 0AL33 E 3VW9723 0WF30 3VW9724 0WF40 3VW9011 0AL71 3VW9011 0AL72 F 3VW9011 0AL71 3VW9011 0AL72 3VW9011 0AL73 3VW9011 0AL74 3VW9011 0AL77 3VW9011 0AL78 ...

Страница 161: ...minimize the effects armature plates must be mounted in the vicinity of the terminals of the circuit breaker Busbars The following diagram shows the distance of the first armature plate depending on the prospective short circuit current when busbars are used Distance of the first armature plate to the terminals of the circuit breaker Prospective short circuit current Cables If cables are used in t...

Страница 162: ...the same time Simple integration into power monitoring systems with the modular metering functions MF Basic or MF Advanced according to IEC 61557 1 Simple integration into plant monitoring systems for monitoring Status Measured values Alarms and warnings Diagnostics Maintenance Significant additional benefits for the switchboard due to the possibility of connecting external input and output module...

Страница 163: ...n modules it can be integrated into the communication environment with two different protocols For example simultaneous connection of a fieldbus for automation or remote control applications incl parameterization and remote switching and Modbus TCP Ethernet communication link for communicating measured values for efficient and safe power monitoring For the remote control switch of the 3VA27 you re...

Страница 164: ...ion and configuration With the powerconfig software as of Version 3 9 Energy management Metering function MF Basic MF Advanced Remote access and remote switching Integration in powermanager and TIA You will find further information on the communication link in the 3WL10 communication manual and in the 3VA communication manual see Chapter AUTOHOTSPOT in the Modbus Map in the SIOS Portal ...

Страница 165: ...spring energy store Also note the relevant notes in Chapter Safety instructions Page 11 NOTICE Damage due to setting down on the rear face Circuit breakers and guide frames must not be set down on their rear face After unpacking stand the circuit breaker guide frame upright on its underside Note Clean the main conductor terminals Clean busbars stripped cable ends and cable lugs The contacts of the...

Страница 166: ...ed mounted breaker version Horizontally vertically orientable rear connections 20 40 Front terminals for main circuit connection 18 18 Front connection bars extended 18 40 Front connection bars broadened 18 40 Copper aluminum cable connection bar 18 Connections of the guide frame Horizontally vertically orientable rear connections 20 40 Front terminals for main circuit connection 12 40 Front conne...

Страница 167: ...e for the withdrawable breaker The circuit breaker is delivered to the user with the connections chosen in the basic configuration of the circuit breaker Any necessary installation of connections is described below Mounting front extended terminals for main circuit connection and circular conductor terminals 4x240 Front extended terminals for main circuit connection and circular conductor terminal...

Страница 168: ...main circuit connection broadened Front terminals for main connection broadened are supplied unmounted with the circuit breaker Screw the front terminals for main circuit connection broadened or circular conductor terminals to the front terminals for main circuit connection Note the operating instructions of the relevant connection system see Chapter Product specific information Page 9 ...

Страница 169: ...rse if necessary 1 Remove the rear terminals for main circuit connection from the circuit breaker and pull the terminals out of the insulating frame 2 Disconnect the two parts of each terminal and place one on top of the other again For vertical orientation The two widened ends are opposite each other see figure below For horizontal orientation The two widened ends are next to each other and point...

Страница 170: ... extended front terminals on the guide frame The extended front terminals are supplied unmounted with the circuit breaker Screw the extended front terminals on the circuit breaker to the unconnected flange and place the insulating caps on them Mount the insulation protection see dimension drawing Page 236 before or during the following assembly work in the switchboard panel ...

Страница 171: ...air circuit breakers Manual 10 2018 L1V30499596002 01 169 Mounting broadened front terminals on the guide frame The broadened front terminals are supplied unmounted with the circuit breaker Screw the extended front terminals on the circuit breaker to the unconnected flange and place the insulating caps on them ...

Страница 172: ...de frame The circular conductor terminals 4x 240 mm are provided unmounted with the circuit breaker Screw the circular conductor terminals 4x 240 mm to the rear terminals for main circuit connection Pay attention to the prescribed positioning on the right or left on each terminal for main circuit connection You will find more information in the relevant Operating Instructions see Chapter Product s...

Страница 173: ...uit connection vertical horizontal on the guide frame The rear terminals for main circuit connection of the guide frame are delivered completely mounted They can be turned from the horizontal to the vertical orientation and vice verse if necessary 1 Remove the rear terminals for main circuit connection from the guide frame 2 Turn the terminals into the required orientation and mount them back on t...

Страница 174: ...e see Chapter Switchboard panel hole and drilling templates fixed breaker Page 228 Mount the supports for floor fixation on the circuit breaker following the relevant Operating Instructions see Chapter Reference documents Page 10 Fasten the circuit breaker to the compartment floor of the switchboard panel with four screws M5 x 25 with a tightening torque of 4 Nm Note The mounting supports are not ...

Страница 175: ...ope of delivery with a tightening torque of 8 6 Nm 2 Screw the busbars cables of the main conductor paths to the connections of the circuit breaker for tightening torques see table Tightening torques at a glance Page 164 Note the operating instructions of the relevant connection system see Chapter Reference documents Page 10 3 Mount the prescribed insulation accessories You will find information a...

Страница 176: ...mpatible characteristics from being inserted into the guide frame When a withdrawable circuit breaker is delivered the guide frame is already correctly coded The user only needs to code the guide frame if the guide frame and circuit breaker are ordered separately 1 Screw the screws supplied into the holes of the left hand guide frame side wall You will find the correct coding for the circuit break...

Страница 177: ... 01 175 Installing the guide frame 1 Install the guide frame in the switchboard panel Floor mounting For the drilling template see Chapter Switchboard panel hole and drilling templates fixed breaker Page 228 Fasten the guide frame to the base of the switchboard panel with four screws M8 x 25 included in the scope of delivery with a tightening torque of 21 Nm ...

Страница 178: ...nded front terminals to be provided by the customer 2 Ensure that the guide frame is grounded see Chapter Power supply grounding and connection Page 151 3 Screw the busbars cables of the main conductor paths to the connections of the withdrawable breaker version for tightening torques see table Tightening torques at a glance Page 164 Note the operating instructions of the relevant connection syste...

Страница 179: ...ng accessories 5 3 1 Installing accessories WARNING Hazardous voltage The front cover and terminal covers must only be removed when the circuit breaker is open Follow all safety instructions in Chapter Safety instructions Page 11 Put the circuit breaker into the OPEN position Discharge the spring energy store Auxiliary conductor termination area Accessories area ...

Страница 180: ...ing switches that communicate states as well as auxiliary solenoids and components that provide extra functionality are placed This area is local functional and therefore strictly physically segregated from areas of the device such as the operator the contact system the current conducting paths the arc chute and the electronics for safety reasons too 1 Remove the front cover and the terminal cover...

Страница 181: ...ers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 179 2 Install the accessories as described in the relevant Operating Instructions https support industry siemens com cs ww en ps You will find a few examples in Chapter Examples of mounting internal accessories Page 184 too ...

Страница 182: ...ductor terminals it contains or the CB Bus Module that is plugged in The internal wiring to the corresponding pins is available on every circuit breaker By studying the labeling shown below the user will find the relevant pin assignment for the external wiring of the user s accessories to the corresponding auxiliary conductor terminals These are implemented with a screwless push in method and are ...

Страница 183: ...rcuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 181 Overview of auxiliary conductor connections version 3WL10 3VA27 fixed mounted circuit breaker On left Breaker with toggle operating mechanism On right Breaker with stored energy operating mechanism ...

Страница 184: ...rcuit breakers 3WL10 air circuit breakers 182 Manual 10 2018 L1V30499596002 01 Overview of auxiliary conductor connections version 3WL10 3VA27 withdrawable circuit breaker On left Breaker with toggle operating mechanism On right Breaker with stored energy operating mechanism ...

Страница 185: ...ies 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 183 4 Remount the front plates and terminal covers on the circuit breaker if they have been removed Proceed in the reverse sequence from that for removal ...

Страница 186: ...ries 3VA27 molded case circuit breakers 3WL10 air circuit breakers 184 Manual 10 2018 L1V30499596002 01 5 3 2 Examples of mounting internal accessories Mounting the actuator module Mounting the auxiliary switch AUX 4CO AUX 2CO 2CO changeover contacts ...

Страница 187: ... commissioning 5 3 Mounting accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 185 Mounting the tripped signaling switch S24 Mounting the remote reset magnet RR ...

Страница 188: ...5 3 Mounting accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers 186 Manual 10 2018 L1V30499596002 01 Mounting the mechanical operating cycles counter Mounting the undervoltage release UVR auxiliary coil ST CC ...

Страница 189: ...187 Mounting the spring charging motor 5 4 Function test of the ETU WARNING Hazardous voltage The power supply of the ETUs through the main circuits must only be used after commissioning Before the ETU can be supplied with power through the main current paths the tests in the chapter on commissioning see Chapter Commissioning Page 189 must be performed ...

Страница 190: ...orking normally the LED test is passed as described above Protection function test 1 Make sure that the circuit breaker is in the CLOSED ON position and that the main circuits are not carrying any current 2 Connect the ETU via the TD410 or TD420 test device with a laptop on which the powerservice software is installed 3 Run the protection function test with powerservice and check whether all prote...

Страница 191: ...witchboards are de energized Note General testing of the circuit breaker is necessary in the following cases The circuit breaker is put into operation for the first time The circuit breaker is inactive for a long time and during storage under certain environmental conditions The tests contain the procedures that must only ever be performed by electrically skilled persons Electrically skilled perso...

Страница 192: ...resent The following tests must be conducted for inspection before re commissioning after tripping and after lengthy storage under certain environmental conditions These can be performed with a TD310 test device to power the ETU They are not mandatory for a device from the factory because the circuit breaker is completely and thoroughly tested including all installed accessories before delivery A ...

Страница 193: ...ng operation on the circuit breaker Result The circuit breaker closes The behavior and the signals of the auxiliary swit ches are correct Note If the undervoltage coil is tripped by a shunt release ST the circuit breaker cannot be reclosed until voltage is applied to the undervoltage coil again Make sure that the coil was really tripped by a power failure Otherwise examine the circuit brea ker and...

Страница 194: ...g circuits 2 Put the circuit breaker into the following positions CONNECT TEST and DISCONNECT Result The signals caused by each operation are correct Mutual mechanical interlocking between circuit breakers installed side by side or one above the other Perform the function tests Result The interlockings function correctly Racking of the circuit breaker in the guide frame1 Move the circuit breaker o...

Страница 195: ...est device Remove the TD310 test device if connected 5 Connecting the voltage Connect the auxiliary voltage 6 Closing the switchboard Close the control panel door 7 Charging the springs Charge the springs with the manual lever 8 Undervoltage release Make sure that voltage is applied to the undervoltage release 9 Open and close the closing coil and shunt release Make sure no voltage is applied to t...

Страница 196: ......

Страница 197: ...tch position indicator contacts OPEN CLOSED Mechanical ON pushbutton Mechanical OFF pushbutton Status indicator of spring energy store CHARGED DISCHARGED Manual lever for charging the spring energy store Toggle The following conditions must be met before the circuit breaker can be closed Circuit breaker in the OPEN position Spring energy store compressed Open command via remote access is not pendi...

Страница 198: ...eaker can be reclosed immediately This enables the following switching sequence in the CLOSED state and with the spring energy store CHARGED Open Closed Open A discharged spring energy store is indicated by the DISCHARGED symbol To charge the spring energy store proceed as follows 1 Move the manual lever down 9 times until the spring energy store audibly engages The spring energy store is now char...

Страница 199: ...ker via the auxiliary conductor terminal system 1 Charge the spring energy store if it is not already charged 2 Transmit the closing opening command to the closing coil CC CLOSED or the shunt release ST OPEN 6 1 2 Entering parameters Note A change of parameters during operation is accepted unless the protection function affected is in the picked up condition is actively metering or is above the ne...

Страница 200: ...d parameter value using a suitable screwdriver The rotary switch must noticeably engage at the value and the arrow must not point to one of the lines Example short time delayed short circuit protection ST parameter set Isd 4 x In The new parameter value is set and active Setting the neutral protection with the DIP switches 1 Set the neutral protection with the two DIP switches in the range IN The ...

Страница 201: ... You will find information on the control keys and the menu structure in Chapter Design of the electronic trip units Page 52 Entering parameters 1 Use the arrow keys to navigate to the parameter display 2 Press the OK control key Parameter editing mode is active The password has its default setting 0001 3 Use the arrow keys to navigate to the parameter area of the required protection release 4 Pre...

Страница 202: ... The circuit breaker must only ever be racked while it is open Switch the circuit breaker into the OPEN position Discharge the spring energy store Inserting the racking handle 1 Pull the racking handle out of the guide frame 2 Fold the handle of the racking handle into position 3 Insert the racking handle into the opening above the position indicator and press the unlocking button PUSH before Oper...

Страница 203: ...rcuit breaker engages It is then not possible to turn the racking handle any further and the PUSH before Operating enabling pushbutton is now flush with the front of the guide frame In the TEST position the internal accessories are contacted and can be tested Moving between switch positions Note The circuit breaker engages in each switch position To move it to the next switch position you have to ...

Страница 204: ...aker from the guide frame Removing the racking handle 1 Pull the racking handle out 2 Fold the handle back into line and return the racking handle to its storage compartment Locking the guide frame interlocking the shutter In order to safeguard an installation and its sub distribution board in a no current condition e g in the event of maintenance work or until a new device is available to replace...

Страница 205: ...isplay warning displays electronic trip units of the 6 series of the ETU Indications of ETUs of the 3 series LED protection release L LED protection release S LED protection release I LED protection release G LED ACT The electronic trip units of the 3 series display the indications and alarms on the LEDs on their front face Note The diagram shows the maximum possible number of LEDs Depending on th...

Страница 206: ... status Measure comment Flashing fast 2 Hz Flashing fast 2 Hz Flashing fast 2 Hz Flashing fast 2 Hz Auxiliary solenoid closing coil shunt release CC ST not connected or trip command failed Check connections Flashing slowly 0 5 Hz Flashing fast 2 Hz Flashing fast 2 Hz Flashing fast 2 Hz Current sensor not connected Check connections Flashing slowly 0 5 Hz with 2 s pause Flashing slowly 0 5 Hz with ...

Страница 207: ...uit breaker has been tripped by the S release Clear faults in the power system and close the circuit brea ker again On Circuit breaker has been tripped by the I release Clear faults in the power system and close the circuit brea ker again On Circuit breaker has been tripped by the G release Clear faults in the power system and close the circuit brea ker again Flashing fast 2 Hz Threshold has been ...

Страница 208: ...rrect the installation Flashing slowly 0 5 Hz Circuit breaker in un defined or faulty state Check the position of the circuit breaker in the guide frame check the functioning of the modules signaling the main contacts Flashing slowly 3 x 0 5 Hz with 3 s pause Maintenance necessa ry Perform maintenance 5 x flashing fast 5 x 2 Hz Battery of the connec ted test device almost empty in self test Insert...

Страница 209: ...for operation LED ACT Warning display 1 Warning display 2 i Test control key Display Display of the LED ACT The LED name ACT stands for ACTIVE This LED indicates that the ETU is ready for operation If the LED does not light up the power supply of the ETU is interrupted and the ETU is not ready to operate ACT Alarm status Measure comment Flashing slowly 1 Hz 0 1 s on 0 9 s off ETU ready No measures...

Страница 210: ...re or reduce the continuous opera ting current Contact erosion 80 Prompt maintenance and re placement of the circuit breaker required Line frequency outside the tole rance Check possible interference fac tors In_pal warning Pre alarm threshold has been exceeded Flashing fast 2 Hz A warning is pending Press the control key i Test to display a list of warning messa ges on the display You can read wh...

Страница 211: ... evaluated by Technical Support This requires a test device TD410 or TD420 and the powerconfig and powerservice software Load the powerconfig https support industry siemens com cs ww en view 63452759 software onto a laptop computer connected to the Internet Download the powerservice software from the SIOS Portal https support industry siemens com cs ww en view 109749079 Connect the PC via the test...

Страница 212: ......

Страница 213: ...e line side and on the load side On the withdrawable breaker Rack the circuit breaker into the breaker position DISCONNECT If necessary secure it against falling Disconnect the guide frame from the power system and auxiliary circuit and visibly ground the terminals on the line side and on the load side 3 Discharge the springs by closing and opening the circuit breaker again display DISCHARGED Note...

Страница 214: ...eaker On the ETUs of the 3 series the status of the circuit breaker must not be incorrect see tables of the LED display in Chapter Alarms Page 203 Perform a close open operation on the circuit breaker and check that no alarms have occurred On the ETUs of the 6 series the status of the circuit breaker must be correctly shown on the display Perform a close open operation on the circuit breaker and c...

Страница 215: ...cloth 4 Check the enclosure for damage visual inspection Checking connections and installation Check the connections 1 Remove dust and dirt from the terminals with a dry brush or cloth If necessary you can use a mild cleaning agent In the case of severe contamination you can use a cleaning agent such as Henkel 273471 Chemma 18 or an equivalent cleaner 2 Check that the terminals do not exhibit any ...

Страница 216: ...t plate and accessories For further maintenance the circuit breaker must be partially disassembled 1 Remove the front plates and terminal covers see Chapter Installing accessories Page 177 2 Remove the spring charging motor MO Page 184 if installed 3 Remove the undervoltage release UVR Page 184 if installed 4 Discharge the springs of the tripping mechanism 5 Remove the cover over the mechanical pu...

Страница 217: ...he points shown below with Mobilgrease 28 from EXXON MOBIL 3 Make sure that the shafts of the opening and closing mechanism can be moved freely 7 5 3 Inspecting the accessories 1 Check that the accessories are firmly seated in the circuit breaker 2 Check correct connection between the circuit breaker and the accessories 3 Make sure that any auxiliary solenoids are in a good condition No increased ...

Страница 218: ...eries only Call up the wear indicator on the contacts of the circuit breaker on the display 5 After the work remove the TD310 Activation Trip Box from the ETU Check the TD410 Breaker Data Adapter and the TD420 test device 1 Connect the TD 410 or TD420 to the ETU and to a PC with the powerconfig software 2 Check whether there are any alarm messages and evaluate them see Chapter Alarms Page 203 3 If...

Страница 219: ...Perform the following operations ten times using the relevant accessories including via remote access if available Open Close Trip with the test button on the ETU Perform the operations in the following order Open spring discharged Open spring charged Close spring discharged Close spring charged 5 Check whether the following modules respond correctly if available Accessories Spring charging motor ...

Страница 220: ......

Страница 221: ...e neutral pole for 4 pole circuit breakers In 100 Rated ultimate short circuit breaking capacity Icu 415 V AC kA 42 55 66 500 V AC kA 42 50 50 690 V AC kA 42 50 Rated service short circuit breaking capacity Ics 415 V AC kA 42 50 50 500 V AC kA 42 50 50 690 V AC kA 42 50 Rated short circuit making capacity Icm 415 V AC kA 88 121 145 500 V AC kA 88 105 105 690 V AC kA 88 105 Rated short time withsta...

Страница 222: ...urrent carrying capacity of the neutral pole for 4 pole circuit breakers In 100 Rated ultimate short circuit breaking capacity Icu 220 230 V kA 100 150 200 380 400 415 V kA 55 85 110 440 V kA 55 85 100 500 V kA 36 55 85 690 V kA 25 36 50 Rated service short circuit breaking capacity Ics 220 230 V kA 100 150 200 380 400 415 V kA 55 85 110 440 V kA 55 85 100 500 V kA 36 55 63 690 V kA 25 36 37 Rated...

Страница 223: ...rs 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 221 Dimension drawings 9 9 1 Fixed mounted breaker 9 1 1 Circuit breaker without connections Stored energy operating mechanism toggle operating mechanism 1 3 pole 2 4 pole ...

Страница 224: ...sion drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 222 Manual 10 2018 L1V30499596002 01 9 1 2 Front terminals for main circuit connection 1 3 pole 2 4 pole ...

Страница 225: ... drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 223 9 1 3 Front terminals for main circuit connection extended 1 3 pole 2 4 pole ...

Страница 226: ...Dimension drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 224 Manual 10 2018 L1V30499596002 01 9 1 4 Front connection bars broadened ...

Страница 227: ...d mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 225 9 1 5 Horizontally vertically orientable rear connection Orientable rear connection horizontal 1 3 pole 2 4 pole ...

Страница 228: ...Dimension drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 226 Manual 10 2018 L1V30499596002 01 Orientable rear connection vertical 1 3 pole 2 4 pole ...

Страница 229: ...nsion drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 227 9 1 6 Circular conductor terminal adapter 4x240 1 3 pole 2 4 pole ...

Страница 230: ...mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 228 Manual 10 2018 L1V30499596002 01 9 1 7 Switchboard panel hole and drilling templates fixed breaker Dimensions of switchboard panel 1 3 pole 2 4 pole ...

Страница 231: ... breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 229 Hole pattern for switchboard panel door Control panel door Rear wall Base plate Standard Locking device OFF pos Ronis lock to prevent unauthorized closing A MIN 49 5 mm 63 5 mm A MAX 83 5 mm 97 5 mm ...

Страница 232: ...Dimension drawings 9 1 Fixed mounted breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 230 Manual 10 2018 L1V30499596002 01 Drilling pattern for floor fixation 1 3 pole 2 4 pole ...

Страница 233: ...2018 L1V30499596002 01 231 Drilling pattern for wall mounting and cutout for rear terminals for main circuit connection version horizontal vertical Cutouts top and bottom only required with rear connections A 3 pole 192 5 mm 4 pole 262 5 mm W 3 pole 70 mm 4 pole 140 mm 9 1 8 Fixed mounted version with mounting support ...

Страница 234: ...case circuit breakers 3WL10 air circuit breakers 232 Manual 10 2018 L1V30499596002 01 9 2 Withdrawable breaker 9 2 1 Circuit breaker without connections Distance from CONNECT position to DISCONNECT position Rear partition for rear terminals 1 3 pole 2 4 pole ...

Страница 235: ...eaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 233 9 2 2 Horizontally vertically orientable rear terminal for main circuit connection Orientable rear terminal for main circuit connection ...

Страница 236: ...rawings 9 2 Withdrawable breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 234 Manual 10 2018 L1V30499596002 01 9 2 3 Copper aluminum cable connection bar A cable lug is required for connection ...

Страница 237: ...Dimension drawings 9 2 Withdrawable breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 235 1 3 pole 2 4 pole ...

Страница 238: ...Dimension drawings 9 2 Withdrawable breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 236 Manual 10 2018 L1V30499596002 01 9 2 4 Front extended terminal ...

Страница 239: ...Dimension drawings 9 2 Withdrawable breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 237 9 2 5 Front connection bars broadened ...

Страница 240: ...Dimension drawings 9 2 Withdrawable breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers 238 Manual 10 2018 L1V30499596002 01 9 2 6 Rear connection bars broadened ...

Страница 241: ...ble breaker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 239 9 2 7 Switchboard panel hole and drilling templates withdrawable breaker Dimensions of switchboard panel 1 3 pole 2 4 pole ...

Страница 242: ... 2018 L1V30499596002 01 Hole pattern for switchboard panel door Control panel door Rear wall Base plate Standard A 36 mm Locking device against racking of the withdrawable CB 46 5 mm W 44 5 mm Locking device OFF pos Ronis lock to prevent unauthorized closing 55 mm 1 Distance from CONNECT position to DISCONNECT position ...

Страница 243: ...aker 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 241 Drilling pattern for floor fixation and fixation on support plate 1 3 pole 2 4 pole Drilling pattern for wall mounting 1 3 pole 2 4 pole ...

Страница 244: ...s 9 3 Further dimension drawings 3VA27 molded case circuit breakers 3WL10 air circuit breakers 242 Manual 10 2018 L1V30499596002 01 9 3 Further dimension drawings 9 3 1 Phase barrier 9 3 2 Door covers Door sealing frame ...

Страница 245: ...Dimension drawings 9 3 Further dimension drawings 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 243 IP54 protective cover 9 3 3 Terminal cover ...

Страница 246: ......

Страница 247: ...99596002 01 245 Circuit diagrams 10 The basic state of the circuit breaker which is used as the basis for the circuit diagrams Circuit breaker OFF main contacts open Withdrawable circuit breaker in connected position Discharged Stored energy operating mechanism with discharged spring ...

Страница 248: ...Circuit diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers 246 Manual 10 2018 L1V30499596002 01 Overall circuit diagram for 3WL10 fixed mounted breakers ...

Страница 249: ...Circuit diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 247 Overall circuit diagram for 3WL10 withdrawable breakers ...

Страница 250: ...it diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers 248 Manual 10 2018 L1V30499596002 01 Overall circuit diagram for 3VA27 fixed mounted breakers with stored energy operating mechanism ...

Страница 251: ...ircuit diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 249 Overall circuit diagram for 3VA27 fixed mounted breakers with toggle operating mechanism ...

Страница 252: ...uit diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers 250 Manual 10 2018 L1V30499596002 01 Overall circuit diagram for 3VA27 withdrawable breakers with stored energy operating mechanism ...

Страница 253: ...ircuit diagrams 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 251 Overall circuit diagram for 3VA27 withdrawable breakers with toggle operating mechanism ...

Страница 254: ...e diagram of the auxiliary conductor terminal block 10 1 Circuit diagrams of accessories The connection diagram of the accessories and control wire taps shows details from left to right of the withdrawable circuit breaker by way of example for all circuit breakers The following abbreviations are used 3WL10 3VA27 SE Stored Energy stored energy operating mechanism 3VA27 toggle Toggle operating mecha...

Страница 255: ...se circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 253 10 1 2 Spring charging motor MO spring charged signaling switch S21 remote reset magnet RR 3WL10 3VA27 SE 10 1 3 Tripped signaling switch toggle operating mechanism MCCB TAS 3VA27 toggle ...

Страница 256: ...f accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers 254 Manual 10 2018 L1V30499596002 01 10 1 4 Leading changeover switch S26 3VA27 toggle 10 1 5 CT for grounded transformer star point G_ret 3WL10 3VA27 SE 3VA27 toggle ...

Страница 257: ...grams 10 1 Circuit diagrams of accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 255 10 1 6 Summation current transformer Rc CT 3WL10 3VA27 SE 3VA27 toggle ...

Страница 258: ...B bus module Breaker Connect module external power supply communication modules digital I O module IOM040 position signaling switch PSS for guide frame PSS COM 3WL10 3VA27 SE 3VA27 toggle Digital I O module IOM040 COM041 PROFINET COM043 Modbus TCP COM044 IEC 61850 COM040 PROFIBUS COM042 Modbus RTU Of these three modules a maximum of two modules can be installed ...

Страница 259: ...t breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 257 10 1 8 External I O module IOM300 3WL10 3VA27 SE 3VA27 toggle Connection on the Breaker Connect module or optionally directly on the auxiliary conductor terminal system via the auxiliary conductor terminal ...

Страница 260: ...58 Manual 10 2018 L1V30499596002 01 10 1 9 External current transformer for N conductor for 3 pole circuit breakers only 3WL10 3VA27 SE 3VA27 toggle Note In the 4 pole circuit breaker one internal N conductor current transformer is always included 10 1 10 Tripped signaling switch via auxiliary release S25 3VA27 toggle ...

Страница 261: ...cessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 259 10 1 11 Ready to close signaling switch RTC 3WL10 3VA27 SE 10 1 12 Undervoltage release shunt release UVR ST2 3WL10 3VA27 SE 3VA27 toggle ...

Страница 262: ...ams of accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers 260 Manual 10 2018 L1V30499596002 01 10 1 13 Time delay device for UVR external monitoring of UVR can be mounted on the DIN rail 3WL10 3VA27 SE 3VA27 toggle ...

Страница 263: ...s 10 1 Circuit diagrams of accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 261 10 1 14 Closing coil CC shunt release ST actuator module COM ACT 3WL10 3VA27 SE ...

Страница 264: ...agrams 10 1 Circuit diagrams of accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers 262 Manual 10 2018 L1V30499596002 01 3VA27 toggle 10 1 15 Auxiliary switch AUX 3WL10 3VA27 SE 3VA27 toggle ...

Страница 265: ...cuit breakers 3WL10 air circuit breakers Manual 10 2018 L1V30499596002 01 263 10 1 16 Auxiliary switch AUX 15 external 3WL10 3VA27 SE 3VA27 toggle 10 1 17 Optional voltage input external neutral for the metering function of a 3 pole circuit breaker 3WL10 3VA27 SE 3VA27 toggle ...

Страница 266: ... 10 1 Circuit diagrams of accessories 3VA27 molded case circuit breakers 3WL10 air circuit breakers 264 Manual 10 2018 L1V30499596002 01 10 1 18 Position signaling switch PSS for guide frame 3WL10 3VA27 SE 3VA27 toggle ...

Страница 267: ... 11 node Id 10027213 kmat 3WL10 bookmark In the Online Configurator impermissible combinations are automatically excluded in the article number If you compile the article number yourself based on the following lists you must check the exclusion criteria yourself You will find more information in the catalogs for 3WL10 and 3VA27 see Chapter Reference documents Page 10 Article number Position 1 5 Ba...

Страница 268: ...s H 2 6 Class S 3 Class C 3 7 Example article number breaking capacity N 3 W L 1 0 1 0 2 Position 9 Metering function and communication link Without a metering function without a communication link A Without a metering function with a communication link B Metering function Basic voltage tap bottom with communication link1 C Metering function Basic voltage tap top with communication link1 D Meterin...

Страница 269: ...al left withdrawable breaker 4 4 poles neutral right fixed mounted breaker 2 4 poles neutral right withdrawable breaker 5 Example article number 4 poles neutral left withdrawable breaker 3 W L 1 0 1 0 2 C F 4 Position 12 Connection technology 3WL10 Withdrawable breaker version without guide frame 0 Orientable rear connection mounted vertically fixed withdrawable breaker 1 Orientable rear connectio...

Страница 270: ...e rear connection mounted vertically 3 W L 1 0 1 0 2 C F 4 1 Position 13 Spring charging motor MO 3WL10 3VA27 stored energy operating mechanism Spring charging motor MO 24 to 30 V AC DC 1 48 60 V AC DC 2 110 V AC DC 3 230 V AC DC 4 3VA27 toggle operating mechanism Alarm switches Without alarm switch 0 TAS S25 1 S26 2 TAS S25 S26 3 Example article number spring charging motor 24 30 V AC DC 3 W L 1 ...

Страница 271: ...440 V AC DC L 48 V AC DC D 220 V to 240 V AC DC H 60 V AC DC E 240 V to 250 V AC DC J UVR with time delay device versions 48 V AC DC and 60 V AC DC can be ordered separately 24 V 30 V DC 110 V to 127 V AC DC N with 24 V UVR M 220 V to 250 V AC DC P Second shunt release ST2 24 V AC DC Q 110 V to 120 V AC DC U 30 V AC DC R 120 V to 127 V AC DC V 48 V AC DC S 220 V to 240 V AC DC W 60 V AC DC T 240 V...

Страница 272: ...y been chosen with a higher rated current than is required for the existing installation with a view to future expansion of the overall installation Rating plug Z option code Rating plug Rating plug L OFF Rating plug with RC function 400 A B04 400 A L04 400 A G04 630 A B06 630 A L06 630 A G06 800 A B08 800 A L08 800 A G08 1000 A B10 1000 A L10 1250 A G12 1250 A B12 1250 A L12 1600 A L16 3VA27 only...

Страница 273: ...catalogs for 3WL10 and 3VA27 see Chapter Reference documents Page 10 For the withdrawable breaker the position signaling switch 400 V AC is delivered as standard with the guide frame The guide frame signaling switch can also be ordered optionally with digital contacts The spring charged signaling switch S21 is delivered with standard contacts It can optionally be replaced by the version with a con...

Страница 274: ...e Ir Delay time tr Pre alarm Ir ST protection Short time delayed short circuit protection Enable Enable tripping Characteristic I t OFF I t ON Operating value Isd Delay time tsd Activate startup Startup operating value Startup time delay INST protection Instantaneous short circuit protection Enable Operating value Ii Activate startup Startup operating value Startup time delay GF protection Ground ...

Страница 275: ...Fw Startup operating value Bw Startup time delay DST Min Angle I NBA protection Current unbalance Enable Operating value Inba Delay time tnba I Enable tripping Vu protection Undervoltage Enable Operating value Uu Delay time tu U Enable tripping Vo protection Overvoltage Enable Operating value Uo Delay time to U Enable tripping V NBA protection Voltage unbalance Enable Operating value Unba Delay ti...

Страница 276: ..._pal 2 Phase sequence Cos Ø Functions External tripping DAS mode arc fault mitigation Reset tripped signal Level 1 main menu Level 2 Level 3 Measured values History Tripping measured values log Tripping history Event Measured values Power Pmax Pmean Qmax Qmean Smax Smean Current Imin Imax Voltage Umin Umax Reset values Power factor p f Measured cos Ø value Frequency Measured frequency value Energy...

Страница 277: ...on Temperature protection Off on Neutral protection Enable Off on Operating value neutral protection Value in Ground fault protection method External current transformer Rating of G_ret transformer Line frequency Values 50 Hz 60 Hz Phase sequence Setting list Module Optional modules Local remote Local CB Bus Metering MF Basic Voltage transformer external unused Rated voltage MIN to MAX Primary vol...

Страница 278: ...Level 3 Data logger 1 Stop event Stop delay time in s MIN to MAX Restart Stop Data logger 2 Stop event Stop delay time in s MIN to MAX Restart Stop System settings Date Time Language New password View User info page Off on Display contrast MIN to MAX in Functions ST command Function time delay MIN to MAX CC command Function time delay MIN to MAX Maintenance Settings Alarms Off on ...

Страница 279: ...ge your body electrostatically immediately before touching an electronic component To do this touch a conductive grounded object e g a bare metal part of a switch cabinet or the water pipe Always hold the component by the plastic enclosure Electronic modules should not be brought into contact with electrically insulating materials such as plastic film plastic parts insulating table supports or clo...

Страница 280: ...ers 3WL10 air circuit breakers 278 Manual 10 2018 L1V30499596002 01 1 ESD seat 2 ESD standing position 3 ESD seat and ESD standing position Protective measures a Conductive floor b ESD table c ESD footwear d ESD smock e ESD bracelet f Cubicle ground connection Figure B 1 ESD work center ...

Страница 281: ...Standard ETU Electronic trip unit G Ground fault ground fault protection GF GF Ground fault protection I Instantaneous instantaneous short circuit protection INST I O Input Output IEC International Electrotechnical Commission INST Instantaneous short circuit protection IP International Protection L Long time delay overload protection LT overload release LT tripping characteris tic Partial overload...

Страница 282: ...hort circuit making capacity Icn Rated breaking capacity rated short circuit breaking capacity Ics Maximum short circuit breaking capacity partial selectivity rated service short circuit breaking capacity Icu Maximum short circuit breaking capacity full selectivity rated ultimate short circuit breaking capacity Icw Rated short time withstand current rated short time current Id Prospective current ...

Страница 283: ...al free air thermal current IU Rated uninterrupted current RA Contact resistance of exposed conductive part ground t1 Time of inrush current t2 Ramp up time tA Safety clearance tg Delay time associated with the adjustable response current trip time associated with ground fault current setting value Tp Trip time delay time time lag class tr Trip time associated with current setting value of adjusta...

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Страница 285: ...95 Closing coil 101 Checking 191 Communication modules 113 Conductive floor 278 Connection bar Cu Al cable 98 Connection bars 96 Connection socket for test devices 52 53 Connection extended 98 Connections Checking 190 Connections rear 96 Control keys 53 Cubicle ground connection 278 Current limiting 15 Current selectivity 50 Current unbalance Protection function 61 D DAS 61 Design Electronic trip ...

Страница 286: ...Ground fault protection 60 Star point 60 I Indication of the breaker status 32 Insulating measures 157 Interlocking Checking 192 Interlocks 125 L Leading changeover switch 109 LED test 188 Locking device 122 Additional 124 to prevent movement of the withdrawable circuit breaker 123 Locking lever 34 Locking mechanism 124 Control panel door 127 M Main circuit connection 96 Main connection Broadened ...

Страница 287: ...lose signaling switch for communication 113 Remote reset magnet 103 Reverse active power protection 63 Rotary coding switch 52 setting 198 S Setting the line frequency setting 199 Short circuit protection Directed 64 Instantaneous 59 Short time delayed 59 Shunt release 101 Checking 191 Shutter 34 SIMARIS design 68 Spring charged signaling switch 110 Spring charging motor 103 Status indicator of sp...

Страница 288: ...3WL10 air circuit breakers 286 Manual 10 2018 L1V30499596002 01 Undervoltage protection 64 Undervoltage release 100 V Voltage unbalance Protection function 64 W Warning displays 53 Warnings Display 54 WBT Training 11 WBT web based training 11 ...

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