Eaton IN63 User Manual Download

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Instruction Manual

MN013014EN

IZM63 / IN63 low voltage air circuit breaker

IZM63 / IN63

Summary of Contents for IN63

Page 1: ...Instruction Manual MN013014EN IZM63 IN63 low voltage air circuit breaker IZM63 IN63 ...

Page 2: ... are covered in individual instruction leaflets specif ic to the accessory This information is also available from the Eaton Web site at www eaton com For application information consult Eaton or see applica ble Product Guides Technical Documents and Industry Standards Safety All safety codes safety standards and or regulations must be strictly observed in the installation operation and main tenan...

Page 3: ...ondary jumpers 5 2 7 Installing drawout circuit breaker 6 2 7 1 Circuit breaker positioning 6 2 7 2 Levering circuit breaker 8 2 8 Fixed circuit breaker 11 2 9 Circuit breaker operation 11 2 10 Technical data 12 SECTION 3 CIRCUIT BREAKER DESCRIPTION AND OPERATION 15 3 1 Introduction 15 3 2 Basic circuit breaker assembly 19 3 3 Operating mechanism 19 3 3 1 Manual operation 20 3 3 2 Electrical opera...

Page 4: ...RVES 32 SECTION 6 WIRING DIAGRAMS 43 SECTION 7 INSPECTION AND MAINTENANCE 51 7 1 General 51 7 2 General cleaning recommendations 51 7 3 When to inspect 51 7 4 What to inspect 51 7 4 1 Functional field testing 52 7 4 2 Arc chute inspection 52 7 4 3 Primary contact inspection 53 SECTION 8 TROUBLESHOOTING 55 8 1 Introduction 55 Instruction Manual MN013010SC ...

Page 5: ...cs and arc tracking resistance The drawout IZM63 IN63 circuit breaker is a through the door design having three breaker positions with the compartment door closed CONNECT TEST DISCONNECT and one position out of its compartment on extension rails REMOVE The operating mechanism is a two step stored energy mechanism either manually or electrically operated When withdrawn on captive compartment casset...

Page 6: ...quipment its operation and the associated haz ards should be permitted to work on the equipment Additionally only qualified personnel should be permitted to install or operate the equipment 2 Always be certain that the primary and secondary circuits are de energized or the circuit breaker is removed to a safe work location before attempting any maintenance 3 For maximum safety only insert a comple...

Page 7: ...packaging until the breakers are ready for inspection testing and or installation When ready to inspect and install the circuit breaker carefully remove the banding straps and lift off the cardboard box Remove any additional packing material and internally packed documentation The circuit breaker and or cassette are mounted to a wooden shipping pallet On drawout circuit breakers shipped without a ...

Page 8: ...he integral molded lifting handles on both sides of the cir cuit breaker Every effort should be made during lifting to minimize circuit breaker swing and tilt If the circuit breaker is to be lifted onto compartment exten sion rails follow the instructions in Section 2 7 Installing drawout circuit breaker 2 5 Circuit breaker inspection All circuit breakers once removed from their shipping container...

Page 9: ...ble rejection interlocks Doing so and using a lower capacity circuit breaker in an incompatible cassette could result in an electrical fault that could result in death bodily injury and or equipment damage Molded rail supports Extension rail cutout Figure 2 3 One side of drawout circuit breaker properly seated on extension rail The rejection interlocks are steel pins in the floor of the circuit br...

Page 10: ...sion rails Be certain that the circuit breaker s four molded dra wout rail supports are fully seated in the extension rail cutouts on both sides Figure 2 3 Do not remove the lifting yoke from the circuit breaker until it is properly seated on the rails Once the circuit breaker is on the extension rails and the lifting yoke is removed proceed with the rest of the circuit breaker installation 2 7 1 ...

Page 11: ...mary Connections Not Made Only Ground Connection Made Breaker Still Behind Door Typical Storage Position Circuit Breaker Side View Compartment Front Door Secondary Connection Made Rear of Compartment Primary Connections Not Made Breaker and Trip Unit Testing Primary Connection Not Made Secondary and Ground Connections Made Circuit Breaker Side View Figure 2 5 DISCONNECT Position Figure 2 6 TEST po...

Page 12: ...uare drive and ratchet which is not provided Figure 2 9 As long as the levering access door is raised the circuit breaker is held trip free Begin by rotating the levering in screw to the full counterclockwise DISCONNECT position Close the compartment door and begin levering the break er into its different positions using a clockwise ratcheting motion The circuit breaker can be levered with the com...

Page 13: ...automatic primary and sec ondary connections For the IEC circuit breaker a cassette style using horizontal stabs and horizontal customer busbar terminals is available as standard Figure 2 11 The cassette terminal connections can be adapted to vertical busbar connections with a variety of optional vertical adapters Mounting locations for cell TOC switches safety shutters mechanical interlocks and k...

Page 14: ...re 2 11 Drawout cassette features front and rear views 2 1 4 3 6 5 8 7 1 1 2 2 3 4 5 6 6 7 7 8 9 9 9 10 10 10 4 Front View Rear View Extension Rails Extension Rail Cutout Secondary Plug in Connectors Secondary Terminal Blocks Arc Hood Optional Cell TOC Switch Optional Key Interlock Earthing Bar Open Safety Shutters Primary Terminals ...

Page 15: ...awout circuit break er s type secondary connector Both secondary connection devices are mounted at the top front of the circuit breaker The fixed circuit breaker frame has two mounting feet one on each side to permit the fixed circuit breaker to be securely mounted Each mounting foot has two slotted mounting holes that are used to bolt the circuit breaker securely in place Use either M10 or 3 8 in...

Page 16: ...perature C 40 45 50 55 60 70 IZM63 5000A 5000 5000 5000 5000 5000 5000 IZM63 6300A 6300 6300 6200 6000 5600 5100 Max operating current A ambient temperature 40 C Circuit breaker frame size IZM63 Recommended bus bar quantities and sizes mm In 5000 50 5 10 x 100 5 25 x 6 6300 63 6 10 x 100 6 25 x 6 Bus bar dimensions The bus bar sizes are shown in the table below This table uses data specified by IE...

Page 17: ...Drawout type IZM63N3 V P50 4 10 400 1000 IZM63H3 V P50 4 10 400 1000 IZM63N3 V P63 4 10 620 1550 IZM63H3 V P63 4 10 620 1550 Based on RAC RDC 1 30 the total loss is under the full rated current Derating factors IZM63 IN63 circuit breakers can be applied at their full voltage and current ratings up to a maximum attitude of 2000 meters above sea level When installed at higher attitudes the ratings a...

Page 18: ...s intend ed to provide a guideline for the installation of fixed type or drawout type circuit breakers in an enclosure The diagram and related dimensions can be used for reference Electrical clearance dimension mm Recommended safety clearances Recommended enclosure clearance and ventilation The typical enclosure drawing and dimension table is intend ed as a guideline for designing a circuit breake...

Page 19: ...oth configurations and will be discussed in this section The mounting features unique to the drawout and the fixed configurations will be covered individually in Sections 4 and 5 respectively Controls and indicators for both drawout and fixed circuit breakers are functionally grouped on the front of the circuit breaker The front escutcheon faceplate covers all continuous current ratings through 63...

Page 20: ... 7 6 2 5 9 10 5 2 1 4 3 6 7 8 9 10 Fixed primary terminal with optional vertical adapter Arc chamber Mounting foot Circuit breaker nameplate Tripper bar Baffled arc chute cover Secondary disconnect Faceplate front cover Integral lifting handle Fixed horizontal primary terminal Figure 3 2 Typical fixed circuit breaker features front and rear views ...

Page 21: ...ard frame fixed circuit breaker features front and rear views 5 2 1 4 3 10 7 6 9 8 Arc chamber Mounting foot Circuit breaker nameplate Phase identification labels Tripper bar Baffled arc chute cover Secondary contact connector Faceplate front cover Integral lifting handle Fixed vertical primary terminals with optional vertical adapter 6 5 1 9 9 9 9 4 10 7 8 1 3 4 10 7 2 ...

Page 22: ...t indicator Three accessory windows Trip unit Contact status open close Spring status charged discharged Manual OFF button push Manual ON button push Manual charge handle Optional operation counter Padlockable levering device access door for drawout breaker Color coded breaker position indicator Nameplate Trip unit test port Trip unit cover Plastic cover is provided which allows the settings to be...

Page 23: ...on the front of the case and is electrically isolated and insulated from current contact struc tures It is covered by an insulating front cover 3 3 Operating mechanism The IZM63 IN63 operating mechanism is based on the proven cam and spring design It is easily accessed by removing few cover screws and the front cover Figure 3 6 The mechanism is a two step stored energy mecha nism Potential energy ...

Page 24: ...For more details on these devices refer to Section 4 1 and 4 2 in this booklet An electrical operator that is used to charge the closing spring automatically can be added to a manually operated circuit breaker in the field Figure 3 8 Manually operated cir cuit breakers are pre wired to accept this addition 3 3 2 Electrical operation For electrically operated circuit breakers the springs are normal...

Page 25: ...ns PXR 20 PXR 25 LSIG protection Yes Yes Disable I Yes Yes GF protection Option Option GF alarm Option Option Display Yes Yes Programmable No No Current metering Yes Yes Power energy metering No Yes Power quality metering No No Communication Yes Yes 3 4 2 Rating plug A rating plug is not required with PXR trip units See frame rating module description 3 4 3 Current sensors Rogowski coil type curre...

Page 26: ...layed on the LCD screen and In rating printed on the frame rating module battery cover MUST ALWAYS AGREE 3 4 5 Trip actuator The low energy trip actuator is a small electromagnetic device that provides the necessary mechanical force to ini tiate the tripping action of the circuit breaker The electronic trip unit provides a pulse to the coil of the trip actuator allowing the mechanical tripping act...

Page 27: ...plied with both plug in connectors male and female just described in the two previous paragraphs The plug in connectors are joined and attached to the top portion of the circuit breaker The customer can plug secondary wiring with crimp on connectors into the back of the plug in connec tors subsequently the connections to the circuit breaker can be quickly joined or separated as required 2 With ter...

Page 28: ...24 IZM63 IN63 low voltage air circuit breaker MN013014EN May 2021 www eaton com cn Section 4 Dimensional drawings IZM63 IN63 fixed type dimensions and horizontal board dimensions 3P 5000 6300A ...

Page 29: ...25 IZM63 IN63 low voltage air circuit breaker MN013014EN May 2021 www eaton com cn Section 4 Dimensional drawings IZM63 IN63 fixed type dimensions and horizontal board dimensions 4P 5000 6300A ...

Page 30: ...ay 2021 www eaton com cn Section 4 Dimensional drawings IZM63 IN63 fixed type panel cutout and external vertical board dimensions 3P and 4P 5000 6300A Max distance to isolation surface Door cut out Door cut out Door panel mounting hole Door panel mounting hole ...

Page 31: ...e air circuit breaker MN013014EN May 2021 www eaton com cn Section 4 Dimensional drawings IZM63 IN63 Withdrawable Type Dimensions 3P and 4P 5000 6300A Notes de Drawer switch position f Recommended minimum mounting space f e d ...

Page 32: ... 1 19 0 6 50 165 10 11 50 292 10 Mounting hole Connected position Test position Withdrawn position Disconnected position Right View Panel cutout size and circuit breaker position Front View Mounting hole Door cut out Door cut out Mounting hole Mounting hole Note 1 Mperial dimensions are Inches on top metric dimensions are mm bottom 2 All dimensions are reference only 3 Tolerance range is shown as ...

Page 33: ...aces Ø11 10 2 38 1 143 2 210 177 8 177 8 120 7 177 8 177 8 322 5 153 6 4 x 8 9 4 x 19 1 50 3 4 x 13 5 25 4 25 4 279 4 231 9 322 5 6 4 384 1 621 5 Mounting plane Preferred mounting positioning Optional mounting locations Required mounting locations Required mounting locations Mounting plane Bottom view 3 pole mounting locations Rear view Optional earth bus mounting location replace existing with M8...

Page 34: ... 241 3 120 7 241 3 241 3 384 1 475 5 350 351 4 4 x 8 9 6 4 4 x 19 1 50 3 4 x 13 3 25 4 231 9 25 4 279 3 351 3 127 8 Ø22 4 6 places 6 places 4 places 4 places Preferred mounting positioning Preferred mounting positioning Mounting plane Mounting plane Required mounting locations 4 pole mounting locations Bottom view Rear view Optional earth bus mounting location replace existing with M8x25 hex bolts...

Page 35: ...tage air circuit breaker MN013014EN May 2021 www eaton com cn Section 4 Dimensional drawings IZM63 IN63 withdrawable type cassette horizontal board wiring dimensions 3P 5000 6300A Maximum distance 101 6 Busbar fixture Item ...

Page 36: ...e 85 C will cause over temperature trip 6 This curve is for 50Hz 60Hz applications 7 These curves are comprehensive for series IZM63 IN63 circuit breakers including all frame sizes ratings and constructions The total clearing times shown include the response time for trip unit the breaker opening and the interruption of the current IZM63 IN63 V P PXR20 25 Long Delay L and Short Delay S Curves L Pr...

Page 37: ...Ir with 5 tolerance 2 SDPU 1 5x to 10x of Ir have 100 10 tolerance 3 LD Time 0 5s to 24s have 100 0 30 tolerance 4 SD Slope I T The short pickup points have 10 tolerance time setting from 0 1s to 0 5s with steps of 0 1s except 0 2s tolerance is 100 0 30 except 0 1s has tolerance 100 0 40 5 I T slopes flattens out at 8x of Ir for top of band with FLAT time minimum value prevailing for bottom of ban...

Page 38: ...etermined by the interrupting rating of the circuit breaker 6 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 7 This curve is for 50Hz 60Hz applications 8 These curves are comprehensive for series IZM63 IN63 circuit breakers including all frame sizes ratings and constructions The total clearing times shown include the response time for trip unit th...

Page 39: ...High Instantaneous trip 5 The total Instantaneous clearing times shown are conservative and consider the maximum response times of the trip unit the circuit breaker opening and the interruption of the current under factors that contribute to worst case conditions like maximum rated voltages single phase interruption and minimum power factor Faster clearing times are possible depending on the speci...

Page 40: ...mined by the interrupting rating of the circuit breaker 6 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 7 This curve is for 50Hz 60Hz applications 8 These curves are comprehensive for series IZM63 IN63 breakers including all frame sizes ratings and constructions The total clearing times shown include the response time for trip unit the breaker op...

Page 41: ...rent Rating In 6 The end of the curve is determined by the interrupting rating of the circuit breaker 7 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 8 This curve is for 50Hz 60Hz applications 9 These curves are comprehensive for series IZM63 IN63 circuit breakers including all frame sizes ratings and constructions The total clearing times shown ...

Page 42: ...e Mode Trip 5 The end of the curve is determined by the interrupting rating of the circuit breaker 6 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 7 This curve is for 50Hz 60Hz applications 8 These curves are comprehensive for series IZM97 99 circuit breakers including all frame sizes ratings and constructions The total clearing times shown inclu...

Page 43: ...the other break point and shape of the curve 6 If the short delay time is longer than long delay time the short delay trip time will follow the long time setting 7 If long delay thermal memory is enabled trip times may be shorter than indicated in this chart 8 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 9 This curve is for 50Hz 60Hz application...

Page 44: ...lue prevailing for bottom of band For all curves the lower flat response time value projected to I T line will determine the other break point and shape of the curve 6 If long delay thermal memory is enabled trip times may be shorter than indicated in this chart 7 Curves applies from 20 C to 70 C ambient Temperatures above 85 C will cause over temperature trip 8 This curve is for 50Hz 60Hz applica...

Page 45: ...Ir have 100 10 tolerance 3 LD Time 0 5s to 24s have 100 0 30 tolerance 4 SD Slope I T The short pickup points have 10 tolerance time setting from 0 1s to 0 5s with steps of 0 1s except 0 2s tolerance is 100 0 30 except 0 1s has tolerance 100 0 40 5 I T slopes flattens out at 8x of Ir for top of band with FLAT time minimum value prevailing for bottom of band For all curves the lower flat response t...

Page 46: ... 2 On a 4P circuit breaker the neutral current sensor has the same style and wiring method as the phase sensor located within the circuit breaker frame no need to connect the secondary terminals 11N1 12N2 Latch check switch Shunt trip Spring closing release UVR 2nd shunt trip Onboard ModBus Reserved ARCON Reserved Reserved Secondary Terminals Secondary Terminals PXR20 25 wiring diagrams See Note1 ...

Page 47: ...r The Spring Release internal electronics pulse the SR coil and then provides a high impedance circuit This provides anti pumping 4 When the spring discharges its energy the motor switch will re energize the charging motor until the spring is charged again 5 To detect the presence of voltage Health Light use Omron Red indicator LED Port C22 L R 120 for 120 Vac application For 230 Vac application u...

Page 48: ... voltage air circuit breaker MN013014EN May 2021 www eaton com cn Section 6 Wiring diagrams Under voltage release IZM series circuit breaker Monitored Voltage 94 93 Notes 1 Treated as the positive voltage for DC ratings ...

Page 49: ...or Remote Indication Maintenance Mode indication Contact rating 1 A 120 Vac 1 A 24 Vdc and 0 5 A 230 Vac 2 For the PXR20 25 the Alarm 2 is for High Load alarm Ground Fault alarm Contact rating 1 A 120 Vac 1 A 24 Vdc and 0 5 A 230 Vac 3 For the PXR20 25 the Alarm 3 is for Trip N O contact Contact rating 1 A 120 Vac 1 A 24 Vdc and 0 5 A 230 Vac 4 If the control voltage is 24 Vdc the trip unit should...

Page 50: ... a External Neutral Sensor b External Neutral Sensor IZM series circuit breaker PXR 11 N1 N1 12 N2 N2 Notes1 2 Sensor is customer wired to sense neutral currents This is required for 3 pole 4 pole ACB no need to buy the external sensor Two external neutral transformers must be purchased for the two N bars of the IZM63 circuit breakers with serial connection to 11 12 ...

Page 51: ... maximum length of this wiring to remotely arm the switch or alternate relay contact is 63 78 feet 3 m Use 20 AWG wire or larger 4 A remote Stack Light Annunciator panel or other remote indication device can be connected to verify that PXR is in the Maintenance Mode 5 The relay in the PXR release makes when in Maintenance Mode Contact is rated 1 A 120 Vac 1 A 24 Vdc and 0 5 A 230 Vac 6 The PXR rel...

Page 52: ...LA LB LC PT MODULE BREAKER A 0 600 L L INPUT B C To additional breakers 16 max Secondary Contacts 1 N 3 5 30 PTVB 29 PTVA 31 PTVC TP2 32 PTVN LN LA LB LC PT MODULE BREAKER A 0 600 L L INPUT B C To additional breakers 16 max Secondary Contacts 1 3 5 30 PTVB 29 PTVA 31 PTVC TP2 32 IZM circuit breaker 3 pole 3 wire IZM circuit breaker 3 pole or 4 pole 4 wire ...

Page 53: ...e 3 Notes 1 Twisted together AWG 14 to 20 copper wire Route the Zone Interlock wiring separate from power conductors DO NOT GROUND any Zone Interlock wiring 2 The maximum distance between two farthest breakers on different zones from the Z out downstream to the Z in upstream terminals is 250 feet 75 m 3 A maximum of 20 breakers may be contained in parallel in one zone 4 Provide a self interlocking...

Page 54: ...eign objects can be driven into areas such as the breaker mech anism where additional friction sources could create prob lems Never use a wire brush to clean any part of the circuit breaker 7 3 When to inspect Do not wait for specific scheduled periods to visually inspect the equipment if there are earlier opportunities If possible make a visual inspection each time a circuit breaker compart ment ...

Page 55: ... s function Charge the breaker mechanism springs either using the charging handle or the motor operator Close the breaker by applying rated voltage to the spring release accessory and verify closing by noting the state of the indicating flag Charge the breaker mechanism springs either using the charging handle or the motor operator If using the motor operator disconnect power to it to prevent auto...

Page 56: ... can be viewed by looking directly down into the arc chamber Figure 8 3 and Figure 8 4 A contact wear indicator is provided for each primary contact and indicates whether or not the contact should be replaced Inspection of the contacts using the contact wear indicators is conducted only with the circuit breaker closed Figure 8 5 NOTICE When making a contact wear inspection alw ays make the inspect...

Page 57: ...ntact wear indicator with circuit breaker closed Side to Side Ledge Side to Side Ledge Contact Wear Inspection Area ledge not visible under contacts Contact Wear Inspection Area ledge now becoming visible under contacts Contact Wear Indicator Contacts Closed and in Good Condition Contact Wear Indicator Contacts Closed and Wear is Indicated ...

Page 58: ...rcuit breaker makes no attempt to close with either local manual or remote controls springs do not discharge Closing spring not fully charged check SPRING CHARGED indicator Charge spring manually check voltage to electrical opera tor replace electrical operator if faulty If equipped with undervoltage release undervoltage release is not energized or is faulty Unplug undervoltage release from mounti...

Page 59: ...ser THERE ARE NO UNDERSTANDINGS AGREEMENTS WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES In no event ...

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Eaton IN63, Instruction Manual

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