Eaton IZM40, Operation And Maintenance Instructional Manual

Page 1: ...covered in individual instruction leaflets specific to the accessory This information is also available from the Moeller Web site at www moeller net de support For application information consult Moe...

Page 2: ...rawout circuit breaker 11 Fixed circuit breaker 14 Circuit breaker operation 15 Section 3 Circuit breaker description and operation 16 Introduction 16 Basic circuit breaker assembly 20 Pole units 20 O...

Page 3: ...ing Spring 22 Figure 25 Cross Section of Conductor and Arc Control System 22 Figure 26 Integral Arc Runner Viewed From Top of Arc Chamber Arc Chute Removed Circuit Breaker Closed 23 Figure 27 IZM Arc...

Page 4: ...Mounted on Cassette 38 Figure 60 Door Escutcheon and Gasket 39 Figure 61 Cassette Mounted Two Way Cable Interlock 39 Figure 62 Drawout Circuit Breaker in Cassette 40 Figure 63 Drawout Circuit Breaker...

Page 5: ...ker Weights 10 Table 3 Rejection Interlock Pin Locations 12 Table 4 IZM Digitrip Trip Units 24 Table 5 IZM Current Sensors and Matching Rating Plugs 25 Table 6 Shunt Trip Ratings 34 Table 7 Spring Rel...

Page 6: ...tracking resistance The drawout IZM 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 co...

Page 7: ...aker not IZM99 or IZM63 Figure 2 Typical IZM Nameplate m warning TYPE IZM CIRCUIT BREAKERS ARE ROBUST AND are PROVIDED WITH SAFETY FEATURES NEVERTHELESS THE VOLTAGES CURRENTS AND POWER LEVELS AVAILABL...

Page 8: ...pecting circuit breakers and their associated assembly a qualified person should also be trained with respect to the hazards inherent to working with electricity and the proper way to perform such wor...

Page 9: ...a cassette first remove the breaker from the cassette using the levering mechanism and drawout rails After the breaker is removed the machine screws passing through the floorpan can be removed On fix...

Page 10: ...IZM20N 08 43 00 54 00 48 00 62 00 IZM93N 10 IZM20N 10 43 00 54 00 48 00 62 00 IZM93N 12 IZM20N 12 43 00 54 00 48 00 62 00 IZM93N 16 IZM20N 16 43 00 54 00 48 00 62 00 IZM93N 20 IZM20N 20 43 00 54 00 4...

Page 11: ...ed the rejection pins will block the insertion of the circuit breaker into the cassette before the levering in mechanism is engaged Molded Rail Supports Extension Rail Cutout Before attempting to push...

Page 12: ...TEST Figure 9 CONNECT Figure 10 The REMOVE position is a position outside the compartment on the cassette s drawout rails where the circuit breaker is not engaged with the levering mechanism The DISCO...

Page 13: ...onnection 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 an...

Page 14: ...aged To remove the circuit breaker from its compartment follow the procedure just described using a counterclockwise ratcheting motion m notice The circuit breaker mechanism is interlocked such that c...

Page 15: ...that the panel on which a fixed circuit breaker is to be mounted is capable of supporting the weight Circuit breaker operation Circuit breakers should be operated manually and or electrically before t...

Page 16: ...breakers utilize six or eight sets of rear primary connections these circuit breakers are available from the factory with several different phase sequences The phase sequence is also labeled on the r...

Page 17: ...ircuit Breaker Features Front and Rear Views 6 1 Baffled Arc Chute Cover 2 Secondary Disconnect 3 Faceplate front cover 4 Integral Lifting Handle 5 Fixed Horizontal Primary Terminal 6 Fixed Primary Te...

Page 18: ...Standard Frame Fixed Circuit Breaker Features Front and Rear Views 1 Baffled Arc Chute Cover 2 Secondary Contact Connector 3 Faceplate front cover 4 Integral Lifting Handle 5 Fixed Vertical Primary T...

Page 19: ...OFF Button push 8 Manual ON Button push 9 Manual Charge Handle 10 Optional Operation Counter 11 Padlockable Levering Device Access Door for Drawout Breaker 12 Color Coded Breaker Position Indicator 1...

Page 20: ...rtion and a fixed portion The exact design configuration depends upon the breaker s frame size IZM63 and IZM99 circuit breakers use two pole units and arc chute assemblies connected mechanically and e...

Page 21: ...ains available after a closing operation Figure 23 Electrically Operated Drawout Circuit Breaker with Front Cover Removed Manual operation On manually operated circuit breakers the closing spring can...

Page 22: ...also available to trip open an electrically operated circuit breaker Refer to Accessory devices on page 34 for more details on both standard and optional devices Electrical Motor Operator Anti pump fe...

Page 23: ...e 27 IZM Arc Plate Assembly Arc chute components are assembled in an insulating jacket that is removable from the top of the circuit breaker as previously described in Lifting circuit breaker on page...

Page 24: ...nt curves to coordinate with a load or system refer to the trip unit instruction book Microprocessor based trip unit IZM circuit breakers use any one of a family of DigitripE RMS trip units whose main...

Page 25: ...evel by sensor rating If the rating plug is removed from the trip unit the circuit breaker will trip if it is carrying current Make certain the rating plug is secured in position with its retaining sc...

Page 26: ...a peak instantaneous current of 25 x In this corresponds to an rms current of 11 x In with maximum asymmetry The making current release is enabled only for the first two cycles following a circuit br...

Page 27: ...hout terminal block If a terminal block for customer use is not required the circuit breaker is supplied with both plug in connectors male and female just described in the two previous paragraphs The...

Page 28: ...release the closing pulse will occur when the mechanism is charged and reset LCS open Voltage must be removed and reapplied to the spring release for subsequent operation 6 To provide selected time de...

Page 29: ...time delays for short time and or ground time functions for testing or non zone interlocking applications a jumper from b 8 to b 9 is required 5 On three pole breakers only having ground fault functio...

Page 30: ...se pulse is initiated If voltage is maintained to the spring release the closing pulse will occur when the mechanism is charged and reset LCS open Voltage must be removed and reapplied to the spring r...

Page 31: ...se pulse is initiated If voltage is maintained to the spring release the closing pulse will occur when the mechanism is charged and reset LCS open Voltage must be removed and reapplied to the spring r...

Page 32: ...If voltage is maintained to the spring release the closing pulse will occur when the mechanism is charged and reset LCS open Voltage must be removed and reapplied to the spring release for subsequent...

Page 33: ...If voltage is maintained to the spring release the closing pulse will occur when the mechanism is charged and reset LCS open Voltage must be removed and reapplied to the spring release for subsequent...

Page 34: ...mounted on a IZM circuit breaker Table 6 Shunt Trip Ratings Control Voltages Operational Voltage Range 70 100 Inrush Power Consumption a Opening Time ms 24 Vdc 17 26 Vdc 250W 35 48 Vdc 34 53 Vdc 250W...

Page 35: ...roviding remote electrical indication if the circuit breaker is open or closed Figure 49 Up to three auxiliary switches can be mounted in the circuit breaker Each switch has two normally open a and tw...

Page 36: ...an overcurrent condition Opening as a result of a circuit breaker s manual open button shunt trip or undervoltage release does not cause the overcurrent trip switch to operate The overcurrent trip sw...

Page 37: ...wed through the front cover Figure 53 The customer supplies the key lock The provisions available are for Kirk Castell Ronis or CES Figure 53 Cover Mounted Key Lock and Operations Counter Cassette loc...

Page 38: ...reaker is levered from the CONNECT position the shutters automatically close to cover the fixed primary contacts Figure 56 When the circuit breaker is levered into the cassette the shutters automatica...

Page 39: ...e when others are closed A lever assembly is mounted on each breaker that interfaces with the pole shaft and the tripper bar The lever assemblies are interconnected with either cables depending upon t...

Page 40: ...y interfaces to the drawout circuit breaker including automatic primary and secondary connections For the IEC circuit breaker a cassette style using horizontal stabs and horizontal customer bus bar te...

Page 41: ...upport Figure 64 Drawout Cassette Features Front and Rear Views Front View Rear View 1 Extension Rails 2 Extension Rail Cutout 3 Secondary Plug in Connectors 4 Secondary Terminal Blocks 5 Arc Hood 6 O...

Page 42: ...dimensions associated with all fixed circuit breakers and any appropriate primary bus connections can be found in a separate document The installation of a fixed circuit breaker was discussed in Sect...

Page 43: ...the equipment if there are earlier opportunities If possible make a visual inspection each time a circuit breaker compartment door is opened and especially when a circuit breaker is withdrawn on its...

Page 44: ...est function the Digitrip Test Kit or the hand held IZM Functional Test Kit Review test kit instructions for the trip unit Instruction leaflet Section 1 2 or 1 3 applies for instantaneous test procedu...

Page 45: ...r 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...

Page 46: ...cribed here do not under ordinary circumstances require any assistance beyond the appropriate instructional material If further assistance is required however contact your Moeller representative Ratin...

Page 47: ...vertical adapters must be removed Each primary disconnect finger cluster is removed by loosening the two hex head bolts with a 10 mm wrench These bolts do not have to be completely removed to slide t...

Page 48: ...ed Contact Moeller service center Circuit 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 i...

Page 49: ...nd or typecode is not known it would help to refer to a pictorial and or graphic reference Also include the circuit breaker type General Order number and other information as shown on the nameplate on...

Page 50: ...50 Operation and maintenance of IZM low voltage air circuit breakers MOELLER www moeller net de support 10 09 AWB1230 1605 Effective October 2009...

Page 51: ...51 10 09 AWB1230 1605 Effective October 2009 Operation and maintenance of IZM low voltage air circuit breakers MOELLER www moeller net de support...

Page 52: ...w voltage air circuit breakers Moeller GmbH Industrieautomation 2009 by Moeller GmbH nderungen vorbehalten Subject to alterations 10 09 AWB1230 1605EN Z8700 Moon Doku Heng Printed in USA 10 09 10 09 A...