Moeller IZM1, IZM, IZM2-XAV32, IZM2, IZM3 Operating Manual
Circuit-Breaker IZM
Operating Manual
08/07 AWB1230-1407GB
All brand and product names are trademarks or registered
trademarks of the owner concerned.
st
published 2001, edition date 03/01
1
nd
2
edition 10/02
rd
3
edition 06/05
st
4
edition 08/07
See revision protocol in the “About this manual“ chapter
© 2001 by Moeller GmbH
Production: Oliver Fiebag-Elias, Heidrun Riege, Ingo Meyer
Translation: Nigel Green, David Long
All rights reserved, including those of the translation.
No part of this manual may be reproduced in any form
(printed, photocopy, microfilm or any other process) or processed,
duplicated or distributed by means of electronic systems without
written permission of Moeller GmbH, Bonn.
Subject to alteration without notice.
Printed on bleached cellulose. 100 % free from chlorine and acid.
Warning!
Dangerous electrical voltage!
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally restarted.
• Verify isolation from the supply.
• Earth and short circuit.
• Cover or enclose neighbouring units that are live.
• Danger if spring is charged! Discharge spring.
• Follow the engineering instructions (AWA/AWB) of the device
concerned.
• Only suitably qualified personnel in accordance with
EN 50110-1/-2 (VDE 0105 Part 100) may work on this
device/system.
• Before installation and before touching the device ensure
that you are free of electrostatic charge.
• Connecting cables and signal lines should be installed so
that inductive or capacitive interference do not impair the
automation functions.
• Suitable safety hardware and software measures should be
implemented for the I/O interface so that a line or wire
breakage on the signal side does not result in undefined
states in the automation devices.
• Deviations of the mains voltage from the rated value must not
exceed the tolerance limits given in the specifications,
otherwise this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with IEC/EN 60 204-1
must be effective in all operating modes of the automation
devices. Unlatching the emergency-stop devices must not
cause restart.
• The electrical installation must be carried out in accordance
with the relevant regulations (e. g. with regard to cable cross
sections, fuses, PE).
• All work relating to transport, installation, commissioning and
maintenance must only be carried out by qualified personnel.
(IEC 60364 and HD 384 and national work safety
regulations).
Moeller GmbH
Safety instructions
Contents
0 About this manual 0 - 1
1 Construction 1 - 1
Circuit-breaker 1 - 1
Withdrawable unit 1 - 2
2Labels 2 - 1
Circuit-breaker equipment label 2 - 1
Circuit-breaker label 2 - 1
Identification of the control unit 2 - 2
Rating plug label 2 - 3
Withdrawable unit label 2 - 3
3 Standards and regulations 3 - 1
4 Transport 4 - 1
5 Mounting 5 - 1
Installation 5 - 1
– Mounting position 5 - 1
– Mounting on horizontal surface 5 - 1
– Mounting on a vertical surface with mounting brackets 5 - 2
Safety clearances 5 - 4
– Use in IT systems 5 - 5
Connecting bars 5 - 7
– Horizontal connection 5 - 7
– Flange connection 5 - 7
– Front connection 5 - 8
– Vertical connection 5 - 10
Connection of main conductors 5 - 15
Auxiliary conductor connection 5 - 16
– Plug connector 5 - 16
– Sliding contact module 5 - 17
– Control circuit plug 5 - 17
Wiring on withdrawable unit 5 - 19
– Assembly with control circuit connections 5 - 19
– Order numbers 5 - 19
Connection of protective conductor 5 - 21
Changeover of fixed mounting circuit-breaker
into withdrawable circuit-breaker 5 - 21
Conversion 5 - 22
6 Commissioning 6 - 1
Preparation of withdrawable circuit-breaker 6 - 1
– Inserting the circuit-breaker in withdrawable unit 6 - 1
– Position of the circuit-breaker in the withdrawable unit 6 - 2
– Release racking handle/withdraw racking handle 6 - 3
– Circuit-breaker to connected (CONNECT) position 6 - 3
– Insert racking handle 6 - 3
Charging the spring 6 - 4
Checklist for commissioning 6 - 4
Closing 6 - 5
Switch off 6 - 5
Tripping by overcurrent release 6 - 6
Re-starting a tripped circuit-breaker 6 - 7
Switching off and discharging the storage spring 6 - 8
Troubleshooting 6 - 9
7 Frame sizes, dimension drawings 7 - 1
Overview external dimensions 7 - 1
IZM(IN)...1-..., fixed-mounting, 3- and 4-pole 7 - 2
IZM(IN)...1-..., withdrawable, 3- and 4-pole 7 - 4
IZM(IN)...2-..., fixed-mounting, 3 and 4 pole 7 - 6
IZM(IN)...2-..., withdrawable, 3 and 4 pole 7 - 8
IZM(IN)...3-..., fixed-mounting, 3- and 4-pole 7 - 10
IZM(IN)...3-..., withdrawable, 3- and 4-pole 7 - 12
External current transformer for N-conductor 7 - 14
Voltage transformers 7 - 14
Further dimension drawings 7 - 14
8 Circuit diagrams 8 - 1
Terminal assignment, accessories 8 - 1
Auxiliary and control switches 8 - 2
Signal switch 8 - 2
Voltage release/electrical switch-on inhibit 8 - 3
Closing release/electrical ON 8 - 3
Motor operator 8 - 4
Remote reset coil 8 - 4
Protection circuit for overcurrent release XZMU, XZMD 8 - 5
– With Breaker Status Sensor (XBSS) and metering
module XMH 8 - 5
– Only metering module XMH 8 - 6
– Breaker Status Sensor (XBSS) only 8 - 6
9 Electronic components 9 - 1
Overcurrent release 9 - 1
– Overview of functions 9 - 1
– Overcurrent release for system protection XZMA
(IZM…-A…) 9 - 2
– Overcurrent release with selective protection XZMV
(IZM…-V…) 9 - 5
– Overcurrent release for universal protection XZMU
(IZM…-U…) 9 - 8
– Digital release XZMD (IZM…-D…) 9 - 12
– Order numbers 9 - 14
– Indications 9 - 15
– Protective functions 9 - 16
– Displays 9 - 20
– Rated current module 9 - 35
– Earth-fault protection modules 9 - 36
– Removing the overcurrent release 9 - 39
– Internal self-test of the overcurrent tripping function
(XZMV, XZMU, XZMD) 9 - 42
– Sealing and locking equipment 9 - 43
Additional communication features 9 - 44
– System architecture 9 - 44
– Internal modules 9 - 45
– External expansion modules 9 - 57
Current transformer 9 - 65
– Retrofitting the internal neutral CT 9 - 65
– External current transformer for neutral conductor 9 - 67
– Voltage transformers 9 - 67
– External summation transformer 9 - 70
External supply voltage 9 - 71
Parameter assignment module 9 - 72
– Application 9 - 72
– Design 9 - 72
– Indications 9 - 72
– Connection versions 9 - 72
– Power supply 9 - 74
– Article numbers 9 - 74
Hand-held test unit 9 - 75
– Design 9 - 75
– Preparations 9 - 75
– Connection 9 - 76
– Power supply 9 - 76
– Mains voltage reconnection 9 - 77
– Operation 9 - 77
– Follow-up work 9 - 78
– Article numbers 9 - 78
08/07 AWB1230-1407D I
10 Reclosing lockout and remote reset 10 - 1
Manual reset of the reclosing lockout 10 - 1
Automatic reset of reclosing lockout 10 - 2
Retrofitting automatic reset 10 - 3
– Installing reset mechanism 10 - 3
Retrofitting the remote reset option 10 - 4
– Fitting 10 - 4
– Connecting wires 10 - 6
– Function test 10 - 6
– Updating the options label 10 - 6
11 Control switch 11 - 1
Signalling switches 11 - 1
– Mounting signalling switches 11 - 2
– Mounting signalling switches at trip unit 11 - 2
Control switches 11 - 3
Communication switches 11 - 3
Connecting wires 11 - 3
12 Motor operator 12 - 1
Mechanical operations counter 12 - 2
Motor cut-off switch on the operating panel 12 - 3
Updating the options label 12 - 4
13 Voltage releases, closing coil, electrical ON 13 - 1
Overview 13 - 1
Retrofitting voltage releases 13 - 3
Fitting of optional signalling switch on the
voltage release 13 - 3
Setting delay times on undervoltage release 13 - 4
Installation of cut-off switch for overexcited
shunt release and closing coil 13 - 4
Retrofitting Electrical ON 13 - 5
Mechanical function test 13 - 6
Connecting wires 13 - 6
Finally 13 - 7
Electrical function test 13 - 7
Updating the options label 13 - 8
Capacitor storage device 13 - 8
14 Indicator and operating elements 14 - 1
Locking set 14 - 1
– Retrofitting of access inhibiter over mechanical
ON/OFF button 14 - 2
– Locking device for Mechanical OFF/ON button 14 - 2
Emergency-Stop mushroom-headed pushbutton 14 - 3
Retrofitting for key operation for mechanical ON or OFF 14 - 3
Electrical ON pushbutton 14 - 3
Mechanical operations counter 14 - 3
Motor cut-off switch 14 - 3
15 Locking devices 15 - 1
Safety locks 15 - 1
– Retrofitting the interlocking mechanism in the
OFF position (operating panel) – safe OFF 15 - 2
– Retrofitting safety lock for electrical ON 15 - 5
– Retrofitting for key operation for mechanical
ON or OFF 15 - 5
– Retrofitting locking device against moving from the
disconnected position 15 - 5
– Retrofitting device for locking in the
OFF-position (panel door) 15 - 10
– Retrofitting locking device for racking handle 15 - 11
– Retrofitting locking device for reset button 15 - 13
Equipment for padlocks 15 - 14
– Locking bracket for “Safe OFF” 15 - 15
– Locking device for shutters 15 - 16
– Locking device for guide rails 15 - 17
– Locking device for racking handle 15 - 18
– Locking device for spring charging lever 15 - 18
– Locking device for Mechanical OFF/ON button 15 - 18
16 Sealing fixtures 16 - 1
17 Locking devices 17 - 1
Locking device to prevent racking with panel door open 17 - 2
Panel door interlock 17 - 2
– Fit bolt 17 - 2
– Panel door interlock drill pattern 17 - 4
– Fitting catch on panel door 17 - 5
– Function check 17 - 5
Retrofitting access inhibiter over mechanical
ON and OFF button 17 - 6
18 Mutual mechanical interlocking 18 - 1
Configurations 18 - 3
– General notes 18 - 3
– Two circuit-breakers against each other 18 - 4
– Three circuit-breakers among each other 18 - 5
– Three circuit-breakers among each other 18 - 6
– Three circuit-breakers against each other 18 - 7
– Three circuit-breakers, two of them against
each other 18 - 8
Retrofitting interlocking module 18 - 9
– Installing intermediate shaft and coupling 18 - 9
– Installing interlocking module 18 - 11
– Mounting the Bowden cables 18 - 13
– Function test 18 - 15
19 Accessories for withdrawable unit 19 - 1
Shutters 19 - 1
– Retrofitting 19 - 1
Coding circuit-breaker - withdrawable unit 19 - 5
– Rated current coding 19 - 5
– Option-related coding 19 - 6
Position signalling switch for withdrawable unit 19 - 9
20 Phase barriers 20 - 1
21 Arc chute covers 21 - 1
Retrofitting 21 - 1
22 Door sealing frame IP41 22 - 1
23 Shrouding cover IP55 23 - 1
24 Maintenance 24 - 1
Preparation for maintenance 24 - 2
– Switch off and discharge the spring 24 - 2
– Remove the circuit-breaker from the withdrawable unit 24 - 3
Checking arc chutes 24 - 4
Check contact wear 24 - 6
Replacing pole assembly 24 - 6
– Remove front panel 24 - 6
– Remove arc chutes 24 - 6
– Removing pole assemblies 24 - 7
– Installing pole assemblies 24 - 10
– Article numbers on request 24 - 13
– Fitting front panel 24 - 13
– Mechanical function test 24 - 13
– Fitting arc chutes 24 - 13
Replacing operating system 24 - 13
25 Disposal 25 - 1
Disposal of IZM circuit-breakers 25 - 1
26 Forms 26 - 1
27 Abbreviations 27 - 1
28 Glossary 28 - 1
29 Index 29 - 1
II 08/07 AWB1230-1407D
0 About this manual
List of modifications
Edition date Page Description
10/02 All Revision of complete manual
06/05 All Revision of complete manual
08/07 All Revision of complete manual
Note
These instructions do not purport to cover all details or variations in
equipment, nor to provide for every possible contingency to be met
in connection with installation, operation or maintenance.
Should further information be desired or should particular problems
arise which are not covered sufficiently for the Purchaser's
purposes, the matter should be referred to the local Moeller Sales
Office.
Our Field Service personnel are available for maintainance or retrofitting of your circuit-breakers. To contact Field Service:
a chapter 26
Danger
Hazardous voltage!
Can cause death or serious personal injury as well
as damage to device and equipment.
Before working on this device the system must be
switched off.
Danger if spring is charged!
Discharge spring.
Symbols
Warning
Dangerous electrical voltage!
Safety warning
Danger by crane transport
Warning against personal injury
Danger of injury
CE-mark
Flathead screwdriver
10 Nm
1
Crosstip screwdriverPhilips (PH),
PoziDriv (PZ)
Torx screwdriver (T)
Hexagon socket screwdriver
Tightening torque
Cable tie
Complete by hand
First step of action sequence
08/07 AWB1230-1407GB 0 – 1
0 – 2 08/07 AWB1230-1407GB
1 Construction
1.1 Circuit-breaker
(1) Arc chute a page 24 – 4
(2) Carrying handle
(3) Identification tags
(4) Motor cut-off switch (option) a page 14 – 3 or “Electrical ON”
(option) a page 14 – 3
(5) Circuit-breaker label a page2–1
(6) Stored-energy indicator a page 6 – 5
(7) “Mechanical ON” button
(8) Part no.
(9) Insertion pictograph
(10) Switching operations counter (option) a page 12 – 2
(11) Manual lever a page 6 – 4
(12) Crank handle a page 6 – 3
(13) Withdrawable unit transport shaft
(14) Options label a page 2 – 1
(15) Earthing terminal a page5–21
(16) Position indicator a page6–2
(17) Earth-fault tripping table (a page 9 – 17)
(18) Safety lock crank handle (option) a page 15 – 11
(19) Control rod (option) a page 15 – 3
(20) Overcurrent release a page9–1
(21) Rating plug a page 9 – 35
(22) Mechanical OFF button or Emergency-Stop pushbutton (option)
a page 14 – 3
(23) Ready-to-close indicator a page6–4
(24) Switch position indicator a page6–4
(25) Tripped indicator (Reset button) (a page6–6)
(26) Locking device, “Safe OFF” position (option) a page 15 – 15
(27) Front panel a page 24 – 6
(28) Plug connector for auxiliary contacts a page 5 – 16
08/07 AWB1230-1407GB 1 – 1
1.2 Withdrawable unit
(1)
(2)
(18)
(17)
(16)
(15)
(14)
(13)
(12)
(11)
(10)
(1) Arcing chamber cover (option) a page 21 – 1
(2) Outlets a page 5 – 19
(3) Hole for crane hook a page4–2
(4) Shutter (option) a page19–1
(5) Locking device shutter (a page 15 – 16)
(6) Withdrawable unit label a page2–3
(7) Laminated contacts (a page 5 – 11)
(8) Earthing terminal o 14 mm a page5–21
(9) Locking device guide rail a page 15 – 17
(10) Locking device to prevent racking with panel door open (option)
a page 17 – 2
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11) Door locking withdrawable unit (option) a page 17 – 2
(12) Guide rail a page6–1
(13) Factory setting rated current coding a page 19 – 5
(14) Switch ground sliding contact (on request)
(15) Equipment dependant coding (option) a page 19 – 6
(16) Shutter actuator a page 19 – 2
(17) Position signalling switch (option) a page 19 – 9
(18) Auxiliary sliding contacts module (quantity depends on
configuration) a page 5 – 17
1 – 2 08/07 AWB1230-1407GB
2 Labels
2.1 Circuit-breaker equipment label
(with terminal designations)
Tripped signalling switch
Signalling switch 1st
Remote reset
voltage release
Charge condition signalling
(on request)
auxiliary contact
2.2 Circuit-breaker label
Signalling switch 2nd
voltage release
1st shunt release
(Delayed) undervoltage
release or 2nd shunt
release
Additional auxiliary contacts
Standard auxiliary
contacts
BA_01092
Motor operatorClosing releaseReady-to-close
Standards
Max. rated current of the
Rated insulation voltage
Rated impulse withstand voltage
Rated operational voltage
Rated short-circuit breaking capacity
Rated short-time withstand current
Direction for use in IT systems
circuit-breaker
ID-Nr. 4912...
Disconnected function
Utilization category
Rated frequencies
Ident-No. circuit-breaker
08/07 AWB1230-1407GB 2 – 1
2.3 Identification of the control unit
IZM ...-A... Release for protection of systems
IZM ...-U... Release for universal protection
Options:
XT(A) Earth-fault
protection
N-conductor
protection
adjustable
XAM LCD-display
XCOM-DP Communication
interface
XMP(H) Measurement
module
IZM ...-V... Release for selectively-opening circuitbreakers
Options:
XT Earth-fault
protection
Neutral conductor
protection, can be
switched on/off
XZMA
XZMU
IZM...-D... Digital overcurrent release
Options:
XT(A) Earth-fault
protection
N-conductor
protection
adjustable
XCOM-DP Communication
interface
XMP(H) Measurement
module
XZMD+AMG
XZMV+T
2 – 2 08/07 AWB1230-1407GB
2.4 Rating plug label
Part no.
Rated current of the
circuit-breaker
2.5 Withdrawable unit label
Part no.
Withdrawable unit maximum
current rating
Rated insulation voltage
Internal handling numbers
Position signalling switch
0134
08/07 AWB1230-1407GB 2 – 3
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