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5
Application planning .............................................................................................................................. 57
5.1
Use with frequency converters .................................................................................................... 57
5.2
Use of capacitor banks ................................................................................................................ 58
5.3
Transformer protection on the primary side ................................................................................ 59
5.4
Use in DC systems ...................................................................................................................... 60
5.5
Use in IT systems ........................................................................................................................ 62
5.6
Use in motor protection ............................................................................................................... 64
5.7
Use in unusual environments: ..................................................................................................... 67
5.8
Use in series connection ............................................................................................................. 69
5.9
Use in transfer control system .................................................................................................... 71
5.10
Use in communication environment ............................................................................................ 74
6
Installing/mounting ................................................................................................................................ 77
6.1
Installation methods .................................................................................................................... 77
6.2
Mounting and safety clearances ................................................................................................. 80
6.3
Locking devices ........................................................................................................................... 84
6.3.1
Locking devices for a padlock ..................................................................................................... 84
6.3.2
Locking device with a safety lock ................................................................................................ 86
6.3.3
Mutual interlocking of two molded case circuit breakers ............................................................ 86
7
Connecting ........................................................................................................................................... 89
7.1
Cables and busbars .................................................................................................................... 89
7.2
Main connection types for fixed mounting ................................................................................... 99
7.3
Main connection methods for plug-in and withdrawable version .............................................. 106
8
Displays and operator controls ............................................................................................................. 109
8.1
Overcurrent trip unit without LCD display ................................................................................. 109
8.2
Overcurrent trip unit with LCD display ...................................................................................... 114
9
Parameter assignment / addressing ..................................................................................................... 119
9.1
Setting the parameters .............................................................................................................. 119
9.2
40M) .......................................................................................................................................... 123
10
Service and maintenance ..................................................................................................................... 125
10.1
Preventive measures ................................................................................................................ 125
10.2
Troubleshooting ........................................................................................................................ 127
11
Technical data ..................................................................................................................................... 129
11.1
General data - 3VL molded case circuit breakers ..................................................................... 129
11.2
Technical overview .................................................................................................................... 132
11.3
Configuration of main connections ............................................................................................ 136
6
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03
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