Table of contents
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
11
4.16.1.1 Description ...................................................................................................................... 344
4.16.1.2 Technical specifications.................................................................................................... 345
4.16.1.3 Installation....................................................................................................................... 346
4.16.1.4 Article number ................................................................................................................. 346
4.16.2 Position signaling switch module for connection to the communication module ............... 347
4.16.2.1 Description ...................................................................................................................... 347
4.16.2.2 Installation....................................................................................................................... 347
4.16.2.3 Article number ................................................................................................................. 347
4.17 Special packaging ............................................................................................................ 348
4.17.1 Description ...................................................................................................................... 348
4.17.2 Article number ................................................................................................................. 348
5 Inspection and maintenance ............................................................................................................. 349
5.1 General............................................................................................................................ 349
5.2 Safety regulations ............................................................................................................ 351
5.3 Planning of inspection and maintenance .......................................................................... 352
5.3.1 Inspection interval ........................................................................................................... 352
5.3.2 Scope .............................................................................................................................. 353
5.3.3 Logging ........................................................................................................................... 355
5.4 Performing inspection ...................................................................................................... 356
5.4.1 General............................................................................................................................ 356
5.4.2 Visual inspection .............................................................................................................. 356
5.4.3 Check of the available documentation and of the rating/accessory label ............................ 357
5.4.4 Testing of mechanical function of the circuit breaker ........................................................ 357
5.4.5 Testing of mechanical function of the withdrawable circuit breaker and the guide
frame ..............................................................................................................................
358
5.
4.6 Testing of auxiliary circuits ............................................................................................... 358
5.4.7 Testing of mechanical and electrical function of internal accessories ................................. 359
5.4.8 Testing of settings and inspection of electronic trip unit ................................................... 360
5.4.9 Inspection of the arc chutes, arc chute cover and the contact system ................................ 360
5.4.10 Testing of the function of the CubicleBUS² modules.......................................................... 361
5.5 Preparing for maintenance work ...................................................................................... 362
5.6 Maintaining the arc chutes ............................................................................................... 365
5.7 Maintaining the main contacts ......................................................................................... 368
5.7.1 Maintaining the main contacts and replacing the contact system ...................................... 368
5.7.2 Article number ................................................................................................................. 376
5.8 Decommissioning ............................................................................................................ 378
6 Technical specifications ..................................................................................................................... 379
6.1 Circuit diagrams ............................................................................................................... 379
6.1.1 Terminal connection diagram of secondary disconnect terminal ....................................... 380
6.1.2 Closing coil ...................................................................................................................... 381
6.1.3 Remote trip alarm reset coil.............................................................................................. 381
6.1.4 Shunt trip ST / ST2............................................................................................................ 381
6.1.5 Capacitor trip device for shunt trips .................................................................................. 382
6.1.6 Undervoltage release UVR / UVR-t ..................................................................................... 382
6.1.7 Second tripping solenoid F6 with reclosing lockout........................................................... 383
6.1.8 External Trip Controller ETC600 ........................................................................................ 383
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