Table of contents
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
9
4.8.13.2 Installation....................................................................................................................... 276
4.8.13.3 Activation / override ......................................................................................................... 279
4.8.13.4 Article number ................................................................................................................. 279
4.9 Interlocking ..................................................................................................................... 280
4.9.1 Mechanical interlocking (Bowden cable interlocking)........................................................ 280
4.9.1.1 Description ...................................................................................................................... 280
4.9.1.2 Installation....................................................................................................................... 284
4.9.1.3 Article number ................................................................................................................. 288
4.9.2 Interlocking of two circuit breakers using a Bowden cable................................................. 289
4.9.3 Interlocking of three circuit breakers (one of three) using a Bowden cable ........................ 290
4.9.4 Interlocking of three circuit breakers using a Bowden cable .............................................. 291
4.9.5 Interlocking of three circuit breakers, two of which are interlocked, using a Bowden
cable ............................................................................................................................... 292
4.9.6 Interlocking of three circuit breakers using a Bowden cable .............................................. 293
4.9.7 Interlock for mechanical close/open ................................................................................. 294
4.9.7.1 Description ...................................................................................................................... 294
4.9.7.2 Installation....................................................................................................................... 295
4.9.7.3 Activation ........................................................................................................................ 295
4.9.7.4 Article number ................................................................................................................. 296
4.9.8 Interlock system to prevent unauthorized closing ............................................................. 297
4.9.8.1 Description ...................................................................................................................... 297
4.9.8.2 Installation....................................................................................................................... 297
4.9.8.3 Activation ........................................................................................................................ 297
4.9.8.4 Article number ................................................................................................................. 297
4.10 Accessories for integration in the power distribution equipment ....................................... 298
4.10.1 Door sealing frame .......................................................................................................... 298
4.10.1.1 Description ...................................................................................................................... 298
4.10.1.2 Installation....................................................................................................................... 299
4.10.1.3 Article number ................................................................................................................. 299
4.10.2 IP55 protective cover ....................................................................................................... 300
4.10.2.1 Description ...................................................................................................................... 300
4.10.2.2 Installation....................................................................................................................... 301
4.10.2.3 Article number ................................................................................................................. 301
4.10.3 Arc chute cover ................................................................................................................ 302
4.10.3.1 Description ...................................................................................................................... 302
4.10.3.2 Installation....................................................................................................................... 303
4.10.3.3 Article number ................................................................................................................. 305
4.10.4 Grounding connection between the guide frame and the circuit breaker........................... 306
4.10.4.1 Description ...................................................................................................................... 306
4.10.4.2 Installation....................................................................................................................... 307
4.10.4.3 Article number ................................................................................................................. 309
4.10.5 Support brackets .............................................................................................................. 310
4.10.5.1 Description ...................................................................................................................... 310
4.10.5.2 Installation....................................................................................................................... 311
4.10.5.3 Article number ................................................................................................................. 312
4.11 Accessories for the ETU600 electronic trip unit ................................................................. 313
4.11.1 External current sensor for neutral pole ............................................................................ 313
4.11.1.1 Description ...................................................................................................................... 313
4.11.1.2 Technical specifications.................................................................................................... 314
4.11.1.3 I
nstallation....................................................................................................................... 314
4.11.1.4 Article number ................................................................................................................. 315
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