The test position is a position where a main circuit is in the "disconnected" state and only control circuit is in the "

This contact(SBC) is used to auxiliary switch(AXb) contact. When Drawout type ACB is moved from "test" position to "disc

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristi

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FAQ within [ Air Circuit Breakers ]

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ACB　test position

The test position is a position where a main circuit is in the "disconnected" state and only control circuit is in the "connected" state. Control circuit che... More Details >>
- No：22405
- Release Date：2018/08/31 14:33
ACB　Shorting B contact (SBC)

This contact(SBC) is used to auxiliary switch(AXb) contact. When Drawout type ACB is moved from "test" position to "disconnect" position, AXb contact will b... More Details >>
- No：22416
- Release Date：2018/08/31 14:33
Setting change operation while power is on

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristics should be changed by a person with... More Details >>
- No：37699
- Release Date：2020/01/18 09:58

21-23 of Total 23

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