Experts recommend a circuit breaker with a locking device
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This post was last edited by liuperfe on 2009-8-27 21:38 Has anyone ever used or seen a similar circuit breaker or locking device? That is to say, there is something like a clip on the circuit breaker. Once it is clipped, the handle of the circuit breaker cannot move. You can only use the key to open and remove the clip before you can operate the handle again. It seems that there is also an integrated one with a key on the circuit breaker. Once it is locked, it cannot be operated, and it cannot be operated until it is unlocked. Is there such a thing? If you know it, please provide the model and manufacturer. Thank you very much! ! After some searching, I found what I was looking for. ABB's isolation switch can be equipped with ABB's locking device-SA3.
You can ask Schneider (400-410-1315) or domestic CHINT about this specific circuit breaker. There should be.
I asked Schneider, they only have the kind used on the air conditioner, not the isolating switch. The sizes don't match, so they can't be used.