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Insight - How MCB works

Written By: 

Arpit Jain
On further disassembling, different parts of this mechanical system can be seen. The images below shows all the parts of the switching mechanism which are further detailed in the subsequent images.
Different parts of MCB
The following image shows the connection of the moveable contact with the coil. A thick wire carries the current from the movable contact to the coil.

Coil and Movable contact connection



So Simply explained..was feeling the urge to know about the MCB mechanism .

does the frequency matters for a MCB? 



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i have MCB switch but i doesn't work

please tell that is it manadatory to connect Input supply to input terminal or we can connect it to output terminal also.