Answer / sheikh

This is not possible that vcb power contacts make and supply would not reach on out put. although vcb can make the contact without supply either input or out put.
vcb is a mechanically operated switch.

Answer / sheikh

VCB is a mechanically operated switch hence it may be operated without any supply either input or output.

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

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