Panel Assembly

Did you mean "which will consist of a 200A MCB" instead of a "20A MCB"?

Assuming that you meant "200A MCB", then yes, using a larger tub, you can install a 200A, 3 pole contactor after the over current protection device ( the 200A MCB) which will serve the same purpose controlling the MCB.

If you did in fact mean a "20A MCB" you will have to provide more detail. I am not aware of a 20A MCB being installed in a 200A panel?????????

Depending on exactly what needs to be done, a shunt-trip circuit breaker or motorized-operator circuit breaker could be what you asre looking for.

Typos and acronyms, never a good mixture...

If you are truly referring to a 20A MCB (Mini Circuit Breaker), then yes, the Merlin Gerin line of MCBs has a through-door lockable operator handle accessory.

If you were referring to 200A MCB (as in Main Circuit Breaker) then every brand I am aware of has external operating mechanisms available as options.

If it is MCB, then Switching OFF without opening the door is very much possible with a shunt release fitted on to the MCB and controlling the supply to the shunt release with any external switching device. But, I very much doubt if remote ON facility is commercially available for MCBs.

In case of MCCBs, yes! both Remote ON & Remote OFF are possible with Motorised Operators & Shunt Releases.

jus use a rotary handle for mcb or mccb.......u can easily turn on/off.....it s the simple n cheap way......