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MCB Type Automatic Transfer Switch

Kilowatt Power

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Has anyone put into service a motorised MCB type Automatic Transfer Switch as found here on eBay? Do they work as required?

I'm thinking of employing one to automatically switch from 3-phase mains supply to single phase inverter output (looped on all 3 phases) during grid loss events. 

These are open transition (break before make) and don't see the possibility of shorting the phases on the load side.


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