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The hardest part of that is regulatory compliance on whatever interlock you have installed that prevents you from connecting mains to your backup. The most com
by extraduder_ire 1y ago
The hardest part of that is regulatory compliance on whatever interlock you have installed that prevents you from connecting mains to your backup.
The most common solution to that is a switch that goes through fully disconnected in the middle, and I've even seen a sliding metal plate used that interferes with at least one or both circuit breakers.