Quote:
Originally Posted by 16ACE27
That's actually the opposite of what you should be doing. Turn off all loads before having the ATS switch sources to prevent excessive arcing on the contacts. When the ATS switches everything running will be unpowered for a split second anyway as the switch is break-before-make so any loads already running will all try to start again at the same time anyway (except for the Air Conditioner compressor, which has to time out before it restarts).
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The ATS is designed to work under load. There is a time delay built in to be sure one contact opens before the other closes. Generator will be up to speed before it comes on line. If power goes off in the middle of the night or when you are not there, The transfer happens all by it's self.