You're making it even more obvious what you don't know. Because you
don't know how to do something is no reason for you to attack others who
might be on the right track. Your concepts of how relays can work is in
bad need of help also. When you have nothing worthwhile to say, that's
what you should say: Nothing.
If you had a transfer switch it would be alot safer on the equipment,
a cheap one wont do what you want but will have 2 watt meters so you
know the load and can balance it. They are cheap and easy to install
many are prewired. Generac has one prewired with exterior baox cables
plugs tec for about 300, I got mine free at Lowes with a cheap gen.
Simplest would be to attach a 120 Volt NC (Normally Closed = ON) relay
to the compressor's two electrical feed wires. When the compressor is
running, the relay is activated and its contacts are open (=Off).
When the compressor has stopped, the relay closes and lets the sump
pump, e.g., run.
What you are seeking is akin to this
but with a reverse action. You could purchase a strip like this and
plug the frig into its power sensing socket. A NC relay could then be
plugged into the controlled sockets. Would do the same as above but
save you the trouble of messing with the refrigerator wiring.
Ron Hardin wrote:
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