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ITC-1000 compressor inrush?

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Joined
Feb 1, 2025
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Hi guys

A bit off topic, but I want to control a 5000 BTU window AC using a 120v thermostat controller. The compressor draws around 3.2-3.5 A running. I haven't been able to measure the inrush current when stating, but I bet it is more than the 10A the ITC-1000 is stated to handle. I haven't been able to find the inrush rating of the 1000, since they all seem to have different relay ratings and brands in them.

Has anyone been running their ITC-1000 with a compressor type load attached to it for long periods of time? Has it held up? It's too bad they don't make a version with higher current rating. The only other temperature controllers on Amazon are 15A, but they don't have the compressor delay protection the 1000 does. Seems strange they would add compressor protection, but then have such low relay ratings. Maybe good for mini fridges and that's about it?

I thought about using the ITC-1000 to control a 30A automotive relay or something to be sure there is enough load carrying capacity, but this is in a living space, and I'd rather not have to listen to both relays clicking all the time if I don't have to.
 
Some things I'm reading put it at about 7A for inrush. However if you are not comfortable with that you can use the STC-1000 to turn on a contactor which handles the large load for the AC.

20A Contactor
 
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