What is the right AC contactor part that I need?

ubuntu_ulysses

I need to replace my AC contactor, but I'm not sure what exact model I need for the new part. I took two photos showing the brand and model number of it but I can't seem to find the exact one. I was wondering if I can use different brands instead of the one I have put in right now. Can someone maybe give me a link to a one which is compatible with this model or explain what other ones I can use? Brand: Honeywell Model: R8243A 1031 24V 50/60HZ

Originally asked by David on Stack Exchange (diy) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

I searched R8243 and came up with a Honeywell cross R4243b1012. Part numbers change all the time but this should be a compatible part 24v coil and a double pole contact set without knowing your compressor size it would be hard to guess at the right size because Honeywell did not provide the specs for the original. It’s not a big deal as long as the control voltage 24v is the same It’s a double pole motor contactor the last part would be the HP rating. Well and it fits. It won’t hurt to get a larger one as long as it fits. I put larger ones in all the time the contacts actually last longer.

Full answer by Ed Beal: https://diy.stackexchange.com/a/208935 (CC BY-SA 4.0).

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