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Jun 7 at 20:53 comment added Greg Hill There's a wiring diagram on the side of the contactor case. It illustrates that this contactor has a switch on one side and is wired straight through on the other side. My mistake: I think of these as 2-pole, and some actually are, but this is a good reminder that others are technically 1 pole because they switch only one side.
Jun 7 at 4:25 comment added ThreePhaseEel Probably just depends on what you can get in your case
Jun 7 at 4:20 comment added theforestecologist @ThreePhaseEel Ah, got it. any benefit or risk associated with using 2 vs 1?
Jun 7 at 4:18 comment added ThreePhaseEel I'm saying that the manufacturer only needs it to be a one-pole contactor, at least in your unit. That doesn't mean that a two-pole unit won't work though.
Jun 7 at 4:17 comment added theforestecologist @ThreePhaseEel thanks for the comment -- could you explain how it relates to my post? Are you suggesting the 1-pole or 2-pole is more likely?
Jun 7 at 4:15 comment added ThreePhaseEel The contactor in an AC is not serving as a disconnecting means, only a control means, so it just needs to break the circuit somewhere, not isolate the compressor well enough so that you can poke it without getting zapped
Jun 6 at 22:17 history answered theforestecologist CC BY-SA 4.0