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Originally Posted by Yaktop

Thanks for the great explanation. Someone had told me I shouldn’t run the heat pump unless I had the full 30 amp in use. Wasn’t sure if running it with just 110 was wearing it or shortening its life.

Ed

As explained in great detail 110 (or 120) applies to the voltage. 30 (or 50) applies to the current.

You have multiple 120 Volt AC service plugs:

15 Amp


20 Amp


30 AMP RV


But the "50 Amp RV" outlet is really a standard 240 VAC outlet. It's rated at 50 Amps at 240 VAC but most RVs just use the 2 hot legs independently so each leg uses up to 50 Amps at 120 VAC for a "total" of 100 Amps at 120 VAC.