I moved into a house built in the 1950s in the north eastern US and this outlet is on the back of the house but I can’t find anything like it searching online. If anyone knows what it is I’d greatly appreciate the enlightenment!

  • bitteroldcoot@piefed.social
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    1 day ago

    What you’re likely seeing as “4-pin” wiring is a 4-conductor cable (two hots + neutral + ground), used for 240V circuits like electric dryers, ranges, or central air conditioners.