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  1. Why does this presumably 15A GFCI say its a 20A receptacle?

    Aug 14, 2024 · A UL requirement is that all 15A faced receptacles (i.e. NEMA 5-15 sockets) must have 20A passthru. The companion rule to this is NEC 210.21 (B) (3) which allows 15A receptacles on …

  2. Would there be a problem installing 20A switches on a 15A circuit?

    There is no problem with using a 20A switch on a 15A circuit, as the breaker will trip and protect the switch from over-current. Using a 15A switch on a 20A circuit is potentially dangerous though: the …

  3. electrical - Why does US Code not allow a 15A single receptacle on a ...

    Dec 6, 2020 · What am I missing about why a 15A single receptacle cannot be the only connection to a 20A circuit? (This answer quotes more of Code 210.21, and goes into more details about why …

  4. appliances - Home Improvement Stack Exchange

    A 15A circuit is limited to 15A from all sockets and hardwired loads on the circuit. A 20A circuit is limited to 20 amps, ditto ditto. Appliances which are continuous loads must be treated as 125% of their …

  5. Replacing old Nutone Despard/triple Switch with Triple Rocker

    Feb 17, 2023 · I'm looking to replace an old Nutone Despard/triple switch, which has individual controls for the light, vent & heat aspects of the overhead unit. Through a series of push-in and jumper …

  6. Why is it safe to use 15 A receptacles on a 20 A circuit?

    A 15A outlet is rated for 15A, with a 20A pass through. That is to say that the 20A circuit is in continuance throughout the circuit, however the receptacle itself (the contacts) are rated for 15A …

  7. wiring - Can I use a 240 15A dedicated breaker for a 1500 watt ...

    Dec 7, 2021 · My electrician is putting in a bigger electrical panel, and he asked what amp i need 20 or 30 for this 240 dedicated line to a 1500 w baseboard heater that will be installed later. Can’t i just use...

  8. breaker size, wire gauge, and minimum circuit ampacity (MCA)

    Jun 6, 2024 · Which actually makes sense. For a pure resistive load, MCA == wattage/voltage. And while typically each water heater will be on its own circuit and therefore breaker size = first typical …

  9. Can I use a commercial appliance in my home?

    Feb 27, 2025 · The described would be just a regular outlet and 15A is the lowest amp circuit typically found in US homes. However, the "dedicated" part is not very common for fridges. You would need …

  10. Is there a 30A receptacle which will accept "regular" 5-15 and 5-20 plugs?

    Jul 14, 2021 · Nope, that was a "one-off" specifically for 15A receptacles. That is because UL requires 15A receptacles to be rated for 20A internally. They make no such requirements of any other size. A …