30A 120V circuit

[SNations]

Is there ever a legitimate reason to have a 30A 120V circuit? It's my understanding that 30A is allowed for "fixed utilization equipment" (and obviously I see 30A 240V all the time) but I can't think of any equipment that uses 30A on 120V. Is there anything like that?

In the case I saw yesterday it was clearly an attempt to get more juice out of the six circuits supplying a 1400 square foot 3 bedroom duplex.

[Phillip]

First thing is WATS size wire was on the breaker? It needs to be at lest a number 10 copper.

I use a 30 amp breaker for my wire welder that 110 volt. Might be for a window unit.

I don't know why it would be on 6 circuits in a house or duplex.

[Douglas Hansen]

Is there ever a legitimate reason to have a 30A 120V circuit? It's my understanding that 30A is allowed for "fixed utilization equipment" (and obviously I see 30A 240V all the time) but I can't think of any equipment that uses 30A on 120V. Is there anything like that?

In the case I saw yesterday it was clearly an attempt to get more juice out of the six circuits supplying a 1400 square foot 3 bedroom duplex.

I've seen a few built-in vacuums that required a 30-amp / 120-volt circuit. Obviously a different situation than your 3-bedroom duplex.

[Jim Port]

RV outlets are typically 30A/120V.

[plummen]

Id say its very uncommon to see a 30a 120v circuit these days,unless its from an old window ac as stated previously