[Top] [All Lists]

Re: [Shop-talk] 220 outlets

To:, Jimmie Mayfield <>
Subject: Re: [Shop-talk] 220 outlets
From: Doug Braun <>
Date: Wed, 29 Jul 2009 11:45:02 -0700 (PDT)
While we're on the subject:

The manual to my 120 volt Lincoln welder says
that for maximum output, it should be plugged into a 25 amp outlet.  But does
such a thing even exist?
Is there in theory a type of 120V outlet meant for
more than 20 amps?

I've never even seen a single-pole circuit breaker higher
than 20 amps.


--- On Wed, 7/29/09, Jimmie Mayfield
<> wrote:

> From: Jimmie Mayfield
> Subject: Re: [Shop-talk] 220 outlets
> To:
> Date: Wednesday, July 29, 2009, 8:41 AM
> My
understanding was that NEC
> requires outlet ratings to match the breaker
and that an explicit exception was included to allow for
> 15A outlets on a 
20A circuit.  So while there's nothing preventing you
> from installing, say,
> a bunch of 20A outlets on a 50A circuit, such a setup would
> fail an
> Imagine the fire that could result should an appliance
> plugged
into the circuit
> develop a short that tops-out at 45A (meaning that the
breaker would never 
> trip)....
Support Team.Net

Shop-talk mailing list

<Prev in Thread] Current Thread [Next in Thread>