Re: Need help wiring a 220v plug on spot welder


[Follow Ups] [Post Followup] [Dodge Power Wagon Forum]


Posted by David Sherman on Wednesday, June 20, 2007 at 21:01:38 :

In Reply to: Need help wiring a 220v plug on spot welder posted by DG on Wednesday, June 20, 2007 at 20:24:23 :

For 240V, white and black are meaningless. Both are hot. You can hook either one up to either flat blade. I agree you should make sure the green really goes to ground on the welder. Whenever I wire 240, I wrap black tape around the white wire just to make it clear to anybody looking at it in the future that it's hot. Ideally, they'd use a cord with green, red, and black for 240, and those are the colors you get if you have a 4-wire cord (with white for neutral) but it's a lot more common to use standard black/white/green cord for 240 with the understanding that the white in that case is the other hot phase.

It sounds like you definitely do have a 20 amp 240V plug, but the 20 amp 120V plug is very similar looking, it's just that the vertical and horizontal blades are swapped. I've been fooled by them a time or two.



Follow Ups:



Post a Followup

Name:
E-Mail:
Subject:
Message:
Optional Link
URL:
Title:
Optional Image Link
URL:


This board is powered by the Mr. Fong Device from Cyberarmy.com