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I just need to know what my sp250 idlearc lincoln mig welder is single phase or three phase, my gurage has three phase running in how do i wire in ,if single phase

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Hi:

Your Machine is single phase, and it could be a 208/230V or a 230/460/575V depending on the model. Check what kind of voltage do you have at your garage first, before attempting to do the following:

On a three phase wiring you will have 4 wires with the following colors; green, red, white and black. If you have 208/220/230 volts available at your garage you can connect the green, white and black wires, always green being the ground cable in the middle, black and white don't matter which side you screw them in.

Before attempting to connect a 480V to the machine check machine's plaque information in the front (or back) for real voltage, because this voltage can burn the PC board of you machine. The same color sequence applies to the 480V.

Good luck.

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Posted on Mar 21, 2011

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