I just purchased a Powermax 1000 to use with my Torchmate table. It did not come with a plug on the power cord, I need to purchase one to match my receptacle. (I will be using 230v, single phase.) The owner's manual says that it comes with an 8 AWG, 4 wire power cord for 3 phase operation, and it says that if it is to be used with single phase, I am to replace the power cord with an 8 AWG, 3 wire. This unit does indeed have a 4 wire power cord (black, white, red, green).
According to the diagrams in the manual, for both 1 and 3 phase, the green is grounded to the chassis, the black and white go to L1 and L2 on the power switch. The only difference for 3 phase is that there is an extra red wire, which goes to L3 on the power switch.
Instead of purchasing a new power cord, since I need to install the plug anyway, can't I just wire up the black, white and green as usual and simply ignore the red wire? The wire gauge is the same, its wired up the same, there would just be an extra wire in the bundle which isn't connected to anything on either end. (I would probably disconnect the red wire at the power switch and cap it off inside the unit.)
I can't think of any reason why I shouldn't do it that way, but figured I would check here first just in case there is something I am overlooking.
Thanks!