||10-02-2012 01:17 PM
250V 30amp 3 post plug on a bandsaw, change the plug to a 4 post plug question
I am a woodworker, I have a small electrical dilemma to pose: I am working on a building project and I haven't hooked up the electrical service on site yet. I have a 17" Bridgewood bandsaw that runs on 220V power, it has a plug labeled 250V/30A. I would like to use this machine to cut some beams, but as I don't have service in the building yet I am hoping to use my Yamaha generator to power the bandsaw. the generator has a 220V circuit that has a four post outlet, but the bandsaw's plug is only a three post. I understand that when you have a balanced load, as in the motor of the bandsaw, there are only two hots and a ground used on the circuit. I took the saw's plug apart and found two hots labeled X and Y, and a green ground wire (3 wires). I have a new four post plug that fits the generator's outlet, but there are four connections in the plug, W, X and Y, and ground. Is it safe to hook up this plug up to the bandsaw motor with only the X and Y hots and a ground? I don't want to risk doing anything that wouldn't be safe and possibly damage the bandsaw... I'd appreciate any advice from someone who is more knowledgeable about these matters than I am. thanks.