Originally Posted by steamnut2010
With all due respect, I would definitely not recommend your wiring diagram for the 3-phase situation described.
Pardon my criticism of you feedback, but I think it should be different.
I NEVER said to hook it up that way, I NEVER said it was a diagram of HIS situation. It was a diagram I found that illustrated the 'basic concept' of using two legs of a three phase circuit to stop or start a motor.
Forgive me of my criticism of YOUR feedback, but try a little harder to read what was written and keep in mind that I offered the diagram as an illustration of a relay that breaks two of the three phases for a three phase motor. Nothing more, nothing less.
Getting tired of the jump to a conclusion, hammer you over the head attitude of certain members here. READ what was written is all I ask. It's a written word forum for god's sake. Written words are all anyone here have to go by.
If I was going to make a diagram of his situation, I would have started by asking for a whole hell of alot more information than what he gave. Even then I doubt I would try to make any suggestions other than the very reasonable one given by yourself. "Get an electrician to do it".
The original poster described his contactor and that it was only labeled for two wires L1 and L2, then described his motor as a three phase motor labeled with 220-500 V three phase. I offered some insight into how that might be 'correct' for the equipment he had. Then I found a diagram that showed such a setup as drawn for a different purpose, not stated or written on the diagram.
The desire to see some other nefarious purpose behind it simply is not needed or called for. If you ask for help, I offer up what I know. If you want to know how to do a SPECIFIC task and I don't know how to that SPECIFIC task then I stay silent.
He didn't ask for specifics and I didn't give any.