I used it as a pilot ball with a 200v bulb attached to the factory forgetting to forget pump, forgetting to break, and preventing it. The pump motor is 200 V 0.75. For interlocking with the power breaker, I searched for something without a switch. I use it without any problem.
I ordered a socket similar to this to the usual wholesaler, so if I was told that there was not the same thing, I found this item on the net. Because the shape is the same, it was saved by being pleased with the client.