开云体育

The box would be steel, and just enough foam to reduce the noise. When I'm not using the bench, the power is shut off with the lights. Even the wall warts for chargers are powered down when I turn out the lights and lock the door. A power failure will cause a contactor to drop out, as well.

I'm from the old school where every workbench had a disconnect switch at the end, where all power could be shut down in an emergency.

I had a breaker box catch fire in my home. I had to beat the flames out with my bare hands before I could flip the main breaker. Its contacts to the bussbar had failed, and the heat had set that breaker on fire. It burnt the end off the bussbars. A thermal switch is simple to put into an enclosed box, and you need an opening to get rid of the air it collects so it won't be 100% silent.


Michael A. Terrell