Quote Originally Posted by HEMI View Post
By the way, 2 breakers tied together with a tie bar you put on. Is not the same as a 2-pole breaker you purchase with or without the tie bar.

Putting a tie bar on 2 single breakers are fine for split plugs or 2 circuits going to say the 2nd floor of a house, sharing the same neutral.

But when feeding a 220/240 volt device, the breaker should not only be mechanically tied together but also be thermal magnetic (Internally) connected to each breaker.


Now lets get back to some welding
Hemi:
I have never heard of a ganged 240 (240v) breaker having an internal electrical connection between the two halves. I think that would defeat the purpose of having independent internals. Can you refer me to anything that says a 240 breaker is anything other than two breakers tied together on the trip levers?