Even if the breaker fits in the panel, the resulting combo is not
'UL listed' since Murray is certainly not going to apply for a
combo using their copetitor's products. Many times there is not a
problem but the manufacturer has not verified that. Then the
inspector rejects it. Seems kind of anal but thats the way the
system works.



Dan Caster wrote:

I got a call from a friend asking where he could get a genuine Murray
hacr breaker. He had another friend help him with wiring for a heat
pump and the friend had put a GE hacr breaker in his Murray panel.
The electrical inspector insisted he change out the GE breaker for one
made by Murray.

I have not seen the panel, so there could be a good reason. But is
there anything in the NEC that requires breakers in a panel to be made
by the same manufacturer of the panel?

Dan