I am trying to add a 220v 20a circuit to my 1981 Crouse-Hinds CTL load
center. It has (20) 1-inch slots, but has 40 poles and is rated for 40
circuits, using 1/2-inch (tandem) breakers. However, Crouse-Hinds was
bought out more than once, and I am having the devil of a time finding
possible replacement breakers. I don't really want to replace my panel,
so is there a good resource for modern replacement breakers? I can find
1-inch breakers all day, but I need 1/2-inch, as my panel is full of
The sooner I get a new circuit, the sooner I can get my new SawStop 3hp saw!
THQP120 = 1P-20A.
THQP230 = 2P-30A
As mentioned by others, location of the THQP230 is limited in panel
to pick up 240V, so you will have to juggle some c'bkr locations to
get a full panel.
The THQP230 has a mechanical interlock to prevent incorrect
in GE panels, not sure about C-H panels.
After installation, check voltage at output of c'bkr.
LOL I remember the raging argument that incorrect installation was even
a possibility when I said that very same thing a few years back.
When we first started installing half height c'brkrs years back
placement/voltage was important to check, as it was possible to have a
240 2P pulling off the same leg, to the point that it is something I
still check when doing my trim out walk through, impossible or not ...
having fielded a call or two from new home owners the first time they
went to cook a turkey in that new oven. :)
A Crouse-Hinds load center is probably compatible with breakers made by:
You can find Siemens at Lowe's, and Cutler-Hammer at ACE Hardware IIRC.
Did a quick qoogle search and some of the CH breakers are obsolete.
Doesn't mean they aren't available, they just may be used. Not having
the actual breaker designation can't tell you for sure. There are
reputable specialty breaker dealers that test before they sell. There
are a lot that will fit possibley but listed 1/2 size breaker went
thru some listing changes so technically may not be in compliance you
have to be sure they are listed for your panel. If the substute is
one that's still readily available I woudn't worry to much. I
wouldn't use any untested used breaker myself.
There is that possibility, but I'd say your odds are better that it
will work as designed. There was actually a case here in the NW of
counterfeit circuit breakers being manufactured in China and sold as
new factory breakers.
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