Unusual Circuit Breaker
- Thread starter pj424
- Start date
winnie
Senior Member
- Location
- Springfield, MA, USA
- Occupation
- Electric motor research
I'd like to see if the terminals were different for the two poles. If the '60A' leg has a terminal that can take larger wire than the '30A' leg, then what we see might be intentional. But I'm leaning toward 'oopsie' on the unmatched pole rating numbers.
Thank you for the reply. It is for a Cutler Hammer panel. I ordered a 2-pole 60 amp breaker and this is what they sent. It is a 2-pole breaker, but it has 30 amps on one pole and 60 on the other. The only use I can think of would be for something that needs 2 different 120 volt loads that would share a neutral. Something like a machine with two different size motors.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
I agree.
There may be an OEM that buys this breaker, but it should never have made it out to the general public.
winnie
Senior Member
- Location
- Springfield, MA, USA
- Occupation
- Electric motor research
Yes, ooopsie. Send it back. Or keep it for the WTF value 
- Location
- Illinois
- Occupation
- retired electrician
Those both have the same size lugs, so my guess is that the breakers are of the same rating, but one just has the wrong handle.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Could be counterfeit.
Electromatic
Senior Member
- Location
- Virginia
- Occupation
- Master Electrician
MCA 30
MOCPD 60
MOCPD 60
Unless it’s supplying two 120V loads, one on a 30A circuit and the other on a 60A. But I don’t think I’ve ever seen a 120V, 60A load.Well if one side is actually 30A and given the fact it's common trip it would never carry a 60 amp load period.
In that case there's no reason for a two pole breaker.
- Location
- San Francisco Bay Area, CA, USA
- Occupation
- Electrical Engineer
I've seen these things posted several times over the years, most seem to be Eatons. It's a mistake.