GE THQB breaker

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Dho

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Well here’s a tough question for me to ask. I usually don’t run into stuff like this. I am having to make room in a GE THQB panel so I can put a 2 pole breaker in for a commercial steamer. I need to find a 20 amp tandem breaker that will work in the THQB panel. I have read that Siemens breakers will work . Any ideas? Any help is greatly appreciated. Thanks.
 
hmm, well there's actually a cross ref of resi breakers that fit each other's panels i've read here, but i'm told their warranties do not compliment each other's

~RJ~
 
Minis are not tandem unfortunately. I need to put two breakers in one spot so I need a tandem.
 
Dho said:
Minis are not tandem unfortunately. I need to put two breakers in one spot so I need a tandem.
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Not going to find a twin bolt-on breaker besides ITE Pushmatic & they are not suitable for the application. Is moving some lightly loaded circuits into a subpanel adjacent to the full panel a option? One of the reasons I like bolt-on panels is the lack of twin breakers.
 
A THQB is a bolt-in. I don't recall ever seeing a tandem bolt-in breaker.

Can yo combine the two smallest loads onto a single breaker?
 
The "B" at the end of the part number means it is bolt-on. You cannot get tandem breakers in bolt-on format from GE, I don't thing you can get that from anyone else either.

While Siemens and Eaton BR series breakers may physically plug into GE THQL (plug-in) type panels , they are NOT UL listed or Classified to do so.
 
Thanks for all the help guys. I am just going to put in a sub panel. Was trying to save the people some money but it wouldn’t work like that.
 
I’ve seen Siemens BL breakers in an A-series panelboard, and they did not fit properly. I mean they bolted down on the bus, but they didn’t lock in the rail properly nor did they sit in the dead front like a THQB


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Jraef said:
The "B" at the end of the part number means it is bolt-on. You cannot get tandem breakers in bolt-on format from GE, I don't thing you can get that from anyone else either.

While Siemens and Eaton BR series breakers may physically plug into GE THQL (plug-in) type panels , they are NOT UL listed or Classified to do so.
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My understanding is breakers of the same make as the panel are listed for use in the panel, and some competitive breakers are classified to be used some panels.
 
norcal said:
My understanding is breakers of the same make as the panel are listed for use in the panel, and some competitive breakers are classified to be used some panels.
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And there is a perpetual argument whether the UL Classification for substitution should override the panel manufacturer's exclusive list of compatible breakers.
 
You find the Eaton BR or as I call them, "Zinsco II" everywhere, but have never laid eyes on the Eaton CL, I realize that paying UL, or another NRTL, is costly but why couldn't Eaton have made the BR a classified breaker?
 
norcal said:
You find the Eaton BR or as I call them, "Zinsco II" everywhere, but have never laid eyes on the Eaton CL, I realize that paying UL, or another NRTL, is costly but why couldn't Eaton have made the BR a classified breaker?
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I worked on a homeline loadcenter once at least 10 years ago that had the Eaton CL AFCI’s. First and only time I’ve seen them.


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