GE THQB breaker

[Dho]

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.

 

[romex jockey]

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~

 

[Dho]

You are referring to resedential breakers?

 

[Dho]

Can you repost that ?

 

[romex jockey]

You are referring to resedential breakers?

iirc, it's a bolt in mini.....~RJ~

 

[Dho]

Minis are not tandem unfortunately. I need to put two breakers in one spot so I need a tandem.

 

[norcal]

Minis are not tandem unfortunately. I need to put two breakers in one spot so I need a tandem.

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.

 

[LarryFine]

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?

 

[Jraef]

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.

 

[Dho]

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.

 

[Jraef]

So it’s a residential user with bolt on breakers? That’s unusual.

 

[brantmacga]

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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[Dho]

So it’s a residential user with bolt on breakers? That’s unusual.

No it’s a school.

 

[norcal]

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.

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.

 

[GoldDigger]

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.

And there is a perpetual argument whether the UL Classification for substitution should override the panel manufacturer's exclusive list of compatible breakers.

 

[Chamuit]

Can you repost that ?

https://www.eaton.com/content/dam/eaton/products/low-voltage-power-distribution-controls-systems/circuit-breakers/classified-circuit-breakers/ul-classified-replacement-circuit-breakers-sa00304001e.pdf

 

[norcal]

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?

 

[brantmacga]

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?

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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