ABB / General ElectricTHQB1125ST1
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Free Shipping Over $99
Free Shipping Over $99
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ABB / General Electric THQB1125 Miniature Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
ABB / General Electric
THQB1125
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB1125
Quantity
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ABB / General Electric THQB1125 - 25A 1 Pole Miniature Circuit Breaker
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Description
Providing reliable overcurrent protection for commercial facilities, this 25A single-pole component utilizes proven thermal-magnetic trip technology. It bolts firmly into GE A-Series panelboards and AQ lighting panels to ensure a stable electrical connection. The unit carries a standard 10kAIC rating at 120/240V and includes an HACR certification, making it suitable for heating, air conditioning, and refrigeration circuits.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB1125 |
| Series | THQB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Quick-Make/Quick-Break, Non-Interchangeable Trip |
Product FAQs
5 answersCan I substitute a THQL1125 plug-in breaker with the THQB1125?
No. The THQB1125 utilizes a bolt-on connection designed specifically for commercial panelboards. The THQL series uses a plug-in mounting style for residential load centers. Because of these different mounting configurations, they cannot be used interchangeably.
What equipment is the THQB1125 designed to be installed in?
This bolt-on miniature circuit breaker is engineered for installation in GE A-Series panelboards and GE AQ Lighting Panels. It requires a panel interior specifically designed to accept Q-Line bolt-on branch breakers.
Is the GE THQB1125 circuit breaker HACR rated?
Yes, the THQB1125 is HACR rated. This makes it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific type of circuit protection.
What is the recommended lug tightening torque for the THQB1125?
For the box lugs on the THQB1125, the manufacturer specifies a tightening torque of 35 in-lb for 14-10 AWG wire and 40 in-lb for 8 AWG wire.
Is there a difference between the ABB THQB1125 and the GE THQB1125?
No. ABB acquired the GE Industrial Solutions division, which manufactures the Q-Line breaker family. The THQB1125 is the identical component built to the same specifications, though newer stock may carry the ABB brand name on the label.
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Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 110 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 4/16/26
Customers say these circuit breakers arrive quickly and work as expected. Many reviews mention fast shipping, with some receiving orders overnight or within days. Users report the breakers fit properly, install easily, and function correctly in both residential and commercial applications. Common feedback includes competitive pricing and good packaging that protects products during shipping. While most praise the ordering process as straightforward, some note occasional issues with missing installation screws or receiving updated product versions instead of pictured models. Several contractors and electricians appreciate having access to hard-to-find or obsolete breakers when local suppliers lack inventory.
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Rating
110 reviews
- SPSarah P.Verified BuyerReviewingABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Exactly as Described
These are so hard to find at a good price. Will be ordering again.
- SBSeth B.Verified BuyerReviewingABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/8/26Hard to find older style breakers
I am pleased to have access to these breakers. We have a number of them at our church. Local suppliers said that they had never seen this kind of breaker. They fit our panel perfectly.
- TZThomas Z.Verified BuyerReviewingABB / General Electric THQB32040 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/30/26Great company
This company is awesome. Every time I call them and I need help with something. They’re right there to help me. They’re also very knowledgeable. They go out of their way to get you the product that you need right away and not a great price.
- TDTerry D.Verified BuyerReviewingABB / General Electric THQB2130GFT - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/24/2630 AMP GFCI @ POLE
Breakers were new in box as advertised. Good turn around on orders Reasonable pricing much less than abb dealer
- LMLeslie M.Verified BuyerReviewingABB / General Electric THQB21100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Perfect fit.
Always timely with delivery and a perfect.fit.