ABB / General ElectricTHQB2140GFT2
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Free Shipping Over $99
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ABB / General Electric THQB2150GFT2 GFCI Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
ABB / General Electric
THQB2150GFT2
GFCI Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB2150GFT2
Quantity
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ABB / General Electric THQB2150GFT2 - 50A GFCI Miniature Circuit Breaker
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Description
Built to meet stringent safety standards, the GE THQB2150GFT2 provides reliable ground fault and overcurrent protection. This 50A, 2-pole GFCI breaker is ideal for residential, commercial, and industrial environments requiring wet or damp location safety. Designed as a direct replacement for the legacy THQB2150GF, it bolts securely into GE A-Series panelboards and AQ lighting panels. Rated for 10kAIC at 120/240VAC, the unit features a non-interchangeable thermal-magnetic trip and HACR rating.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | THQB |
| Amperage | 50A |
| Poles | 2 |
| 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 | 8-3 AWG (Cu/Al) |
| Max Wire | 3 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Self-Test Ground Fault Module |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489, UL 943 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Internal Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip, Self-Test |
Product FAQs
6 answersDoes this breaker provide personnel or equipment ground fault protection?
The THQB2150GFT2 is a Class A GFCI device with a 5mA trip sensitivity [1.2.1]. It is designed to provide personnel protection in applications requiring ground fault safety, unlike equipment protection breakers that typically have a 30mA threshold.
How does the pigtail neutral function on this breaker?
The pre-attached pigtail wire must be connected to the neutral bus bar inside the panelboard. This connection provides the necessary return path reference for the internal circuitry to accurately monitor the load for ground fault leakage.
Can this bolt-on breaker be installed in standard GE residential load centers?
No. The THQB2150GFT2 features a bolt-on mounting configuration designed exclusively for commercial GE A-Series panelboards and AQ lighting panels. It cannot be installed in GE PowerMark Gold or similar residential plug-on load centers, which require THQL plug-on breakers.
Is this the correct replacement for the older THQB2150GF?
Yes. The THQB2150GFT2 serves as the direct replacement for the legacy GE THQB2150GF catalog number. It provides the exact same physical dimensions, bolt-on form factor, and Class A ground fault safety ratings.
Why is the brand listed as both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. The Q-Line miniature circuit breakers, including the THQB series, are now manufactured by ABB. They retain the original GE catalog numbers and form factors to ensure full backward compatibility with existing GE electrical panels.
Does this model include combination arc fault (CAFCI) protection?
No. This unit provides thermal magnetic overcurrent protection along with Class A ground fault detection. It does not include combination arc fault (CAFCI) protection circuitry.
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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.