ABB / General ElectricTHQB1115GF
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Free Shipping Over $99
Free Shipping Over $99
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ABB / General Electric THQB1115GFT GFCI Miniature Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
ABB / General Electric
THQB1115GFT
GFCI Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB1115GFT
Quantity
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ABB / General Electric THQB1115GFT - 15A GFCI Miniature Circuit Breaker
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Description
The THQB1115GFT is a 1-pole, 15-amp ground fault circuit breaker designed for residential, commercial, and industrial use. It provides essential 5mA Class A protection against electrical shock, making it ideal for bathrooms, kitchens, and outdoor receptacles per NEC requirements. Mounting into GE A-Series panelboards and AQ lighting panels, this bolt-on breaker serves as a drop-in replacement for the older THQB1115GF.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | THQB |
| Amperage | 15A |
| 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 | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Quick-Make/Quick-Break, Non-Interchangeable Trip, Self-Test |
Product FAQs
7 answersWhat is the difference between the THQB1115GFT and the older THQB1115GF?
The THQB1115GFT includes an automatic self-test feature to ensure the ground fault circuitry is functioning properly. It serves as a direct, drop-in replacement for the discontinued THQB1115GF.
Can I use the THQB1115GFT in a standard residential GE load center?
Typically, no. This is a THQB bolt-on breaker designed for commercial GE A-Series panelboards and AQ lighting panels. Standard residential GE load centers usually require THQL plug-in breakers.
What is the ground fault trip sensitivity of this breaker?
It provides Class A ground fault protection with a 5mA trip sensitivity. This level of protection is specifically designed to protect personnel from severe electrical shock in areas like bathrooms, kitchens, and outdoor receptacles.
How is the neutral connection handled during installation?
This breaker includes a factory-installed pigtail neutral wire. You must route and connect this pigtail directly to the panelboard's neutral bus bar to ensure the ground fault detection circuitry operates correctly.
Is the THQB1115GFT interchangeable with bolt-on breakers from other brands?
No. While other manufacturers offer similar bolt-on designs, this GE Q-Line breaker is only UL listed for use in compatible GE panelboards. Installing it in a different brand's panel violates code and creates safety hazards.
What happens if the self-test feature detects a failure?
If the automatic self-test identifies a compromised ground fault component, the breaker will trip and lock out. It will prevent power from being restored until the faulty unit is replaced, ensuring continuous personnel protection.
What does the LIG trip function code mean for this breaker?
LIG indicates the breaker provides Long-Time thermal overload protection, Instantaneous short circuit protection, and Ground-Fault protection. This combination safeguards wiring from overheating while also protecting users from shock hazards.
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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.