Constructed for heavy-duty commercial environments, this single-pole 15A interrupter offers precise 5mA ground-fault monitoring. The unit includes a factory-installed pigtail neutral and carries a Switching Duty (SWD) rating for fluorescent lighting control. It fastens securely into GE A-Series panelboards and AQ lighting panels using standard bolt-on connections. Note that this specific model has been superseded by the THQB1115GFT, which adds modern self-testing capabilities.
HACR Rated, SWD Rated, Class A Ground Fault Protection (5mA), Non-Interchangeable Trip, Quick-Make/Quick-Break
Product FAQs
5 answers
Which panelboards are compatible with the THQB1115GF breaker?
This bolt-on breaker is designed specifically for GE A-Series panelboards and GE AQ lighting panels. It is not compatible with standard residential load centers that require plug-on connections.
Can I use the THQB1115GF in a standard GE Powermark load center?
No. The THQB1115GF uses a bolt-on mounting style for commercial panels. Standard GE Powermark residential load centers require plug-on breakers, such as the THQL1115GF.
How is the neutral connection handled on this GFCI breaker?
The THQB1115GF features a traditional pigtail neutral. The attached coiled white wire must be manually routed and terminated at the panel neutral bus bar to ensure proper ground fault detection.
Does this breaker provide equipment protection or personnel protection?
The THQB1115GF is a Class A Ground Fault Circuit Interrupter with a 5mA trip threshold. It is designed to provide personnel protection against electrical shock, rather than equipment protection which typically uses a 30mA threshold.
Is there a newer self-testing version of the THQB1115GF?
Yes, the THQB1115GF has been superseded by the THQB1115GFT. The newer model includes an automatic self-test feature to comply with updated UL 943 standards while maintaining the exact same physical dimensions and panel compatibility.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
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.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 110 reviews.
4.9
Rated 4.9 out of 5 stars
Based on 110 reviews
5
Rated out of 5 stars
104
4
Rated out of 5 stars
4
3
Rated out of 5 stars
0
2
Rated out of 5 stars
0
1
Rated out of 5 stars
2
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.
ABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/15/26
Exactly as Described
These are so hard to find at a good price. Will be ordering again.
SB
Seth B.
Verified Buyer
Reviewing
ABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/8/26
Hard 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.
TZ
Thomas Z.
Verified Buyer
Reviewing
ABB / General Electric THQB32040 - 40A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/30/26
Great 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.
TD
Terry D.
Verified Buyer
Reviewing
ABB / General Electric THQB2130GFT - 30A GFCI Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/24/26
30 AMP GFCI @ POLE
Breakers were new in box as advertised. Good turn around on orders Reasonable pricing much less than abb dealer
LM
Leslie M.
Verified Buyer
Reviewing
ABB / General Electric THQB21100 - 100A 2 Pole Miniature Circuit Breaker