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ABB / General Electric THQB1115GF GFCI Miniature Circuit Breaker

  • 15A
  • 1 Pole
  • Bolt-On
ABB / General Electric THQB1115GF
GFCI Miniature Circuit Breaker
Brand ABB / General Electric
SKU THQB1115GF
Select Item Condition
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  • 15A
  • 1 Pole
  • Bolt-On

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General Electric THQB1115GF 1 Pole Circuit Breaker Ground Fault

ABB / General Electric THQB1115GF - 15A GFCI Miniature Circuit Breaker

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$142.10 In Stock

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Description

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 Note that this specific model has been superseded by the THQB1115GFT, which adds modern self-testing capabilities.

Specifications

Key specifications
Brand ABB / General Electric
Part Number THQB1115GF
Series THQB
Amperage 15A
Poles 1
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
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)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LIG
Trip Function Long-Time, Instantaneous, Ground Fault
Trip Adjustability Fixed
Standards and features
Special Classification GFCI
Available Options Shunt Trip, Auxiliary Switch, Padlock Attachment
Accessories Load Side Lugs Included, Pigtail Neutral
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489, UL 943
Approval CSA, HACR, SWD, UL
Temp Rating 40C
Construction Features 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.

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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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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

4.9
Rated 4.9 out of 5 stars
Based on 110 reviews
Reviews Summary
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.
Rating
Ratings
110 reviews
  • SP
    Sarah P.
    Verified Buyer
    Reviewing
    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
    I recommend this product
    Rated 5 out of 5 stars
    7/16/26
    Perfect fit.

    Always timely with delivery and a perfect.fit.