ABB / General ElectricTHQB2130GFEP
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ABB / General Electric THQB2120GFEP GFEP Miniature Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
ABB / General Electric
THQB2120GFEP
GFEP Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB2120GFEP
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ABB / General Electric THQB2120GFEP - 20A GFEP Miniature Circuit Breaker
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Description
Part of the Q-Line family, the GE THQB2120GFEP is a two-pole, 20A circuit breaker designed for equipment protection. It utilizes a 30mA ground fault threshold to shield machinery from damaging leakage currents. This unit mounts into GE A-Series panelboards using a secure bolt-on connection. The breaker is equipped with standard box lugs that accommodate 14-8 AWG copper or 12-8 AWG aluminum conductors. Delivering a 10kAIC rating at 120/240VAC, it features an internal common trip.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB2120GFEP |
| Series | THQB |
| Amperage | 20A |
| 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 |
| 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 Thermal, Fixed Magnetic |
| Special Classification | GFEP |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Internal Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip, Self-Test |
Product FAQs
5 answersWhat panelboards are compatible with the THQB2120GFEP?
This bolt-on circuit breaker is designed for use in GE A-Series panelboards and AQ lighting panels. It will not fit in standard residential load centers that require plug-on breakers.
What does the GFEP designation mean on this breaker?
GFEP stands for Ground Fault Equipment Protection. This breaker utilizes a 30mA trip threshold to protect machinery, heat trace cables, and other equipment from damaging leakage currents, preventing nuisance tripping that might occur with a standard 5mA personnel protection breaker.
How do I wire the pigtail neutral on this breaker?
The attached white pigtail wire must be connected directly to the neutral bus bar in your panelboard. This connection is required to power the internal ground fault sensing circuitry.
Can I install the THQB2120GFEP in a panel that uses THQL breakers?
No. The THQB series features a bolt-on connection for commercial panels, while the THQL series uses a plug-on connection. They are not interchangeable.
Can I substitute the THQB2120GFEP for a THQB2120GF?
No. The THQB2120GFEP provides 30mA equipment protection, while the THQB2120GF provides 5mA personnel protection. You must use the specific breaker type required by your equipment manufacturer and local electrical codes.
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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.
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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.
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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.
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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
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.