ABB / General ElectricTHQL2120GF1
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ABB / General Electric THQL2120GF GFCI Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
ABB / General Electric
THQL2120GF
GFCI Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQL2120GF
Quantity
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ABB / General Electric THQL2120GF - 20A GFCI Miniature Circuit Breaker
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ABB / General Electric THQL2120GF - 20A GFCI Miniature Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL2120GF |
| Series | THQL |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE PowerMark Gold Load Centers, ABB ReliaHome Load Centers |
| 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, Shunt Trip, Auxiliary Switch |
| Accessories | Pigtail Neutral |
| Standards | HACR, UL 489, UL 943 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break |
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ABB / General Electric THQL2120GF - 20A GFCI Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL2120GF-R |
| Series | THQL |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE PowerMark Gold Load Centers, ABB ReliaHome Load Centers |
| 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, Shunt Trip, Auxiliary Switch |
| Accessories | Pigtail Neutral |
| Standards | HACR, UL 489, UL 943 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break |
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Description
Built for residential and commercial use, the THQL2120GF delivers reliable 5mA Class A ground fault protection. This 2-pole, 20A breaker helps meet NEC requirements for wet or damp locations. It installs into GE PowerMark Gold and ABB ReliaHome load centers using a standard plug-on mount. This model is replaced by the THQL2120GFT self-test version. Featuring a pigtail neutral and thermal-magnetic trip technology, this Q-Line breaker ensures robust defense against electrical hazards.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL2120GF |
| Series | THQL |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE PowerMark Gold Load Centers, ABB ReliaHome Load Centers |
| 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, Shunt Trip, Auxiliary Switch |
| Accessories | Pigtail Neutral |
| Standards | HACR, UL 489, UL 943 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break |
Product FAQs
5 answersDoes the THQL2120GF fit older GE residential load centers?
Yes. In addition to current ABB ReliaHome and GE PowerMark Gold panels, this 1-inch Q-Line breaker is backward compatible with legacy GE residential panels that accept standard THQL plug-on breakers.
What is the ground fault trip threshold for this breaker?
This breaker provides Class A personnel protection with a 5mA ground fault trip threshold.
How is the pigtail neutral wired on this 2-pole GFCI?
The coiled white pigtail wire connects directly to the neutral bus bar in the load center. The neutral wire from the branch circuit and both ungrounded (hot) conductors connect directly to the box lugs on the breaker itself.
When is a 20A 2-pole GFCI breaker typically required?
It is used for 240V circuits or 120/240V multi-wire branch circuits (MWBC) in wet or damp locations that mandate personnel protection, such as specific pool equipment, hot tubs, or outdoor receptacles.
What is the difference between the THQL2120GF and the THQL2120GFT?
The THQL2120GFT is the newer, self-testing version of the standard THQL2120GF. Both are 20A, 2-pole, Class A GFCI breakers with identical dimensions and plug-on mounting profiles, making them exact drop-in replacements for each other.
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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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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 5.0 out of 5 based on 90 reviews.
Total 5 star reviews: 88 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 78 most recent customer reviews
Last updated 8/5/25
Customers say these circuit breakers arrive quickly and fit their electrical panels perfectly. Many reviews mention competitive pricing compared to local suppliers. Frequent comments address the secure packaging and prompt delivery. Reviews highlight the exact match to specifications and ease of installation. The selection receives particular praise, especially for hard-to-find models.
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Rating
90 reviews
- KLKim L.Verified BuyerReviewingABB / General Electric THQL2130 - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/6/26Circuit Breaker
Thank you for your fast efficient service! We had a power outage and several power surges that took out our breaker. Fast easy inexpensive repair!!
- RHRussell H.Verified BuyerReviewingABB / General Electric THQL1120GF - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/20/26Hard To Find
Had an old breaker that was hard to find but they had it and at a reasonable price!
- JBJeff B.Verified BuyerReviewingABB / General Electric THQL32030 - 30A 3 Pole Miniature Circuit BreakerRated 3 out of 5 stars7/14/26No paperwork
Part arrived, would have been nice to receive a packing slip or something in the box beside the part.
- SNScott N.Verified BuyerReviewingABB / General Electric THQL32100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Owner
Worked great, breaker was the exact match
- JDJerry D.Verified BuyerReviewingABB / General Electric THQL32050 - 50A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/19/26Best place to get great prices on 3pole breakers
i have bought from super breakers before & when i need these for a job i know they will be great. i buy to restock my truck.