ABB / General Electric THQC1120GFT GFCI Molded Case Circuit Breaker
- 20A
- 1 Pole
- DIN Rail
Quantity
ABB / General Electric THQC1120GFT - 20A GFCI Molded Case Circuit Breaker
New
Quantity
Description
A drop-in replacement for the discontinued THQC1120GF, this updated single-pole breaker adds automatic self-testing to its 5mA ground fault protection. It attaches to standard DIN rail systems inside OEM enclosures and commercial control panels. The integrated diagnostic feature routinely verifies the internal circuitry, ensuring continuous compliance with modern NEC safety codes for damp environments without requiring manual intervention.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQC1120GFT |
| Series | THQC |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | THQC |
|---|---|
| Terminal Type | Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Enclosures |
| 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 | Line and Load Lugs Included, Pigtail Neutral |
| Standards | HACR, SWD, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, SWD Rated, Quick-Make/Quick-Break, Self-Test |
| Special Features | Self-Test |
Product FAQs
6 answersWhat does the GFT suffix mean on this GE circuit breaker?
The GFT suffix indicates that the breaker provides personnel-level ground fault protection and includes an automatic self-test feature to ensure the internal GFCI circuitry is functioning properly.
What level of ground fault protection does this breaker provide?
It provides Class A ground fault protection, meaning it is calibrated to trip when it detects a ground fault leakage current of 5mA, protecting personnel from electrical shock hazards.
Can the THQC1120GFT replace older THQC1120GF models?
Yes, it serves as a direct drop-in replacement for the discontinued THQC1120GF. The updated GFT version adds automatic self-testing capabilities to comply with modern NEC requirements while maintaining the exact same physical footprint.
How is the neutral connection handled on this GFCI breaker?
This breaker features a pigtail neutral wire that must be connected directly to the neutral bus bar in your panel or enclosure to power the internal ground fault sensing circuitry.
What types of enclosures or panels accept the THQC1120GFT?
As part of the GE Q-Line family, this specific THQC breaker is designed for installation in DIN rail systems, OEM control panels, and compatible commercial enclosures rather than standard residential load centers.
What does the LIG trip function code indicate?
The LIG designation means this thermal magnetic breaker provides Long-Time overload protection, Instantaneous short circuit protection, and Ground-Fault protection in a single unit.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 42 reviews.
- POPaul O.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars9/3/26Recent Breaker Purchases
These breakers matched perfectly for my main AC supplies for my boat. I had the original 43-year-old Chinese (GenFu) breakers that failed and these GEs were a perfect match. My only reservation for not providing a 5-star review is breakers do not arrive in GE's original packaging which can lead to questions whether they are truly "new" breakers. Otherewise, happy I found some that replaced my originals. Thanks SB!
- AAAlfredo A.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/26/26Replacement of disconnect switches
Good product and price
- JSJoe S.Verified BuyerReviewingABB / General Electric THQC32015WL - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/22/26THQC tough to find…
Works as should
- MPMike P.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/6/26Everything worked out just fine. I would recommend it again.
Considering how old the panel was the breaker worked out just fine. Were you again?
- QPQuang P.Verified BuyerReviewingABB / General Electric THQC2130 - 30A 2 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/10/26Fast Shipping & Quality Service
Great experience with SuperBreakers! The GE THQL 60A and 30A breakers arrived with fast shipping and professional packaging. The free shipping was a huge bonus. My HVAC is back up and running—excellent service!