ABB / General Electric THQC1120GFEP GFEP Molded Case Circuit Breaker
- 20A
- 1 Pole
- DIN Rail
Quantity
ABB / General Electric THQC1120GFEP - 20A GFEP Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial and industrial applications, this single-pole 20A GFEP breaker protects sensitive equipment from low-level ground faults. By utilizing a 30mA trip curve rather than a 5mA personnel threshold, it ensures reliable operation of heat tracing and automated machinery without unnecessary interruptions. The lug-to-lug terminal design supports versatile DIN rail or base mounting in OEM panels. This Q-Line component features a 10kAIC rating at 120V and is HACR rated.Specifications
| Brand | ABB / General Electric |
|---|---|
| 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 | GE Q-Line Enclosures, DIN Rail, OEM Panels |
| 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 | GFEP |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Lugs |
| Standards | HACR, UL 1053, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, SWD Rated, Quick-Make/Quick-Break, Visual Trip Indicator |
Product FAQs
6 answersWhat is the ground fault trip threshold for the THQC1120GFEP?
This GFEP breaker has a 30mA trip sensitivity. It is designed to protect equipment from low-level ground faults, rather than the 5mA threshold used by Class A GFCI breakers for personnel protection.
Will the THQC1120GFEP fit in a standard GE residential load center?
No. Standard GE residential load centers require plug-in THQL breakers. The THQC series features a lug-to-lug design intended for DIN rail mounting or base mounting in OEM control panels and specific Q-Line enclosures.
How is the THQC1120GFEP mounted in a panel?
This breaker uses a lug-to-lug feed-thru design and can be mounted on a standard 35mm DIN rail or base-mounted in compatible OEM control panels and enclosures.
How do I connect the neutral on this GFEP breaker?
The breaker includes a coiled white pigtail wire that must be connected directly to the panel neutral bus bar to power the internal ground fault circuitry. The load neutral connects to the designated terminal on the breaker itself.
Can I use this 30mA GFEP breaker for bathroom or kitchen receptacles?
No. The THQC1120GFEP has a 30mA trip threshold intended for equipment protection, such as heat tracing or snow melting systems. Areas requiring personnel protection must use a Class A GFCI breaker with a 5mA trip threshold.
Does this ABB breaker replace older GE THQC1120GFEP models?
Yes. ABB acquired GE Industrial Solutions, so this breaker is a direct drop-in replacement for older GE-branded THQC 20A 1-pole GFEP breakers. It maintains the exact same physical dimensions, lug-to-lug mounting, and trip characteristics.
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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!