ABB / General Electric THQL1120DF Dual Function Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
ABB / General Electric THQL1120DF - 20A Dual Function Miniature Circuit Breaker
New
Quantity
Description
Delivering comprehensive safety for residential circuits, the GE THQL1120DF provides combination arc-fault and ground-fault protection. It meets NEC requirements for spaces needing dual protection. This 20A, single-pole breaker features a plug-on design and pigtail neutral. It installs into GE Q-Line, PowerMark Gold, and ABB ReliaHome load centers. Rated for 10 kAIC at 120/240V, the thermal-magnetic device includes a visual trip indicator, self-test function, and HACR rating.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL1120DF |
| Series | THQL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE Q-Line Load Centers, 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 | Dual Function (AFCI/GFCI) |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, HACR, SWD, UL 1699, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, SWD Rated, Quick-Make/Quick-Break, Visual Trip Indicator, Self-Test |
Product FAQs
6 answersWhat load centers accept the THQL1120DF breaker?
It is compatible with GE Q-Line, GE PowerMark Gold, and ABB ReliaHome load centers that are designed to accept standard 1-inch plug-on breakers.
Are THQL and THQP breakers interchangeable?
THQL breakers are standard 1-inch wide, while THQP breakers are 1/2-inch slimline models. They are not universally interchangeable. You can only use THQP breakers if your panelboard label explicitly permits thin or tandem breakers in specific slots.
What protection does a Dual Function (DFCI) breaker provide?
A dual function breaker combines Arc Fault Circuit Interrupter (AFCI) and Ground Fault Circuit Interrupter (GFCI) technology. It protects against electrical fires caused by arcing and electrical shocks caused by ground faults in a single device.
How do I wire the pigtail neutral on the THQL1120DF?
The coiled white pigtail wire must be routed and connected directly to the neutral bus bar in the panel. This connection is required to power the internal AFCI and GFCI diagnostic circuitry.
Does the THQL1120DF have diagnostic indicators for troubleshooting trips?
Yes, this breaker features an internal LED that indicates the last known trip condition. When the breaker is re-energized after a trip, the LED displays a specific color pattern to help identify if the fault was an overload, ground fault, or arc fault.
Are ABB and GE THQL1120DF breakers the same product?
Yes. Following ABB's acquisition of GE Industrial Solutions, the THQL line is manufactured by ABB. Breakers may be branded as GE, ABB, or co-branded, but they are the exact same component and are fully interchangeable.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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.