ABB / General Electric THHQL1120DF Dual Function Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
ABB / General Electric THHQL1120DF - 20A Dual Function Miniature Circuit Breaker
New
Quantity
Description
Rated 22 kAIC at 120/240VAC, this 20-amp dual function breaker combines Class A GFCI and combination AFCI technologies to maximize electrical safety. The GE THHQL1120DF installs into PowerMark Gold and ABB ReliaHome load centers utilizing a standard pigtail neutral connection. Engineered for modern code compliance, it provides essential self-testing capabilities and reliable thermal-magnetic tripping for residential or commercial branch circuits requiring comprehensive fault mitigation.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQL1120DF |
| Series | THHQL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE PowerMark Gold Load Centers, GE A-Series Panelboards, 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 | Shunt Trip, Auxiliary Switch, Padlock Attachment |
| Accessories | Pigtail Neutral, LED Trip Indicators |
| Standards | HACR, SWD, UL 1699, UL 489, UL 943 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, SWD Rated, Self-Test |
Product FAQs
7 answersWhich load centers are compatible with the THHQL1120DF circuit breaker?
This breaker is designed for use in GE PowerMark Gold load centers, GE A-Series panelboards, and ABB ReliaHome load centers that accept 1-inch Q-Line plug-in breakers.
What is the difference between the THHQL1120DF and the THQL1120DF?
The primary difference is the short-circuit interrupting rating. The THHQL1120DF is rated for 22kAIC, while the standard THQL1120DF is rated for 10kAIC. Both provide 20A dual function AFCI and GFCI protection.
Does the THHQL1120DF use a plug-on neutral or a pigtail neutral connection?
This breaker features a standard pigtail neutral wire that must be connected directly to the neutral bus bar in the panel to ensure proper AFCI and GFCI operation.
Can I use the THHQL1120DF on a multi-wire branch circuit with a shared neutral?
No. Because this is a dual function breaker that includes Class A GFCI protection, it requires a dedicated neutral. A shared neutral will cause an imbalance in the current flow, resulting in an immediate ground fault trip.
What type of protection does a Dual Function breaker provide?
A dual function breaker combines Combination Arc Fault and Class A 5mA Ground Fault protection in a single unit. It mitigates the risk of electrical fires caused by arcing and protects against severe electrical shock from ground faults.
How do I test the AFCI and GFCI functions on the THHQL1120DF?
The breaker includes a push-to-test button on the front face. Pressing this button manually verifies that the internal arc fault and ground fault detection circuits are operating correctly.
Will I receive an ABB or GE branded breaker when ordering the THHQL1120DF?
Following the acquisition of GE Industrial Solutions by ABB, this breaker may arrive with either ABB or GE branding. Both versions are identical in form, fit, and function, and are fully interchangeable under the same UL listings.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
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.
Same Day Shipping
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.
Expedited Shipments
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.
International Shipping
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 1 review.
- TGTim G.ReviewingABB / General Electric THHQL32020 - 20A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars2/17/22great service!
great service!