ABB / General Electric THHQL1120AF AFCI Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
ABB / General Electric THHQL1120AF - 20A AFCI Miniature Circuit Breaker
New
Quantity
Description
Providing essential branch and feeder arc-fault mitigation, this 20A single-pole breaker helps maintain compliance in older installations. It utilizes a standard pigtail neutral wire and delivers a 22kAIC interrupting capacity at 120/240VAC. Installation is supported across GE PowerMark Gold load centers and AQ Lighting panelboards. Note that this specific model has been superseded by the THHQL1120AF2 for combination AFCI needs. Thermal-magnetic trip technology ensures reliable defense.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQL1120AF |
| 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, ABB ReliaHome Load Centers, GE AQ Lighting 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Special Classification | AFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, UL 1699, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 10 to 50C |
| Construction Features | HACR Rated, SWD Rated, Quick-Make/Quick-Break |
Product FAQs
6 answersWhich load centers are compatible with the THHQL1120AF breaker?
This breaker is designed for use in GE PowerMark Gold and ABB ReliaHome load centers, as well as GE AQ Lighting Panels that accept 1-inch Q-Line plug-in breakers.
What is the difference between the THHQL1120AF and the THQL1120AF?
The THHQL1120AF features a higher interrupting rating of 22kAIC, whereas the standard THQL1120AF is rated for 10kAIC. Both are 20-amp, single-pole arc fault breakers that fit the same panels.
Does this AFCI breaker use a plug-on neutral or a pigtail connection?
The THHQL1120AF features a pigtail neutral connection. During installation, the coiled white pigtail wire must be routed and secured to the panel neutral bus bar for the arc fault detection circuitry to function properly.
What type of protection does the THHQL1120AF provide?
As an Arc Fault Circuit Interrupter (AFCI), it is designed to detect dangerous arcing conditions in the circuit that standard breakers might miss, helping to prevent electrical fires. It also provides standard thermal-magnetic protection against overloads and short circuits.
Why would I specify the THHQL1120AF over a standard 10kAIC breaker?
The 22kAIC interrupting rating makes this breaker suitable for installations with higher available fault currents, which is often required in commercial settings or multi-family dwellings located close to utility transformers.
Are the trip settings adjustable on the THHQL1120AF?
No, this breaker features fixed thermal and fixed magnetic trip settings for its long-time and instantaneous trip functions.
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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!