ABB / General Electric THHQL21125 Miniature Circuit Breaker
- 125A
- 2 Pole
- Plug-On
Quantity
ABB / General Electric THHQL21125 - 125A 2 Pole Miniature Circuit Breaker
New
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Description
Providing robust thermal-magnetic protection, this 125A plug-on circuit breaker is engineered for main service or heavy feeder applications in residential and commercial systems. The breaker snaps securely into GE PowerMark Gold load centers, ABB ReliaHome enclosures, and GE AQ Lighting panels. Its box lug terminals accommodate 2-2/0 AWG copper or aluminum conductors. Rated for 22kAIC at 120/240VAC, the device features an internal common trip and is HACR rated for HVAC equipment.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQL21125 |
| Series | THHQL |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 208Y/120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 208Y/120VAC, 22kA @ 120/240VAC |
| Frame Type | THQL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE PowerMark Gold Load Centers, ABB ReliaHome Load Centers, GE AQ Lighting Panels |
| Wire Gauge | 2-2/0 AWG (Cu/Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 2 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Padlock Attachment |
|---|---|
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, High Interrupting Capacity, Quick-Make/Quick-Break |
Product FAQs
6 answersWhat is the difference between the THQL21125 and the THHQL21125?
Both are 125A, 2-pole Q-Line breakers that share the same physical dimensions and fit the same panels. The difference is the interrupting capacity. The standard THQL21125 is rated for 10kAIC, while the THHQL21125 is a high-interrupting version rated for 22kAIC at 120/240VAC.
How much panel space does the THHQL21125 require?
As a standard full-size Q-Line breaker, it requires two 1-inch spaces (2 inches total width) in a compatible load center.
Can I use the THHQL21125 in a standard GE load center?
Yes, this plug-on breaker is compatible with GE PowerMark Gold load centers, ABB ReliaHome load centers, and GE AQ Lighting panels. However, because it is a 125A breaker, you must verify that your specific panel and busbar are rated to safely accept a 125A branch or main breaker.
Can I use a THQP slimline breaker instead of the THHQL21125 to save space?
No. THQP half-inch breakers are only manufactured up to 50 amps. For a 125A circuit, you must use a full-size Q-Line breaker like the THHQL21125, which requires two standard 1-inch spaces.
Is the THHQL21125 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires a circuit breaker with this specific safety designation.
Does the THHQL21125 have an adjustable trip setting?
No, this breaker features a fixed thermal magnetic trip unit with standard long-time and instantaneous trip functions. The trip settings cannot be adjusted in the field.
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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!