ABB / General ElectricTHHQB2145
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ABB / General Electric THHQB2140 Miniature Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
ABB / General Electric
THHQB2140
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THHQB2140
Quantity
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ABB / General Electric THHQB2140 - 40A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
ABB / General Electric THHQB2140 - 40A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQB2140 |
| Series | THHQB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| Wire Gauge | 8-3 AWG (Cu), 8-3 AWG (Al) |
| Max Wire | 3 AWG |
| Min Wire | 8 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Sold out
Quantity
ABB / General Electric THHQB2140 - 40A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQB2140-R |
| Series | THHQB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| Wire Gauge | 8-3 AWG (Cu), 8-3 AWG (Al) |
| Max Wire | 3 AWG |
| Min Wire | 8 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
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Description
Designed for commercial environments, this 40A Q-Line component delivers robust thermal-magnetic protection. The unit features a quick-make, quick-break mechanism for consistent operation. Installation requires a bolt-on connection into compatible GE A-Series panelboards or AQ lighting panels. It accommodates 8-3 AWG copper or aluminum wiring through standard box lugs. Rated at 22kAIC, it handles higher fault currents than standard residential models.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQB2140 |
| Series | THHQB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| Wire Gauge | 8-3 AWG (Cu), 8-3 AWG (Al) |
| Max Wire | 3 AWG |
| Min Wire | 8 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Product FAQs
6 answersCan I install the THHQB2140 in a standard GE residential load center?
No. The THHQB2140 is a bolt-on circuit breaker designed for commercial GE A-Series panelboards and AQ Lighting Panels. Standard GE residential load centers, such as PowerMark Gold, require plug-on breakers like the THQL or THQP series.
What is the difference between GE THQB and THHQB circuit breakers?
The primary difference is the interrupting rating. The standard THQB series is rated for 10kAIC, while the THHQB series features a higher interrupting capacity of 22kAIC. Both share the same 1-inch per pole bolt-on physical footprint.
What wire sizes are compatible with the box lugs on the THHQB2140?
The box lugs on this 40A breaker accept 8 AWG to 3 AWG copper or aluminum conductors.
Why is this breaker listed as both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Circuit breakers in the GE Q-Line family, including the THHQB series, are now manufactured and supported by ABB while maintaining the original GE design and compatibility.
Can the THHQB2140 be used to supply a 120V single-phase load?
This is a 2-pole breaker designed to supply 240V loads or 120/240V multi-wire branch circuits. If you only need to supply a single 120V load, a 1-pole breaker like the THHQB1140 is required.
Does the THHQB2140 have adjustable trip settings?
No. This breaker features a fixed thermal-magnetic trip unit with standard long-time and instantaneous trip functions.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
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Rating
13 reviews
- JLJames L. L.Verified BuyerReviewingABB / General Electric THHQB21100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/6/26ABB / General Electric THHQB21100
Fast Service and delivery, The breaker was as described and brand new! Great pricing and great Service. I paid extra for UPS ground, it was delivered quickly.
- SNScott N.Verified BuyerReviewingABB / General Electric THHQB32030 - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/30/25Perfect
The correct breaker the first time - every time.
- AGAlejandra G.Verified BuyerReviewingABB / General Electric THHQB1140 - 40A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Everithing is good!
Everithing is good!
- LMLuis M.ReviewingABB / General Electric THHQB2145 - 45A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/19/23Good product and good service
Good product and good service
- SHScott H.ReviewingABB / General Electric THHQB2180 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/21/2280amp commercial breaker
Great how easy it was to order and how fast I got it. I will order one again when needed