ABB / General Electric THHQB1130ST1 Miniature Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
Quantity
ABB / General Electric THHQB1130ST1 - 30A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for commercial applications, this 30A single-pole device features a factory-installed 120VAC shunt trip mechanism. The unit provides reliable thermal-magnetic protection for environments requiring remote tripping capabilities. Designed to fit GE A-Series and ReliaGear panelboards, the bolt-on mounting ensures a secure connection. It accommodates 14-8 AWG copper or 12-8 AWG aluminum wiring. Carrying a 22kAIC rating, this Q-Line component delivers high fault current handling.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | THHQB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE A-Series Panelboards, ReliaGear Panelboards |
| 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 |
| Available Options | Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Quick-Make/Quick-Break, Visual Trip Indicator, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards accept the THHQB1130ST1 circuit breaker?
This bolt-on breaker is designed specifically for GE A-Series and ReliaGear panelboards. Because it uses a bolt-on connection, it cannot be installed in standard GE PowerMark residential load centers that require plug-in (THQL) breakers.
What function does the ST1 suffix provide on the THHQB1130ST1?
The ST1 designation indicates a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be opened remotely using an external control signal, such as an emergency stop button or a fire alarm relay.
How does the THHQB1130ST1 differ from a standard THQB breaker?
The THHQB series features a higher interrupting capacity. While standard THQB breakers are rated at 10kAIC, this THHQB model is rated for 22kAIC at 120V, making it suitable for commercial applications with higher available fault currents.
Why might this breaker arrive with ABB branding instead of GE?
ABB acquired GE Industrial Solutions in 2018. The Q-Line breaker family continues production under the exact same catalog numbers, so a THHQB1130ST1 may feature either GE or ABB branding depending on the manufacturing date. They are fully interchangeable.
What are the wire gauge requirements for the THHQB1130ST1 box lugs?
The terminal lugs accommodate 14 to 8 AWG copper conductors or 12 to 8 AWG aluminum conductors. Ensure proper torque specifications are followed during installation.
Is the trip unit on this 30A breaker adjustable?
No, the THHQB1130ST1 features a fixed thermal-magnetic trip unit. It provides standard long-time (overload) and instantaneous (short circuit) protection without adjustable settings.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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