ABB / General ElectricTHQB1125ST1
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ABB / General Electric THQB1130ST1 Miniature Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
ABB / General Electric
THQB1130ST1
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB1130ST1
Quantity
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ABB / General Electric THQB1130ST1 - 30A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
ABB / General Electric THQB1130ST1 - 30A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB1130ST1 |
| Series | THQB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE AQ Lighting Panels, GE A-Series 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, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Quick-Make/Quick-Break |
Sold out
Quantity
ABB / General Electric THQB1130ST1 - 30A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB1130ST1-R |
| Series | THQB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE AQ Lighting Panels, GE A-Series 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, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Quick-Make/Quick-Break |
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Description
Part of the Q-Line family, the GE THQB1130ST1 is a 30A, single-pole miniature circuit breaker built for commercial power distribution. It features a thermal-magnetic trip mechanism for reliable overcurrent protection. This unit bolts securely into GE A-Series panelboards and AQ lighting panels. The bolt-on mounting style ensures a rigid, vibration-resistant connection to the bus bar. A factory-installed 120VAC shunt trip enables remote tripping of the breaker for emergency shutdowns.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB1130ST1 |
| Series | THQB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE AQ Lighting Panels, GE A-Series 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, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Quick-Make/Quick-Break |
Product FAQs
5 answersWhat panels are compatible with the THQB1130ST1 breaker?
This bolt-on breaker is designed specifically for installation in GE A-Series panelboards and GE AQ lighting panels.
What does the ST1 suffix mean on this GE circuit breaker?
The ST1 suffix indicates the breaker includes a factory-installed 120VAC shunt trip accessory. This allows the breaker to be tripped remotely by an external control signal, such as an emergency stop button or fire alarm system.
Can I substitute a plug-in THQL breaker for this THQB model?
No. While both are part of the GE Q-Line family, THQL breakers are plug-in units for residential load centers. The THQB1130ST1 is a bolt-on breaker required for commercial A-Series and AQ panels. They cannot be interchanged.
Is this breaker suitable for high fault current applications?
The THQB1130ST1 has a standard interrupting rating of 10kAIC at 120V. If your commercial panel requires a higher short-circuit rating, you must use a THHQB series breaker, which raises the interrupting capacity to 22kAIC within the same bolt-on footprint.
How does the thermal-magnetic trip mechanism operate on this unit?
The fixed thermal-magnetic trip unit provides dual protection. The thermal component responds to sustained overloads with a long-time delay, while the magnetic component provides an instantaneous trip response to safely clear severe short circuits.
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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.
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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.
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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.
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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 4.9 out of 5 based on 110 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 4/16/26
Customers say these circuit breakers arrive quickly and work as expected. Many reviews mention fast shipping, with some receiving orders overnight or within days. Users report the breakers fit properly, install easily, and function correctly in both residential and commercial applications. Common feedback includes competitive pricing and good packaging that protects products during shipping. While most praise the ordering process as straightforward, some note occasional issues with missing installation screws or receiving updated product versions instead of pictured models. Several contractors and electricians appreciate having access to hard-to-find or obsolete breakers when local suppliers lack inventory.
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Rating
110 reviews
- SPSarah P.Verified BuyerReviewingABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Exactly as Described
These are so hard to find at a good price. Will be ordering again.
- SBSeth B.Verified BuyerReviewingABB / General Electric THQB1120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/8/26Hard to find older style breakers
I am pleased to have access to these breakers. We have a number of them at our church. Local suppliers said that they had never seen this kind of breaker. They fit our panel perfectly.
- TZThomas Z.Verified BuyerReviewingABB / General Electric THQB32040 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/30/26Great company
This company is awesome. Every time I call them and I need help with something. They’re right there to help me. They’re also very knowledgeable. They go out of their way to get you the product that you need right away and not a great price.
- TDTerry D.Verified BuyerReviewingABB / General Electric THQB2130GFT - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/24/2630 AMP GFCI @ POLE
Breakers were new in box as advertised. Good turn around on orders Reasonable pricing much less than abb dealer
- LMLeslie M.Verified BuyerReviewingABB / General Electric THQB21100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Perfect fit.
Always timely with delivery and a perfect.fit.