ABB / General Electric THQL1115ST1 Miniature Circuit Breaker
- 15A
- 1 Pole
- Plug-On
Quantity
ABB / General Electric THQL1115ST1 - 15A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Featuring a 120VAC shunt trip accessory, this 15A breaker enables remote tripping capabilities. It provides standard thermal-magnetic protection alongside automated disconnect functions. The assembly mounts into GE Q-Line and PowerMark Gold load centers, occupying two spaces due to the attached module. It accepts 14-8 AWG copper wire. Rated at 10kAIC, the unit maintains HACR, SWD, and HID classifications for versatile performance across commercial lighting and motor loads.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL1115ST1 |
| Series | THQL |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE Q-Line Load Centers, PowerMark Gold Load Centers |
| 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 | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, SWD Rated, HID Rated, Quick-Make/Quick-Break |
Product FAQs
5 answersWhat load centers accept the THQL1115ST1 breaker?
This plug-in breaker is compatible with GE Q-Line and PowerMark Gold load centers. It requires one inch of space per pole. It is not suitable for bolt-on panelboards, which require THQB series breakers instead.
What does the ST1 suffix mean on this GE circuit breaker?
The ST1 designation indicates the breaker is equipped with a factory-installed 120V AC shunt trip. This allows the breaker to be opened remotely by an external control signal, which is often required for emergency stop circuits or fire alarm interfaces.
What is the required control voltage for the shunt trip coil?
The shunt trip mechanism on the THQL1115ST1 requires a 120V AC control circuit to operate. Applying the correct voltage to the shunt trip leads will remotely open the breaker contacts.
Are ABB and GE THQL1115ST1 breakers interchangeable?
Yes. Following ABB's acquisition of GE Industrial Solutions, Q-Line breakers continue production under the exact same catalog numbers. An ABB-branded THQL1115ST1 is identical in form, fit, and function to a legacy GE-branded unit.
How should the wiring be terminated on the THQL1115ST1?
The breaker features standard box lugs that accept 14 to 8 AWG copper or 12 to 8 AWG aluminum conductors. Ensure the panel is de-energized before landing wires and verify proper torque specifications during installation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 90 reviews.
- KLKim L.Verified BuyerReviewingABB / General Electric THQL2130 - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/6/26Circuit Breaker
Thank you for your fast efficient service! We had a power outage and several power surges that took out our breaker. Fast easy inexpensive repair!!
- RHRussell H.Verified BuyerReviewingABB / General Electric THQL1120GF - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/20/26Hard To Find
Had an old breaker that was hard to find but they had it and at a reasonable price!
- JBJeff B.Verified BuyerReviewingABB / General Electric THQL32030 - 30A 3 Pole Miniature Circuit BreakerRated 3 out of 5 stars7/14/26No paperwork
Part arrived, would have been nice to receive a packing slip or something in the box beside the part.
- SNScott N.Verified BuyerReviewingABB / General Electric THQL32100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Owner
Worked great, breaker was the exact match
- JDJerry D.Verified BuyerReviewingABB / General Electric THQL32050 - 50A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/19/26Best place to get great prices on 3pole breakers
i have bought from super breakers before & when i need these for a job i know they will be great. i buy to restock my truck.