ABB / General ElectricTHQL32090ST1
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ABB / General Electric THQL32100ST1 Miniature Circuit Breaker
- 100A
- 3 Pole
- Plug-On
ABB / General Electric
THQL32100ST1
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQL32100ST1
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ABB / General Electric THQL32100ST1 - 100A 3 Pole Miniature Circuit Breaker
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Description
The THQL32100ST1 is a 100-amp, 3-pole breaker from GE's Q-Line series. It provides standard thermal-magnetic protection while incorporating a factory-installed 120VAC shunt trip for remote tripping applications. Designed for plug-on installation, this breaker fits securely into GE Q-Line load centers and lighting panels. The box lugs accept 6-1/0 AWG copper or 4-1/0 AWG aluminum conductors. With a 10 kAIC rating at 240VAC, it features an internal common trip and carries an HACR rating.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL32100ST1 |
| Series | THQL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE Q-Line Load Centers, Lighting Panels |
| Wire Gauge | 6-1/0 AWG (Cu), 4-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 6 AWG (Cu), 4 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, Internal Common Trip, Quick-Make/Quick-Break, Reverse Feed |
Product FAQs
5 answersWhat does the ST1 suffix indicate on the THQL32100ST1 catalog number?
The ST1 suffix indicates that this circuit breaker includes a factory-installed 120V AC shunt trip accessory. This allows the breaker to be tripped remotely by applying a 120V signal to the shunt trip coil, which is commonly used for emergency power-off or fire alarm integration.
Which electrical panels are compatible with the THQL32100ST1 circuit breaker?
This plug-on breaker is designed exclusively for use in GE Q-Line load centers and compatible GE lighting panels, such as the AL series, that accept 1-inch per pole THQL breakers. It is not interchangeable with Square D, Siemens, or Eaton panels.
Is there a difference between the ABB and GE versions of the THQL32100ST1?
No. ABB acquired GE Industrial Solutions in 2018. The THQL circuit breaker line continues under the exact same catalog numbers and manufacturing standards, meaning an ABB-branded breaker is a direct, identical replacement for a legacy GE-branded breaker.
How many panel spaces does the THQL32100ST1 require for installation?
As a 3-pole breaker in the Q-Line series, it requires three standard 1-inch spaces in a compatible GE load center or panelboard.
Does the THQL32100ST1 provide ground fault or arc fault protection?
No. This is a standard thermal-magnetic circuit breaker providing overload and short-circuit protection, along with the remote shunt trip feature. It does not include GFCI or AFCI protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 90 reviews.
Total 5 star reviews: 88 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 78 most recent customer reviews
Last updated 8/5/25
Customers say these circuit breakers arrive quickly and fit their electrical panels perfectly. Many reviews mention competitive pricing compared to local suppliers. Frequent comments address the secure packaging and prompt delivery. Reviews highlight the exact match to specifications and ease of installation. The selection receives particular praise, especially for hard-to-find models.
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Rating
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.