ABB / General ElectricTHQL32060ST1
Free Shipping Over $99
ABB / General Electric THQL32040ST1 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Plug-On
ABB / General Electric
THQL32040ST1
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THQL32040ST1
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
ABB / General Electric THQL32040ST1 - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
ABB / General ElectricTHQL32020ST1
20A 3 Pole Molded Case Circuit Breaker
ABB / General ElectricTHQL32070ST1
70A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial use, the THQL32040ST1 is a 40A, three-pole circuit breaker from GE's Q-Line series. It comes equipped with a factory-installed shunt trip, allowing the breaker to be opened from a remote location. The plug-on design requires three inches of panel space and installs into GE PowerMark Gold load centers as well as A-Series panelboards. It accepts 8-3 AWG copper or aluminum wire via standard box lug terminals.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL32040ST1 |
| Series | THQL |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | THQL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE PowerMark Gold Load Centers, GE A-Series Panelboards |
| Wire Gauge | 8-3 AWG (Cu/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 | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break |
Product FAQs
8 answersWhich electrical panels are compatible with the THQL32040ST1 circuit breaker?
This plug-in breaker is designed for use in GE PowerMark Gold load centers and GE A-Series panelboards that accept 3-pole Q-Line breakers.
What does the ST1 suffix indicate on this GE circuit breaker?
The ST1 suffix means the breaker includes a factory-installed 120V AC shunt trip. This allows the breaker to be tripped remotely by an external control signal, such as an emergency stop button or fire alarm interface.
How much panel space is required to install the THQL32040ST1?
As a standard 3-pole Q-Line breaker, it requires three one-inch spaces in the panel, totaling three inches of overall width.
How is the shunt trip wired on this breaker?
The factory-installed 120V AC shunt trip includes pigtail leads that must be connected to your external control circuit. The control circuit requires a separate 120V power source to activate the trip mechanism remotely.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. The Q-Line circuit breakers continue to be manufactured under the same THQL catalog numbers, so a new ABB breaker is an exact, direct replacement for an older GE model.
Can the THQL32040ST1 be used in panels requiring bolt-on breakers?
No. The THQL series features a plug-in connection. If your panel requires a bolt-on connection, you will need the equivalent THQB series breaker.
Is this breaker suitable for heating, air conditioning, and refrigeration equipment?
Yes, GE Q-Line molded case circuit breakers are HACR rated, making them suitable for protecting multi-motor HVAC and refrigeration circuits that require a 40A, 3-pole disconnect.
Does this breaker have adjustable trip settings?
No, the THQL32040ST1 features a fixed thermal-magnetic trip unit with standard long-time and instantaneous protection functions.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
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.
Same Day Shipping
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.
Expedited Shipments
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.
International Shipping
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 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.
Search
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.