ABB / General Electric THQD32225ST1 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THQD32225ST1 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for advanced control, the GE THQD32225ST1 is a 3-pole, 225A molded case circuit breaker featuring a factory-installed 120VAC shunt trip. This allows facility managers to remotely open the circuit for emergency shutdowns. Designed for commercial environments, this unit-mount breaker fits into GE A-Series panelboards. It utilizes fixed thermal-magnetic trip units for reliable protection. With a 22kAIC rating at 240VAC, it safely clears high-level faults and includes a trip-free mechanism.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQD32225ST1 |
| Series | THQD |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 120VAC, 22kA @ 240VAC, 22kA @ 120/240VAC |
| Frame Type | THQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Lockout Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Line and Load Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, High Interrupting Capacity, Reverse Feed, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhy is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. The THQD32225ST1 is manufactured to the exact same specifications, form, and fit under both brands. You may receive a breaker with either an ABB or GE label depending on the production date.
Which panelboards are compatible with the THQD32225ST1 circuit breaker?
This bolt-on Q-Line breaker is designed specifically for use in GE A-Series panelboards. It requires a direct bolt-on connection to the panel bus.
What does the ST1 suffix indicate on the THQD32225ST1 catalog number?
The ST1 suffix means this breaker includes a factory-installed 120V AC shunt trip accessory. This allows the breaker to be tripped remotely by applying a 120V control signal, which is commonly used for emergency stop or fire alarm integration.
What wire sizes are accepted by the line and load lugs on this 225A breaker?
The factory-installed lugs accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil. Ensure proper torque specifications are followed during installation as labeled directly on the breaker.
Is the thermal magnetic trip unit on the THQD32225ST1 adjustable?
No, this breaker features a non-interchangeable trip unit with fixed thermal and fixed magnetic settings for long-time and instantaneous (LI) protection.
Can the THQD32225ST1 be used in systems requiring a 10kAIC or 14kAIC rating?
Yes, because it has a maximum interrupting rating of 22kA at 240V AC, it can be safely applied in systems with lower available fault currents, such as 10kA or 14kA, provided all other system requirements are met.
Can I install the THQD32225ST1 in a standard load center that uses plug-in breakers?
No, this is a bolt-on breaker designed for commercial panelboards like the GE A-Series. It will not fit in standard residential load centers that require plug-in (THQL) or half-inch (THQP) breakers.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 9 reviews.
- JRJeffrey R.Verified BuyerReviewingABB / General Electric THQD32200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/29/26200A 3 Pole breaker
Breaker was in good shape and in good working order.
- APAlex P.Verified BuyerReviewingABB / General Electric THQD32200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/4/26Great Service
Provided exactly what I needed
- RDRob D.Verified BuyerReviewingABB / General Electric THQD32225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/10/26Happy Customer
Sean assisted us on this difficult order, and got it all correct. The price was good and the order received within 5 days on a tricky order! Thank you, Sean!
- RGRonald G.Verified BuyerReviewingABB / General Electric THQD32225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/25Breaker purchase
The breaker I purchased was in great condition, delivered quickly. This kind of service allows me to make people happy. That’s the goal!
- GMGloria M.ReviewingABB / General Electric THQD32150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/29/23Exactly what I needed and
Exactly what I needed and showed up quick