ABB / General ElectricTHQB32030ST1
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ABB / General Electric THQB32030 Miniature Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
ABB / General Electric
THQB32030
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB32030
Quantity
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ABB / General Electric THQB32030 - 30A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Quantity
ABB / General Electric THQB32030 - 30A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB32030 |
| Series | THQB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Sold out
Quantity
ABB / General Electric THQB32030 - 30A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB32030-R |
| Series | THQB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
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Description
Built for robust electrical distribution, this 30A miniature circuit breaker provides essential overcurrent and short-circuit protection. The three-pole commercial device utilizes a quick-make, quick-break mechanism to ensure reliable operation under load. Installation is straightforward with a bolt-on mounting style designed specifically for GE A-Series panelboards and AQ lighting panels. This HACR-rated unit delivers a 10kAIC interrupting capacity at 240VAC with a common trip function.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQB32030-R |
| Series | THQB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Product FAQs
9 answersCan I install this bolt-on breaker in a residential plug-on load center?
No. The THQB32030 features a bolt-on mounting style designed exclusively for commercial GE A-Series panelboards and AQ lighting panels. It will not fit in load centers that require THQL plug-on circuit breakers.
Can I use this 30A THQB breaker with aluminum wiring?
Yes. The built-in box lugs on the THQB32030 are dual-rated for both copper and aluminum conductors. The terminals accept 14 to 8 AWG copper wire or 12 to 8 AWG aluminum wire.
Are there line and load restrictions when installing this breaker?
No. The THQB32030 is suitable for reverse feed applications. When back-fed as a main breaker, National Electrical Code (NEC) guidelines require an approved breaker hold-down kit.
Does this bolt-on breaker require a separate mounting bracket?
No. The THQB32030 includes the integrated mounting clip and bolt-on terminal connections required to secure it directly to the panelboard bus. No external bracket kit is needed.
Is there any difference between the ABB THQB32030 and the General Electric THQB32030?
No. ABB completed the acquisition of GE Industrial Solutions in 2018. The circuit breakers are identical in form, fit, function, and UL listing, but may carry either the GE or ABB logo depending on the manufacturing date.
Is there a direct replacement available with a higher interrupting rating?
Yes. If your panel requires more than the 10kAIC provided by the THQB32030, the THHQB32030 is the direct, high-interrupting alternative. It offers a 22kAIC rating at 240VAC while maintaining the exact same bolt-on footprint.
Is this 30A breaker suitable for HVAC motor loads?
Yes. The THQB32030 is UL listed as Heating, Air Conditioning, and Refrigeration (HACR) rated, making it fully compliant for protecting motor loads in commercial HVAC systems.
Does this breaker carry a Switching Duty (SWD) or High-Intensity Discharge (HID) rating?
No. Under standard UL 489 testing, SWD and HID ratings are typically restricted to 15A and 20A circuit breakers for lighting circuits. This 30A breaker does not carry those specific designations.
How does the trip mechanism function during an electrical fault?
The THQB32030 utilizes a non-interchangeable, thermal-magnetic trip unit with fixed Long-Time and Instantaneous functions. The thermal element safely trips the breaker during sustained overloads, while the magnetic element opens the circuit instantly during a short-circuit event.
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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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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.