Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
ABB / General Electric THQB2150GFEP2 GFEP Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
ABB / General Electric
THQB2150GFEP2
GFEP Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
THQB2150GFEP2
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
ABB / General Electric THQB2150GFEP2 - 50A GFEP Miniature Circuit Breaker
New
Quantity
Similar Items
ABB / General ElectricTHQB2140GFEP
40A GFEP Miniature Circuit Breaker
ABB / General ElectricTHQB2140GFEP2
40A GFEP Miniature Circuit Breaker
ABB / General ElectricTHQB2130GFEP
30A GFEP Miniature Circuit Breaker
Description
Rated for 50A at 120/240V, this two-pole GFEP breaker is engineered to protect machinery and heat-tracing equipment from damaging low-level ground faults. Unlike personnel GFCIs, the 30mA trip threshold prevents nuisance tripping on industrial equipment while still safeguarding the hardware. It mounts securely into GE A-Series panelboards and AQ lighting panels using a standard bolt-on connection. Features include an internal common trip and a 10kAIC short-circuit rating.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | THQB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE A-Series Panelboards, GE AQ Lighting Panels |
| Wire Gauge | 8-3 AWG (Cu/Al) |
| Max Wire | 3 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFEP |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Ground Fault Equipment Protection Module |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Internal Common Trip, Quick-Make/Quick-Break |
Product FAQs
6 answersWhat panels are compatible with the THQB2150GFEP2 circuit breaker?
This bolt-on breaker is designed for use in ABB and GE A-Series panelboards, specifically Type AQ and AQC lighting panels.
Can I install this THQB breaker in a standard GE residential load center?
No. Standard GE residential load centers require THQL plug-on breakers. The THQB series utilizes a bolt-on mounting design meant strictly for commercial A-Series panelboards.
What is the difference between this GFEP breaker and a GFCI breaker?
A Ground Fault Equipment Protection (GFEP) breaker like this model trips at a 30mA threshold to protect heat tracing equipment and machinery from low-level faults. A standard Class A GFCI trips at a much lower 5mA threshold to protect personnel from electric shock.
How is the neutral connection handled during installation?
This breaker features a pigtail neutral wire. The pigtail must be securely landed on the neutral bus bar in your panelboard for the internal ground fault protection circuitry to function.
Will an ABB branded THQB2150GFEP2 fit in my older GE industrial panel?
Yes. Following ABB's acquisition of GE Industrial Solutions, ABB continues to manufacture the Q-Line series. The ABB branded breaker maintains the exact same dimensions, bolt-on connections, and catalog number, making it fully compatible with legacy GE panels.
Does this breaker protect against standard overloads as well as ground faults?
Yes. It utilizes a thermal magnetic trip mechanism to provide standard long-time overload and instantaneous short-circuit protection, operating alongside the ground fault detection.
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 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.
Search
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.