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Square D QOB250GF GFCI Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Square D
QOB250GF
GFCI Miniature Circuit Breaker
Brand
Square D
SKU
QOB250GF
Quantity
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Square D QOB250GF - 50A GFCI Miniature Circuit Breaker
New
Quantity
Quantity
Square D QOB250GF - 50A GFCI Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB250GF |
| Series | QOB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 AWG (Al), 6 AWG (Cu) |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail (Neutral) |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Quick-Make/Quick-Break, Trip-Free Mechanism |
Sold out
Quantity
Square D QOB250GF - 50A GFCI Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB250GF-R |
| Series | QOB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 AWG (Al), 6 AWG (Cu) |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail (Neutral) |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Quick-Make/Quick-Break, Trip-Free Mechanism |
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Description
Rated 10 kAIC at 120/240V, this 50A miniature breaker provides essential ground fault protection for commercial and industrial circuits. It mounts into Square D NQ and NQOD panelboards via a sturdy bolt-on connection. While this specific model has been replaced by the QOB250GFI, it features the signature Visi-Trip indicator, a pigtail neutral, and HACR rating for versatile application use.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB250GF |
| Series | QOB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 AWG (Al), 6 AWG (Cu) |
| Min Wire | 12 AWG (Al), 14 AWG (Cu) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail (Neutral) |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the QOB250GF circuit breaker?
This bolt-on breaker is designed specifically for use in Square D NQ and NQOD panelboards. It will not fit standard QO load centers, which require plug-on breakers.
Is there a plug-on equivalent for the QOB250GF?
Yes, the QO250GF is the plug-on equivalent designed for standard Square D QO load centers.
Has the QOB250GF been replaced by a newer model?
Yes, the QOB250GF has been superseded by the QOB250GFI. The newer model offers the same 50A rating and bolt-on compatibility for NQ and NQOD panels.
What level of ground fault protection does the QOB250GF provide?
This breaker provides Class A ground fault protection, which trips when a ground fault of 6 mA or higher is detected.
How is the neutral connected on the QOB250GF?
This breaker features a pigtail neutral wire that must be connected directly to the neutral bar in the panelboard to ensure proper ground fault protection.
Does the QOB250GF include a visual trip indicator?
Yes, it features the Square D Visi-Trip indicator, which provides a clear visual confirmation when the breaker has tripped.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.
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Rating
205 reviews
- BLBOOSTIX L.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/17/26QOB220
That's nice breakers!
- PHPaul H.Verified BuyerReviewingSquare D QOB330 - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/5/26Quick shipping and delivery
Shipped and delivered on time for installation at one of our projects. Thank you!
- RMRick M.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Project Mgr
Just what I needed.
- DHDoug H.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Square D QOB breakers
As always, our order arrived timely, and accurate. You can’t beat their prices that’s why we have used this company for years.
- RKRyan K.Verified BuyerReviewingSquare D QOB230VH - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26Awesome
Worked great