Free Shipping Over $99
Square D QOB125GFI GFCI Miniature Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
Square D
QOB125GFI
GFCI Miniature Circuit Breaker
Brand
Square D
SKU
QOB125GFI
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D QOB125GFI - 25A GFCI Miniature Circuit Breaker
New
Quantity
Similar Items
30A GFCI Miniature Circuit Breaker
30A GFCI Miniature Circuit Breaker
20A GFCI Miniature Circuit Breaker
Description
Built for commercial and industrial safety, the QOB125GFI is a 25A single-pole breaker offering Class A (6mA) ground fault protection. It operates at 120VAC with a 10 kAIC rating, ideal for areas requiring NEC-compliant GFCI coverage. This unit features a secure bolt-on mounting style engineered for Square D NQ and NQOD panelboards. It comes equipped with a pigtail neutral and accommodates 14-8 AWG copper wiring. The thermal-magnetic trip mechanism includes the Visi-Trip visual indicator.Specifications
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | NQ Panelboards, NQOD Panelboards |
| 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 | 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, HACR |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Product FAQs
6 answersWhat panelboards accept the QOB125GFI?
The QOB125GFI is a bolt-on breaker designed exclusively for Square D NQ and NQOD panelboards. It cannot be installed in standard QO load centers, which require plug-on breakers.
What is the plug-on equivalent of the QOB125GFI?
If you need this exact 25A GFCI breaker for a standard QO residential load center, you will need the plug-on version, catalog number QO125GFI. The QOB125GFI is strictly for bolt-on panelboards.
How do I wire the neutral connection on the QOB125GFI?
The circuit's load neutral wire must be connected directly to the breaker's load neutral terminal. Then, the breaker's coiled white pigtail wire must be routed and connected to the panelboard's neutral bus bar to ensure the ground fault detection operates correctly.
What level of ground fault protection does this breaker offer?
The QOB125GFI provides Class A ground fault protection. It is engineered to trip when it detects a ground fault current between 4 and 6 milliamperes (mA), which is the standard required to protect personnel from severe electrical shock.
How can I tell if the QOB125GFI has tripped?
This breaker includes the Square D Visi-Trip indicator. When the breaker trips due to an overload, short circuit, or ground fault, the handle moves to the center position and a bright red indicator appears in the window, making it easy to spot in a crowded panelboard.
Can I use the QOB125GFI for a 240V circuit?
No, the QOB125GFI is a 1-pole breaker rated for 120VAC only. If you need to protect a 240V circuit, you must use a 2-pole GFCI breaker, such as the QOB225GFI.
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 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.
Search
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