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Square D QO250GFI GFCI Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Square D
QO250GFI
GFCI Miniature Circuit Breaker
Brand
Square D
SKU
QO250GFI
Quantity
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Square D QO250GFI - 50A GFCI Miniature Circuit Breaker
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Description
Providing essential 6mA Class A ground fault protection, the Square D QO250GFI is a 50A, 2-pole breaker designed for residential and commercial electrical systems. It is commonly used for hot tubs, pools, and other wet locations requiring strict NEC safety compliance. This unit mounts seamlessly into QO load centers, NQ, and NQOD panelboards via a standard plug-on connection. It features a 10 kAIC interrupting rating at 120/240VAC, a pigtail neutral, and the signature Visi-Trip visual indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO250GFI |
| Series | QO |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 12-4 AWG (Al), 14-6 AWG (Cu) |
| 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 | 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 |
Product FAQs
7 answersDoes this breaker require a Plug-On Neutral (PoN) panel?
No. The QO250GFI features a pigtail neutral, meaning it can be installed in both traditional and Plug-On Neutral QO load centers. The white pigtail wire must be routed and terminated directly at the panel's neutral bar.
Do I need to connect the neutral pigtail if my 240V load does not use a neutral wire?
Yes. The white pigtail must be connected to the panel neutral bar to power the breaker's internal circuitry. Without this connection, the ground-fault detection and the test button will not function, even if the 240V load itself is strictly two-wire plus ground.
What is the ground-fault trip threshold for the QO250GFI?
This is a Class A Ground-Fault Circuit Interrupter (GFCI) designed for personnel protection. It is calibrated to trip when a ground-fault current of 6 mA (milliamperes) or higher is detected.
What is the difference between the QO250GFI and the QO250EPD?
The QO250GFI is a Class A GFCI with a 6 mA trip threshold meant for personnel safety in wet locations like spas or hot tubs. The QO250EPD is an Equipment Protection Device (Class B) with a 30 mA trip threshold, typically used for heat trace or snow melt systems to prevent nuisance tripping.
Can I install the QO250GFI in a Homeline load center?
No. Square D QO and Homeline breakers are not interchangeable. QO breakers have a 3/4-inch width per pole, whereas Homeline breakers are 1-inch wide. This breaker only fits QO load centers, NQ, and NQOD panelboards.
How does the Visi-Trip indicator function on the QO250GFI?
When the breaker trips due to an overload, short circuit, or ground fault, the operating handle snaps to a center position and a high-visibility red indicator appears in the breaker window, making it easy to identify the tripped circuit.
How often should the GFCI function on the QO250GFI be tested?
Industry standards and the National Electrical Code (NEC) recommend testing GFCI circuit breakers on a monthly basis. Pressing the test button on the breaker simulates a fault; if functioning correctly, it will instantly trip.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 285 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 6/13/26
Customers say these circuit breakers arrive quickly and work as described. Fast shipping and competitive pricing are frequently mentioned, with many noting same-day or next-day delivery. Users appreciate the wide inventory, particularly for hard-to-find older-style models unavailable locally. The products function reliably and arrive in good condition. Most customers report straightforward ordering and positive interactions. However, some experienced delivery delays or received incorrect items requiring reordering. A few noted concerns about condition upon arrival or customer service responsiveness.
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Rating
285 reviews
- GCGerard C.Verified BuyerReviewingSquare D QO130GFI - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Great !
I could not find the breaker in hardwood stores. Superbreakers took car of it in a week.
- RHRoy H.Verified BuyerReviewingSquare D QO280 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Square D QO280 - 80A 2 Pole Miniature Circuit Breaker
Exactly as described
- KWKevin W.Verified BuyerReviewingSquare D QO120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Great Price
Brand spanking new!
- CEchristopher e.Verified BuyerReviewingSquare D QO115PDF - 15A Dual Function Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26My breakers
Had a hard time locating these breakers locally, when I did find 1 they wanted to charge me triple what superbreakers charged. Items delivered exactly when they said they would, were exactly what I ordered. Appreciated the ease of ordering, definitely my go to from this point on
- JCJerry C.Verified BuyerReviewingSquare D QO250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Great quality
No issues