Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D QO250 Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Square D
QO250
Miniature Circuit Breaker
Brand
Square D
SKU
QO250
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D QO250 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Square D QO250 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QO250 |
| Series | QO |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Sold out
Quantity
Square D QO250 - 50A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QO250-R |
| Series | QO |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Similar Items
45A 2 Pole Miniature Circuit Breaker
60A 2 Pole Miniature Circuit Breaker
40A 2 Pole Miniature Circuit Breaker
Description
Built to handle heavier electrical loads, this 50-amp miniature breaker is frequently utilized for residential ranges, HVAC equipment, and subpanels. It fits seamlessly into Square D QO load centers and commercial NQ or NQOD panelboards. Featuring the signature Visi-Trip red indicator flag, users can quickly identify fault conditions without manually testing each switch in the enclosure.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO250 |
| Series | QO |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Product FAQs
6 answersHow many panel spaces does the QO250 breaker require?
This 2-pole breaker requires two standard 3/4-inch spaces in a QO load center or compatible panelboard, occupying a total physical width of 1.5 inches.
What is the recommended tightening torque for the box lug terminals?
The box lugs on the QO250 should be torqued to 44.3 lb-in (5 N.m) when using 8 AWG to 2 AWG copper or aluminum conductors.
Can I install the QO250 in a Square D Homeline panel?
No. QO series breakers utilize a 3/4-inch width per pole and will not physically fit in Homeline panels, which require 1-inch format HOM breakers. The QO250 is specifically designed for QO load centers, NQ panelboards, and NQOD panelboards.
Is the QO250 HACR rated?
Yes, this unit is HACR rated, making it compliant and suitable for group motor applications like heating, air conditioning, and refrigeration equipment.
Does the QO250 feature a tripped circuit indicator?
Yes, it is equipped with the Square D Visi-Trip indicator. When the breaker trips due to an overload or short circuit, a red flag appears in the indicator window for quick visual identification of the faulted circuit.
What is the difference between the QO250 and the QOB250?
The QO250 is a plug-on circuit breaker. The QOB250 is the bolt-on equivalent, which is utilized when panel specifications require a bolted connection to the bus bar.
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 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.
Search
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