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Square D QOB225 Miniature Circuit Breaker
- 25A
- 2 Pole
- Bolt-On
Square D
QOB225
Miniature Circuit Breaker
Brand
Square D
SKU
QOB225
Quantity
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Square D QOB225 - 25A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Square D QOB225 - 25A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB225 |
| Series | QOB |
| Amperage | 25A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Square D NQ Panelboards, Square D NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, RoHS Compliant |
Sold out
Quantity
Square D QOB225 - 25A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB225-R |
| Series | QOB |
| Amperage | 25A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Square D NQ Panelboards, Square D NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, RoHS Compliant |
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Description
Part of the QO family, the Square D QOB225 is a 2-pole, 25-amp miniature circuit breaker built for commercial and industrial applications. It utilizes proven thermal-magnetic technology to deliver consistent Long-Time and Instantaneous (LI) protection. This unit features a secure bolt-on mounting style, designed to mount into Square D NQ and NQOD panelboards. Rated for 10kAIC at 120/240VAC, it includes Square D's signature Visi-Trip indicator for rapid fault identification and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB225 |
| Series | QOB |
| Amperage | 25A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Square D NQ Panelboards, Square D NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, RoHS Compliant |
Product FAQs
7 answersWhich panelboards are compatible with the QOB225 breaker?
This bolt-on breaker is designed specifically for Square D NQ and NQOD panelboards. It cannot be installed in standard QO residential load centers, which require plug-on breakers.
Is the QOB225 circuit breaker HACR rated?
Yes, this 25 amp breaker is HACR rated. This means it is certified for safely supplying power to heating, air conditioning, and refrigeration equipment.
Is there a 22kAIC equivalent for the standard 10kAIC QOB225?
Yes. If your system requires a higher interrupting capacity, you can specify the QOB225VH. It provides a 22kAIC rating while maintaining the same physical dimensions and panel compatibility as the standard model.
How does the Visi-Trip indicator work on this breaker?
When the breaker trips due to an overcurrent or short circuit, the handle drops to a middle position and a highly visible red flag appears in a window on the breaker face. This allows personnel to rapidly identify the faulted circuit inside a crowded panelboard.
Can the QOB225 be used in direct current systems?
Yes, this thermal magnetic breaker is suitable for specific DC applications. It carries a DC interrupting rating of 5kA at 48VDC in addition to its standard alternating current ratings.
What is the advantage of the bolt-on connection?
Bolt-on breakers mechanically fasten directly to the panelboard busbar rather than clipping on. This provides a highly secure, vibration-resistant electrical connection that is typically required in commercial and industrial environments.
What type of trip protection does the QOB225 provide?
This breaker utilizes a fixed thermal magnetic trip unit to deliver LI protection. The long-time function guards against sustained overloads, while the instantaneous function trips the breaker immediately during severe short circuits.
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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.
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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