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Square D QO315SWN Miniature Circuit Breaker
- 15A
- 3 Pole
- Plug-On
Square D
QO315SWN
Miniature Circuit Breaker
Brand
Square D
SKU
QO315SWN
Quantity
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Square D QO315SWN - 15A 3 Pole Miniature Circuit Breaker
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Description
Built for specialized commercial applications, the Square D QO315SWN is a 15A, three-pole miniature circuit breaker featuring a switch neutral design. This configuration ensures the neutral conductor is disconnected simultaneously with the ungrounded phases, providing enhanced safety during maintenance or fault conditions. The unit mounts into standard Square D QO load centers and NQ panelboards.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO315SWN |
| Series | QO |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | QO Load Centers, NQ Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| 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 | Padlock Attachment, Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Switch Neutral, HACR Rated |
| Special Features | Switching Neutral |
Product FAQs
5 answersWhich load centers and panelboards are compatible with the QO315SWN circuit breaker?
This plug-on circuit breaker is designed for use in Square D QO load centers and NQ panelboards. It requires three pole spaces for installation.
What is the purpose of the switch neutral feature on the QO315SWN?
The switch neutral design ensures the neutral conductor is disconnected simultaneously with the ungrounded phases. This provides enhanced safety during maintenance or fault conditions in specialized commercial applications.
What applications typically require a switch neutral circuit breaker like the QO315SWN?
Switch neutral breakers are commonly used in specialized commercial applications, such as fuel dispensing facilities, to comply with NEC requirements (like NEC 514.11) that mandate disconnecting the neutral conductor simultaneously with the ungrounded phases.
Can the QO315SWN be installed in a Square D Homeline panel?
No. QO series breakers are not interchangeable with Homeline breakers. The QO315SWN is only compatible with QO load centers and NQ panelboards.
How many panel spaces does the QO315SWN require?
As a three-pole breaker, it requires three standard pole spaces in a compatible QO or NQ panel.
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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 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