Square D QOB230SWN Miniature Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Square D
QOB230SWN
Miniature Circuit Breaker
Brand
Square D
SKU
QOB230SWN
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D QOB230SWN - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
Similar Items
30A 2 Pole Miniature Circuit Breaker
30A 2 Pole Miniature Circuit Breaker
QOB230VH1021 - 30A 2 Pole Miniature Circuit Breaker
Description
Engineered to disconnect ungrounded and grounded conductors simultaneously, this 30-amp switch neutral component is essential for specialized applications like fuel dispensers. It operates on 120VAC systems while utilizing a two-pole footprint. The unit fastens securely into Square D NQ and legacy NQOD panelboards using a standard bolt-on configuration. Safety is enhanced by the inclusion of Visi-Trip technology, which displays a highly visible red indicator when a fault occurs.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB230SWN |
| Series | QOB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| 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), (2) 14-10 AWG (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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, Visual Trip Indicator |
| Special Features | Switching Neutral |
Product FAQs
6 answersWhat does the SWN designation mean on the QOB230SWN?
SWN stands for Switch Neutral. This breaker is designed to simultaneously disconnect both the ungrounded hot conductor and the grounded neutral conductor. This configuration is frequently required by the National Electrical Code for specialized equipment like fuel dispensers.
Can I install the QOB230SWN in a standard QO residential load center?
No. The QOB series utilizes a bolt-on mounting design intended specifically for commercial NQ and legacy NQOD panelboards. For a standard QO plug-on load center, you must use the plug-on equivalent, catalog number QO230SWN.
Why is this 2-pole breaker only rated for 120V AC?
Unlike standard 2-pole breakers that provide 240V across two hot legs, this Switch Neutral breaker uses its two poles to switch one 120V hot leg and the neutral wire at the same time. It is strictly for 120V circuits that require a switched neutral.
Does the QOB230SWN include a tripped circuit indicator?
Yes, it features Square D Visi-Trip technology. When the breaker trips due to an overcurrent or short circuit condition, a bright red indicator appears in the breaker window to help you quickly identify the faulted circuit in the panelboard.
How many wires can be terminated on the QOB230SWN pressure plates?
The pressure plate terminals can accept a single 14 to 8 AWG copper or aluminum conductor. Alternatively, they are rated to accept two 14 to 10 AWG copper wires under a single terminal.
What is the advantage of the bolt-on connection for this breaker?
The bolt-on design physically secures the breaker to the panelboard bus bar using a screw. This creates a highly secure, vibration-resistant electrical connection that is preferred in commercial and industrial environments to prevent arcing or loose connections over time.
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 206 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
206 reviews
- KHKristopher H.Verified BuyerReviewingSquare D QOB120GFI - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/28/26Great Price!
Great price. Fast delivery. My local electric distributor wanted double for the same breaker, so it was a no brainer to order this one. Ordered another one since with the same great service.
- 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.