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Square D QO230 Miniature Circuit Breaker
- 30A
- 2 Pole
- Plug-On
Square D
QO230
Miniature Circuit Breaker
Brand
Square D
SKU
QO230
Quantity
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Square D QO230 - 30A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Quantity
Square D QO230 - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QO230 |
| Series | QO |
| Amperage | 30A |
| 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 | Pressure Plate |
| For Use With | QO Load Centers, NQ Panelboards, 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 |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Sold out
Quantity
Square D QO230 - 30A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QO230-R |
| Series | QO |
| Amperage | 30A |
| 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 | Pressure Plate |
| For Use With | QO Load Centers, NQ Panelboards, 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 |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
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Description
Providing essential overcurrent protection for residential and commercial spaces, this 30A, 2-pole device operates at 120/240VAC. It utilizes proven thermal-magnetic trip technology to safeguard electrical circuits against overloads and short circuits. Compatibility includes a wide range of Square D infrastructure. The unit mounts seamlessly into QO load centers, NQ panelboards, and NQOD enclosures, accepting 14-8 AWG wire sizes via pressure plate terminals.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO230-R |
| Series | QO |
| Amperage | 30A |
| 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 | Pressure Plate |
| For Use With | QO Load Centers, NQ Panelboards, 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 |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Product FAQs
6 answersCan I install the QO230 in a Square D Homeline load center?
No. Square D QO circuit breakers have a 3/4-inch format and are not interchangeable with Homeline breakers, which use a 1-inch format. The QO230 is only compatible with QO load centers, NQ panelboards, and NQOD panelboards.
Does this breaker work in a QOB bolt-on panelboard?
No. The QO230 is a plug-on breaker. If your commercial panelboard requires bolt-on connections to the bus, you will need to source the QOB230 equivalent.
What is required if I want to use the QO230 as a back-fed main breaker?
When installing the QO230 as a back-fed main breaker in a QO load center, electrical codes require a retaining bracket to secure it to the interior. You will need to install a retaining kit, such as the Square D PK2MB, to prevent the breaker from being accidentally removed from the bus.
Is the QO230 suitable for heating, air conditioning, and refrigeration equipment?
Yes, this breaker is HACR rated, making it suitable for use with dedicated HVAC and refrigeration motor loads that require this specific safety certification.
Can this miniature circuit breaker be used for DC voltage applications?
Yes, the QO230 is rated for DC applications up to 48VDC with an interrupting capacity of 5kA, in addition to its standard 120/240VAC ratings.
How can I easily identify if this breaker has tripped in the panel?
This breaker features the Square D Visi-Trip indicator. When the breaker trips due to an overload or short circuit, a highly visible red flag appears in the indicator window, allowing for fast identification of the faulted circuit without guessing.
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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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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.
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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