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Square D QO330VH Miniature Circuit Breaker
- 30A
- 3 Pole
- Plug-On
Square D
QO330VH
Miniature Circuit Breaker
Brand
Square D
SKU
QO330VH
Quantity
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Square D QO330VH - 30A 3 Pole Miniature Circuit Breaker
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Description
Delivering enhanced 22kAIC fault protection, this three-pole 30A miniature breaker serves commercial and industrial distribution needs. The unit installs into Square D QO load centers, NQ panelboards, and Speed-D switchboards using a standard plug-on configuration. It features the signature Visi-Trip indicator for rapid fault identification and carries an HACR rating for specialized HVAC applications.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO330VH |
| Series | QO |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 22kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | QO Load Centers, NQ Panelboards, Speed-D Switchboards |
| 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 | Padlock Attachment, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, High Interrupting Capacity, Common Trip |
Product FAQs
6 answersCan I install the QO330VH in a Square D Homeline panel?
No. QO series breakers are not interchangeable with Homeline panels. The QO330VH is designed exclusively for Square D QO load centers, NQ panelboards, and Speed-D switchboards.
What does the VH stand for in the QO330VH catalog number?
The VH suffix designates a high interrupting rating of 22kAIC at 240V. Standard QO breakers without the VH suffix typically have a 10kAIC rating.
How many panel spaces does this 3-pole breaker require?
The QO330VH requires three standard 0.75-inch spaces in a compatible QO or NQ panel, taking up a total width of 2.25 inches.
What are the wire size and torque specifications for the QO330VH?
The pressure plate terminals accept 14 AWG to 8 AWG copper or aluminum wire. The recommended tightening torque for the terminals is 40.7 lb-in (4.6 N.m).
Is the QO330VH suitable for use with HVAC equipment?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires HACR rated circuit protection.
Can I use the QO330VH to replace a standard QO330 breaker?
Yes, the QO330VH can replace a standard QO330. It provides the same 30A protection and physical footprint but offers an upgraded 22kAIC interrupt rating compared to the standard 10kAIC rating.
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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