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Square D QO2150VH Miniature Circuit Breaker
- 150A
- 2 Pole
- Plug-On
Square D
QO2150VH
Miniature Circuit Breaker
Brand
Square D
SKU
QO2150VH
Quantity
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Square D QO2150VH - 150A 2 Pole Miniature Circuit Breaker
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Description
Providing enhanced short-circuit protection, the QO2150VH is a 150A, two-pole miniature circuit breaker. It delivers reliable thermal-magnetic trip functions for 120/240VAC systems. This high-interrupting breaker mounts into Square D QO load centers and NQ panelboards. It features a plug-on design and requires four panel spaces for installation. Rated at 22 kAIC, it includes a Visi-Trip indicator to easily spot tripped circuits. The HACR-rated unit accepts 1 AWG to 300 kcmil wire.Specifications
| Brand | Square D |
|---|---|
| Series | QO |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards |
| Wire Gauge | 1 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, HACR, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, RoHS Compliant, Mercury Free |
Product FAQs
6 answersHow many panel spaces does the QO2150VH require?
The QO2150VH requires four panel spaces. Due to its 150A rating and physical size, it occupies more space than standard 2-pole QO branch breakers.
Can I install the QO2150VH in a 3-phase panel?
No. According to Square D specifications, this 150A breaker is not suitable for use in 3-phase panels. It must only be installed in single-phase panels rated for 150A or greater.
What is the tightening torque for the box lugs on the QO2150VH?
The box lugs require a tightening torque of 250.5 lb-in (28.3 N.m) when terminating the 1 AWG to 300 kcmil aluminum or copper conductors.
What does the VH suffix indicate in the QO2150VH catalog number?
The VH suffix stands for Very High interrupting rating. It indicates that the breaker has a 22 kAIC rating at 120/240VAC, whereas standard QO breakers without the suffix are typically rated at 10 kAIC.
Can the QO2150VH be used to series-rate downstream breakers?
Yes, it is UL Listed for use ahead of standard 10 kAIC QO branch breakers, including QO-GFI, QO-AFI, and QOT, to permit their application on systems with up to a 22 kA available fault current.
Can the QO2150VH be used as a main breaker?
Yes, it can be used as a back-fed main breaker in 150A single-phase QO load centers or NQ panelboards. When used as a back-fed main, a main breaker retaining kit must be installed to comply with NEC requirements.
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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