Square D QOB360VH-1021 QOB360VH1021 - 60A 3 Pole Miniature Circuit Breaker
- 60A
- 3 Pole
- Bolt-On
Quantity
Square D QOB360VH1021 - 60A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Built to handle elevated fault currents, this 60A commercial circuit breaker integrates a 120/240VAC shunt trip for automated or remote circuit disconnection. The device fastens into Square D NQ and NQOD panelboards, utilizing a bolt-on mounting style that prevents loose connections in high-vibration environments. It delivers a 22kAIC rating at 240V while maintaining the standard Visi-Trip visual indicator for simplified maintenance and troubleshooting.Specifications
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 120VAC, 22kA @ 240VAC, 22kA @ 120/240VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 8-2 AWG (Al/Cu) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, High Interrupting Capacity |
Product FAQs
11 answersWhat does the "-1021" suffix indicate on the QOB360VH1021?
The -1021 suffix means this breaker includes a factory-installed shunt trip accessory. This allows the breaker to be tripped remotely using a 120/208/240V AC control signal.
Which panelboards accept the QOB360VH1021 circuit breaker?
This bolt-on breaker is designed for use in Square D NQ and legacy NQOD panelboards. It will not fit in standard QO load centers, which require plug-on breakers.
Can I use this QOB breaker in place of a standard QO breaker?
No. QOB breakers feature a bolt-on mounting design intended for commercial and industrial panelboards (like NQ or NQOD). Standard QO breakers use a plug-on design for residential load centers. They are not interchangeable.
How many panel spaces does the QOB360VH1021 require?
This breaker requires 4 panel spaces. The 3-pole breaker itself occupies 3 spaces, and the factory-installed shunt trip accessory requires 1 additional space.
What is the control voltage for the shunt trip on the QOB360VH1021?
The factory-installed shunt trip operates on a 120/208/240V AC control signal.
What does the "VH" in the QOB360VH1021 part number indicate?
The "VH" designates this as a high-interrupting circuit breaker with a 22kAIC rating at 120/240V AC. Standard QOB breakers without the VH designation typically have a 10kAIC rating.
What wire gauge is supported by the box lugs on the QOB360VH1021?
The terminals accept 8 AWG to 2 AWG aluminum or copper conductors.
Are the trip settings adjustable on the QOB360VH1021?
No. This breaker features a fixed thermal-magnetic trip unit with non-adjustable long-time and instantaneous trip functions.
Does the QOB360VH1021 feature a tripped circuit indicator?
Yes. It includes Square D's Visi-Trip indicator, which displays a highly visible red flag in the breaker window when it has tripped, making it easy to identify in a crowded panelboard.
Does the QOB360VH1021 provide ground fault or arc fault protection?
No. This is a standard thermal-magnetic breaker with long-time and instantaneous trip functions. It does not include GFCI (Ground Fault Circuit Interrupter) or AFCI (Arc Fault Circuit Interrupter) protection.
Is the QOB360VH1021 HACR rated?
Yes. This breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 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.