Square D QOB230VH1021 Miniature Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Quantity
Square D QOB230VH1021 - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of the QO family, the Square D QOB230VH1021 is a 2-pole, 30A miniature circuit breaker built for commercial applications. It features a thermal-magnetic trip mechanism and a factory-installed 120-240VAC shunt trip for remote tripping. This bolt-on breaker installs into Square D NQ and NQOD panelboards. It accepts 14-8 AWG aluminum or copper wiring via pressure plate terminals, ensuring a secure connection. Delivering a high 22 kAIC rating at 120/240VAC, it provides robust protection.Specifications
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | 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 | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
8 answersWhat does the "1021" suffix mean on the QOB230VH1021?
The "1021" suffix indicates that this circuit breaker includes a factory-installed 120/208/240VAC shunt trip accessory, which allows the breaker to be tripped remotely.
What is the difference between QOB230VH and QOB230VH1021?
Both are 30A, 2-pole, 22kAIC bolt-on breakers, but the QOB230VH1021 includes a factory-installed 120/240VAC shunt trip for remote tripping capabilities.
Can I install the QOB230VH1021 in a standard QO load center?
No. The QOB230VH1021 is a bolt-on circuit breaker designed specifically for Square D NQ and NQOD panelboards. Standard residential QO load centers require plug-on breakers, not bolt-on.
What does the "VH" stand for in the QOB230VH1021 catalog number?
The "VH" designates this as a high-interrupting circuit breaker with a 22kAIC rating at 120/240VAC, compared to standard QOB breakers which typically have a 10kAIC rating.
How does the shunt trip on the QOB230VH1021 operate?
The factory-installed shunt trip requires an external voltage source of 120V to 240VAC. When voltage is applied to the shunt trip coil terminals, it mechanically trips the breaker to open the circuit.
Does the QOB230VH1021 feature a Visi-Trip indicator?
Yes, like most Square D QO and QOB breakers, it features a Visi-Trip indicator. When the breaker trips due to an overcurrent, short circuit, or a remote shunt trip command, a red indicator appears in the window to easily identify the tripped breaker.
Is the shunt trip on the QOB230VH1021 field-installable?
No, the 1021 shunt trip accessory is factory-installed. Square D QO and QOB miniature circuit breakers do not support field-installable internal accessories.
Is the QOB230VH1021 HACR rated?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific overcurrent protection rating.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
- 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.
- RKRyan K.Verified BuyerReviewingSquare D QOB230VH - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26Awesome
Worked great