Square D QOB115VH1021 Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
Quantity
Square D QOB115VH1021 1 Pole Circuit Breaker
New
Quantity
Quantity
Square D QOB115VH1021 1 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB115VH-1021 |
| Series | QOB |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| 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 |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, SWD Rated, Mercury Free, RoHS Compliant |
Quantity
Square D QOB115VH1021 1 Pole Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| 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 |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, SWD Rated, Mercury Free, RoHS Compliant |
Description
Square D QOB115VH1021 1 Pole Circuit Breaker
The Square D QOB115VH1021 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 120/240VAC. It has an interrupting rating of 22kAIC at 120VAC. The QOB115VH1021 has a bolt-on connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| 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 |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, SWD Rated, Mercury Free, RoHS Compliant |
Product FAQs
6 answersWhich panelboards accept the QOB115VH1021 circuit breaker?
This bolt-on breaker is designed specifically for Square D NQ and NQOD panelboards. It cannot be installed in standard QO load centers, which require plug-on connections.
What does the 1021 suffix indicate on this Square D breaker?
The 1021 suffix signifies that the breaker comes with a factory-installed 120/240VAC shunt trip accessory. This allows the breaker to be tripped remotely via an external voltage signal.
How is the QOB115VH1021 secured to the panelboard busbar?
As a QOB series breaker, it uses a bolt-on connection rather than a plug-on design. It fastens directly to the busbar of NQ or NQOD panelboards using a built-in screw, ensuring a secure mechanical and electrical connection in commercial environments.
What does the VH designation mean in the QOB115VH1021 part number?
The VH indicates a high interrupting rating. This breaker provides 22kAIC at 120/240VAC, which is higher than the 10kAIC rating found on standard QOB breakers without the VH designation.
How is the shunt trip on this breaker typically utilized in electrical systems?
The factory-installed 120/240VAC shunt trip is commonly wired to emergency stop pushbuttons, fire alarm panels, or other control circuits. When the coil receives a voltage signal, it mechanically trips the breaker to safely disconnect power to the circuit.
Is the QOB115VH1021 rated for 15 amps or 20 amps?
This is a 15-amp circuit breaker. The 115 in the catalog number designates a 1-pole, 15-amp configuration.
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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