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Square D QOB130-1021 QOB1301021 - 30A 1 Pole Miniature Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
Square D
QOB130-1021
QOB1301021 - 30A 1 Pole Miniature Circuit Breaker
Brand
Square D
SKU
QOB130-1021
Quantity
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Square D QOB1301021 - 30A 1 Pole Miniature Circuit Breaker
New
Quantity
Sold out
Quantity
Square D QOB1301021 - 30A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB1301021 |
| Series | QOB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included, Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Sold out
Quantity
Square D QOB1301021 - 30A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOB1301021-R |
| Series | QOB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included, Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Engineered for commercial and industrial applications, this 30A bolt-on breaker includes a factory-installed shunt trip for remote disconnects. It installs securely into Square D NQ and NQOD panelboards, providing reliable thermal-magnetic protection. Featuring the signature Visi-Trip indicator for quick fault identification, it delivers a 10kA interrupting rating at 120/240VAC. This specific configuration is frequently replaced by the updated QOB1301021 model in modern installations.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB1301021 |
| Series | QOB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included, Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489, HACR |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhich panelboards accept the QOB1301021 circuit breaker?
This bolt-on breaker is specifically designed for Square D NQ and NQOD series panelboards. It cannot be used in standard QO residential load centers, which require plug-on mounting.
What function does the 1021 suffix provide on this breaker?
The 1021 suffix indicates a factory-installed shunt trip accessory. This allows the breaker to be opened remotely via a 120V to 240V AC control signal, which is commonly used for emergency stops or remote disconnect applications.
Is the QOB1301021 rated for direct current (DC) applications?
Yes, in addition to its 120/240V AC rating, this breaker is rated for 48V DC systems, providing a 5kA interrupting capacity for DC power applications.
How can I visually identify if the QOB1301021 has tripped?
This breaker features the Square D Visi-Trip indicator. When a fault occurs and the breaker trips, a bright red flag appears in the indicator window, making it easy to locate the tripped circuit inside a crowded panelboard.
What type of wire connections does this breaker support?
The breaker uses pressure plate terminals that accommodate 14 AWG to 8 AWG wire. The terminals are rated for both aluminum and copper conductors.
How is the QOB1301021 secured inside the panelboard?
It utilizes a bolt-on mounting style. The breaker physically bolts directly to the panelboard busbar, ensuring a secure and reliable connection that resists vibration in commercial and industrial environments.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 206 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.
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Rating
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.