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Square D QOB220AS Miniature Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Square D
QOB220AS
Miniature Circuit Breaker
Brand
Square D
SKU
QOB220AS
Quantity
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Square D QOB220AS - 20A 2 Pole Miniature Circuit Breaker
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Description
Part of the specialized Powerlink series, the Square D QOB220AS delivers dependable 20A protection alongside automated control. This two-pole breaker features integrated remote switching capabilities, making it ideal for commercial lighting control. Installs into Square D Powerlink and NQ panelboards using a secure bolt-on connection. This legacy AS-series breaker is superseded by the QOB220PL model. Rated for 10kAIC at 120/240VAC, it includes the signature Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB220AS |
| Series | QOB |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Powerlink Panelboards, NQ 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 | Padlock Attachment |
|---|---|
| Accessories | Remote Switching Mechanism (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489, HACR, SWD |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Remote Switching Capability, Visual Trip Indicator |
| Special Features | Remotely Operated |
Product FAQs
8 answersWhat panelboards are compatible with the QOB220AS?
The QOB220AS is designed for use in Square D Powerlink lighting control panelboards and standard NQ or NQOD panelboards equipped with Powerlink AS control components.
What does the AS suffix mean on this breaker?
The AS suffix indicates that this is a Powerlink AS remote controlled circuit breaker. It features an internal motor mechanism that allows it to be switched on and off remotely when installed in a compatible Powerlink control system.
Can this breaker be used for high-frequency switching of lighting loads?
Yes, the QOB220AS is specifically designed for lighting control and energy management. Its internal contacts are rated for up to 200,000 load operations, allowing it to function as both a standard overcurrent protection device and a durable remote controlled switch.
Does the QOB220AS require individual control wiring to each breaker?
No, the QOB220AS connects directly to the Powerlink AS control bus strip installed in the panelboard. This modular design eliminates the need for individual control wires, separate interface cabinets, or external contactors.
Can I use the QOB220AS in a standard QO load center?
No, the QOB220AS is a bolt-on circuit breaker designed for commercial NQ, NQOD, and Powerlink panelboards. It will not fit in standard QO plug-on residential load centers.
Does the QOB220AS provide standard overcurrent protection when the remote system is offline?
Yes, the QOB220AS functions as a standard thermal magnetic circuit breaker. It provides reliable overload and short circuit protection regardless of the remote control system status.
Can the QOB220AS be manually operated?
Yes, the QOB220AS has a standard operating handle that allows for manual ON/OFF switching and resetting after a trip, just like a conventional circuit breaker.
Is the QOB220AS a direct replacement for standard QOB220 breakers?
While the QOB220AS shares the same 20 Amp, 2-pole, bolt-on form factor as a standard QOB220, it includes internal remote switching components for Powerlink systems. If you do not have a Powerlink control system, a standard QOB220 is the correct replacement.
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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.