Square D QO220AS Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Square D
QO220AS
Miniature Circuit Breaker
Brand
Square D
SKU
QO220AS
Quantity
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Square D QO220AS - 20A 2 Pole Miniature Circuit Breaker
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Description
Designed for automated lighting and control applications, the QO220AS is a 2-pole, 20A plug-on circuit breaker from Square D. It features Powerlink remote switching technology, allowing facility managers to control circuits remotely. This thermal-magnetic breaker installs into Powerlink AS panelboards and delivers a 10kA interrupting capacity at 120/240VAC. Note that this specific model has been replaced by the QO220PL, making it an exact match for maintaining existing automated panels.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO220AS |
| Series | QO |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Powerlink AS 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Powerlink AS Remote Control Mechanism |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Common Trip, Powerlink |
| Special Features | Remotely Operated |
Product FAQs
8 answersWhat panelboards are compatible with the Square D QO220AS?
The QO220AS is designed specifically for Square D Powerlink AS systems, which are typically installed in NQOD and NEHB panelboards. Unlike standard QO breakers, it features an integrated 24VDC remote operator that interfaces with the Powerlink control bus for automated lighting and energy management.
Can I install the QO220AS in a standard residential QO load center?
No. Although it uses the QO plug-on frame, the QO220AS is a remotely operated breaker built for commercial Powerlink AS systems. It requires a specialized control bus to utilize its remote switching capabilities and will not function properly in standard residential load centers.
How does the remote switching function work on the QO220AS?
The breaker features a built-in 24VDC operator that connects to the Powerlink AS control bus. This allows the breaker to be switched on and off remotely via a centralized controller, building management system, or time-of-day schedule without affecting the thermal-magnetic overcurrent protection.
What type of wiring is required for the QO220AS terminals?
The pressure plate terminals are rated for 14 AWG to 8 AWG wire and are compatible with both aluminum and copper conductors. Ensure proper torque specifications are followed during installation to maintain a secure connection.
What does the LI trip function on the QO220AS indicate?
The LI designation means this thermal-magnetic breaker provides Long-Time overload protection and Instantaneous short-circuit protection. This is the standard trip curve for general power and lighting circuits.
Does the remote switching capability affect the safety trip functions?
No. The remote switching mechanism operates independently of the thermal-magnetic trip unit. If an overload or short circuit occurs, the breaker will trip and interrupt power regardless of the remote control status.
How can I tell if the QO220AS has tripped due to a fault?
The QO220AS features the Square D Visi-Trip indicator. When the breaker trips due to an overcurrent or short circuit, a highly visible red indicator appears in the breaker window, allowing you to quickly distinguish a tripped breaker from one that was simply turned off remotely.
What is the difference between the QO220AS and the QOB220AS?
The QO220AS features a plug-on mounting design, while the QOB220AS is the bolt-on equivalent. Both are 20A, 2-pole remotely operated breakers for Powerlink AS systems, but you must select the version that matches your specific panelboard mounting requirements.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 285 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 6/13/26
Customers say these circuit breakers arrive quickly and work as described. Fast shipping and competitive pricing are frequently mentioned, with many noting same-day or next-day delivery. Users appreciate the wide inventory, particularly for hard-to-find older-style models unavailable locally. The products function reliably and arrive in good condition. Most customers report straightforward ordering and positive interactions. However, some experienced delivery delays or received incorrect items requiring reordering. A few noted concerns about condition upon arrival or customer service responsiveness.
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Rating
285 reviews
- GCGerard C.Verified BuyerReviewingSquare D QO130GFI - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Great !
I could not find the breaker in hardwood stores. Superbreakers took car of it in a week.
- RHRoy H.Verified BuyerReviewingSquare D QO280 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Square D QO280 - 80A 2 Pole Miniature Circuit Breaker
Exactly as described
- KWKevin W.Verified BuyerReviewingSquare D QO120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Great Price
Brand spanking new!
- CEchristopher e.Verified BuyerReviewingSquare D QO115PDF - 15A Dual Function Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26My breakers
Had a hard time locating these breakers locally, when I did find 1 they wanted to charge me triple what superbreakers charged. Items delivered exactly when they said they would, were exactly what I ordered. Appreciated the ease of ordering, definitely my go to from this point on
- JCJerry C.Verified BuyerReviewingSquare D QO250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Great quality
No issues