Square D QO220SWN1021 3 Pole Circuit Breaker
- 20
- 2 Pole
- Plug-On
Quantity
Square D QO220SWN1021 3 Pole Circuit Breaker
New
Quantity
Quantity
Square D QO220SWN1021 3 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QO220SWN-1021 |
| Series | QO |
| Amperage | 20 A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, 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 | Shunt Trip (120/208/240VAC) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, RoHS Compliant, Mercury Free |
| Special Features | Switching Neutral |
Quantity
Square D QO220SWN1021 3 Pole Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | QO |
| Amperage | 20 A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, 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 | Shunt Trip (120/208/240VAC) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, RoHS Compliant, Mercury Free |
| Special Features | Switching Neutral |
Description
Square D QO220SWN1021 2 Pole Circuit Breaker
The Square D QO220SWN1021 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 120VAC. It has an interrupting rating of 10kAIC at 240VAC. The QO220SWN1021 has a plug-in connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | QO |
| Amperage | 20 A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, 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 | Shunt Trip (120/208/240VAC) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, RoHS Compliant, Mercury Free |
| Special Features | Switching Neutral |
Product FAQs
7 answersWhich electrical panels are compatible with the QO220SWN1021 circuit breaker?
This plug-on breaker is designed exclusively for use in Square D QO load centers and NQ panelboards. It is not compatible with Homeline load centers or QOB bolt-on panelboards.
What does the SWN designation mean on this Square D breaker?
The SWN indicates that this is a switched neutral circuit breaker. It is designed to open both the ungrounded hot conductor and the grounded neutral conductor simultaneously when tripped or manually turned off.
What feature does the 1021 suffix add to the QO220SWN breaker?
The 1021 suffix indicates that this breaker includes a factory-installed shunt trip accessory. This allows the breaker to be tripped remotely using a 120V to 240V AC control signal, which is commonly used for emergency shutdowns.
How many panel spaces does the QO220SWN1021 require?
This unit requires three standard 3/4-inch spaces in a QO load center or NQ panelboard. The 2-pole switched neutral breaker occupies two spaces, and the factory-installed shunt trip accessory requires a third space.
Can I field-install or remove the shunt trip accessory on this breaker?
No, the shunt trip mechanism on the QO220SWN1021 is factory-installed and cannot be removed or modified in the field. If you do not need a remote tripping function, you should source the standard QO220SWN breaker instead.
When is a switched neutral circuit breaker typically required?
Switched neutral breakers are commonly used in applications like fuel dispensers, gas pumps, or specific medical equipment where electrical codes require all conductors, including the neutral, to be completely disconnected from the power source for safety.
What is the difference between the QO220SWN and the QO220SWN1021?
The QO220SWN is the standard switched neutral breaker, while the QO220SWN1021 includes a factory-installed shunt trip accessory for remote tripping capabilities.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 286 reviews.
- RBRobert B.Verified BuyerReviewingSquare D QO120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/5/26Square D Q0120-20A circuit breaker
This device was delivered on time as advertised and it was in excellent condition. The installation process was simple and straightforward, and the unit worked perfectly when connected to the electric circuit.
I am completely satisfied and will utilize this component resource for my future electrical needs.
- 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