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Square D QOB220-1201 QOB2201201 - 20A 2 Pole Miniature Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Square D
QOB220-1201
QOB2201201 - 20A 2 Pole Miniature Circuit Breaker
Brand
Square D
SKU
QOB220-1201
Quantity
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Square D QOB2201201 - 20A 2 Pole Miniature Circuit Breaker
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Description
Part of the QO family, the Square D QOB220-1201 delivers thermal-magnetic protection for commercial and industrial electrical systems. This 2-pole, 20A miniature circuit breaker features a factory-installed 1B auxiliary switch to indicate the open or closed status of the contacts. It mounts into NQ and NQOD panelboards using a secure bolt-on connection. Rated for 10 kAIC at 120/240VAC, it includes Visi-Trip technology for quick identification of tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB220-1201 |
| Series | QOB |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| 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 | Auxiliary Switch (1B) |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
9 answersWhat panelboards are compatible with the QOB220-1201?
This bolt-on circuit breaker is designed exclusively for Square D NQ and NQOD panelboards. It cannot be used in QO load centers, which require plug-on breakers.
What does the -1201 suffix indicate on this QOB breaker?
The -1201 suffix signifies that the breaker includes a factory-installed 1B auxiliary switch. This provides one normally closed (NC) contact that actuates when the breaker opens or closes, typically used for signaling or control circuits.
What is the difference between the QOB220 and the QOB220-1201?
Both are 20A, 2-pole bolt-on breakers for NQ and NQOD panels. The QOB220-1201 includes a factory-installed 1B auxiliary switch for control circuits, whereas the standard QOB220 does not.
How does the QOB220-1201 mount into the panelboard?
It features a bolt-on connection, securing directly to the panelboard bus bar with a screw. This provides a secure, vibration-resistant connection suitable for commercial and industrial applications.
Does the auxiliary switch on the QOB220-1201 require separate wiring?
Yes, the factory-installed 1B auxiliary switch has its own wire leads that must be integrated into your control or signaling circuit to monitor the open or closed status of the breaker contacts.
Is the QOB220-1201 HACR rated?
Yes, standard QOB circuit breakers are HACR rated. They are approved for use with heating, air conditioning, and refrigeration equipment that requires HACR-type overcurrent protection.
Does this breaker include Visi-Trip technology?
Yes, it features the Square D Visi-Trip indicator. When the breaker trips, a highly visible red indicator appears in the window, allowing for quick identification of the tripped circuit in a crowded panel.
Can I install the QOB220-1201 in a Homeline load center?
No, Square D QOB bolt-on breakers are not compatible with Homeline load centers. Homeline panels require HOM series plug-on breakers.
Can the QOB220-1201 be used in DC control circuits?
Yes, this breaker is rated for use in DC systems up to 48VDC, with an interrupting capacity of 5kA. This makes it suitable for certain industrial control and battery applications.
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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.