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Square D QO260-1021 QO2601021 - 60A 2 Pole Miniature Circuit Breaker
- 60A
- 2 Pole
- Plug-On
Square D
QO260-1021
QO2601021 - 60A 2 Pole Miniature Circuit Breaker
Brand
Square D
SKU
QO260-1021
Quantity
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Square D QO2601021 - 60A 2 Pole Miniature Circuit Breaker
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Description
Designed for commercial and industrial control systems, the QO260-1021 provides reliable 60-amp overcurrent protection with remote tripping capabilities. This two-pole miniature breaker features a factory-installed shunt trip, allowing the circuit to be opened from a remote location via a separate control voltage. The plug-on mounting style ensures quick installation into Square D QO load centers, NQ, and NQOD panelboards. It delivers a 10kA interrupting rating and includes Visi-Trip.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO2601021 |
| Series | QO |
| Amperage | 60A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Product FAQs
9 answersWhat does the -1021 suffix indicate on the QO260-1021 breaker?
The -1021 suffix means this breaker comes with a factory-installed shunt trip accessory. This allows the breaker to be opened from a remote location using a 120V to 240V AC control voltage.
How does the shunt trip function on the QO260-1021 operate?
The factory-installed shunt trip requires a separate external control voltage. When 120V, 208V, or 240V AC is applied to the shunt trip coil, it mechanically trips the breaker to open the circuit. This is commonly used for emergency shutdowns or remote control applications.
Can I install the QO260-1021 in a Square D Homeline panel?
No. QO series breakers have a specific plug-on mounting clip and a 3/4 inch per pole width that is not compatible with Homeline load centers. It is only designed for QO load centers, NQ panelboards, and NQOD panelboards.
Does this breaker include the Visi-Trip indicator?
Yes. It features the Square D Visi-Trip indicator, which displays a highly visible red flag in the window when the breaker trips due to an overcurrent or when activated by the shunt trip.
Can the QO260-1021 be used in low voltage DC control panels?
Yes. While primarily used for AC applications, this breaker is also UL listed for DC circuits up to 48V DC. It can safely interrupt up to 5kA of fault current in battery backups or DC control systems.
What type of wire is required for the QO260-1021 box lugs?
The box lugs are rated for both copper and aluminum conductors. Ensure you use the correct torque specifications and apply an oxide inhibitor if using aluminum wire between 8 AWG and 2 AWG.
Can I add a padlock attachment to the QO260-1021?
Yes, standard QO padlock attachments can be installed on the handle. This allows you to lock the breaker in the OFF position for safe maintenance and lockout tagout procedures.
Are QO and QOB breakers interchangeable?
No. While they share the same internal mechanisms and trip curves, the QO260-1021 is a plug-on breaker. QOB breakers are bolt-on and require a panelboard with bolt-on bus connections.
What does the LI trip function on this breaker indicate?
The LI designation means this thermal magnetic breaker provides Long-Time and Instantaneous protection. The thermal element responds to sustained overloads, while the magnetic element trips instantly during short circuits.
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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