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Square D QOU360-1021 QOU3601021 - 60A 3 Pole Miniature Circuit Breaker
- 60A
- 3 Pole
- Unit Mount
Square D
QOU360-1021
QOU3601021 - 60A 3 Pole Miniature Circuit Breaker
Brand
Square D
SKU
QOU360-1021
Quantity
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Square D QOU3601021 - 60A 3 Pole Miniature Circuit Breaker
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Description
The QOU360-1021 is a specialized miniature circuit breaker from Square D featuring a factory-installed 120/240V shunt trip for remote disconnect applications. Built for commercial environments, it delivers reliable thermal-magnetic protection with a 10kAIC rating at 240VAC. This versatile breaker utilizes a cable-in/cable-out box lug design, allowing it to be easily installed onto standard DIN rails or surface-mounted. It includes the Visi-Trip indicator for rapid fault identification.Specifications
| Brand | Square D |
|---|---|
| Series | QOU |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 120/240VAC, 48VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QOU |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Control Panels, Enclosures |
| Wire Gauge | 14-2 AWG (Al/Cu) |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Mounting Feet, Padlock Attachment, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, HACR Rated |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhat does the 1021 suffix indicate on the QOU360-1021 circuit breaker?
The 1021 suffix means the breaker comes with a factory-installed shunt trip rated for 120, 208, or 240 VAC, allowing for remote tripping of the circuit.
How many pole spaces does the QOU360-1021 occupy?
Although it is a 3-pole breaker, the factory-installed shunt trip adds an additional pole space, meaning it requires four total pole spaces for installation.
What wire sizes are accepted by the shunt trip terminals?
The shunt trip terminals accept two 14 AWG to 12 AWG copper wires. The hot and neutral wires can be connected to either terminal.
Can a shunt trip be added to a standard QOU breaker in the field?
No. Shunt trips for the QOU series must be factory-installed. If a breaker is ordered without a shunt trip suffix like 1021, one cannot be added in the field.
How does the Visi-Trip indicator function on this breaker?
The Visi-Trip indicator provides a highly visible red flag that appears in a window on the breaker case when it trips due to an overcurrent or short circuit, allowing for rapid fault identification.
What type of protection does the LI trip function provide?
The thermal-magnetic mechanism provides Long-Time (L) protection against sustained overloads and Instantaneous (I) protection to quickly clear severe short circuits.
What does the feed-thru connection type mean for this breaker?
The feed-thru design means the breaker features box lugs on both the line and load sides. This allows for straightforward cable-in and cable-out wiring without requiring a specialized busbar connection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 106 reviews.
Reviews Summary
Generated by AI from 99 most recent customer reviews
Last updated 5/14/26
Customers say these circuit breakers function properly and arrive quickly. Many reviews highlight fast shipping, competitive pricing, and reliable product condition upon arrival. Users appreciate the wide selection, including hard-to-find models, and note the breakers work as expected for various applications. Common feedback addresses quick order processing and easy website navigation. Most customers report satisfaction with value and delivery speed, with many indicating they will purchase again.
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Rating
106 reviews
- HLHOMETIGO L.Verified BuyerReviewingSquare D QOU260 - 60A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/7/26Good thing
i recommend this for you
- RGRobert G.Verified BuyerReviewingSquare D QOU340 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/3/26Circuit breakers
I appreciate the fact that you had these in stock. my Square D distributor does not seem to stock these anymore and it takes a couple weeks to get. your pricing is inline with theirs.
- THTiffany H.Verified BuyerReviewingSquare D QOU115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/28/26Will use Super Breakers again
Arrived in a timely manner. Exactly what we needed for a job.
- CSCary S.Verified BuyerReviewingSquare D QOU250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/26Just what I ordered
Just what I needed for dock pedestal
- MHMark H.Verified BuyerReviewingSquare D QOU250VH - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Square D QOU250VH - 50A 2 Pole Miniature Circuit Breaker
Was just what I expected!