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Square D QO130-1021 QO1301021 - 30A 1 Pole Miniature Circuit Breaker
- 30A
- 1 Pole
- Plug-On
Square D
QO130-1021
QO1301021 - 30A 1 Pole Miniature Circuit Breaker
Brand
Square D
SKU
QO130-1021
Quantity
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Square D QO1301021 - 30A 1 Pole Miniature Circuit Breaker
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30A 1 Pole Miniature Circuit Breaker
Description
Integrating remote shutdown capabilities, this 30A single-pole device comes with a factory-installed 120/240V AC shunt trip mechanism. It installs securely into Square D QO load centers, NQ, and legacy NQOD panelboards used in commercial environments. Beyond its automated tripping function, the unit retains standard thermal-magnetic protection and the signature Visi-Trip flag for rapid diagnostics.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO130-1021 |
| Series | QO |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, 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 | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, RoHS, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated |
Product FAQs
8 answersWhat does the -1021 suffix indicate on the QO130-1021 circuit breaker?
The -1021 suffix indicates that this breaker includes a factory-installed 120/208/240V AC shunt trip accessory. This allows the breaker to be tripped remotely via a control circuit.
How many panel spaces does the QO130-1021 require?
Because it includes a factory-installed shunt trip accessory, this 1-pole breaker requires two standard 3/4-inch spaces in your panelboard.
Which panelboards and load centers accept the QO130-1021?
This plug-on breaker is compatible with Square D QO load centers, NQ panelboards, and legacy NQOD panelboards. It will not fit Homeline or I-Line panels.
What wire sizes and materials are supported by the terminals on this breaker?
The pressure plate terminals accept 14 AWG to 8 AWG conductors and are rated for both copper and aluminum (Cu/Al) wiring.
How does the thermal-magnetic trip mechanism operate on this breaker?
The thermal-magnetic mechanism provides dual protection. The thermal element offers long-time protection against sustained overloads, while the magnetic element provides instantaneous tripping during short circuits.
Does the QO130-1021 include a Visi-Trip indicator?
Yes, it features the standard Square D Visi-Trip indicator, which displays a red flag in the window when the breaker has tripped, allowing for rapid diagnostics in the panel.
Is the QO130-1021 a bolt-on or plug-on breaker?
This is a plug-on miniature circuit breaker. If your panelboard requires a bolt-on connection, you will need the equivalent QOB series breaker.
Can the QO130-1021 be used in DC applications?
Yes, in addition to its 120/240V AC rating, this breaker is rated for 48V DC applications with an interrupting capacity of 5kAIC.
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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