Square D QO120HID Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Square D
QO120HID
Miniature Circuit Breaker
Brand
Square D
SKU
QO120HID
Quantity
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Square D QO120HID - 20A 1 Pole Miniature Circuit Breaker
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Description
Designed to handle the unique demands of High Intensity Discharge lighting, this 20A single-pole unit provides reliable thermal-magnetic protection. It features the signature Visi-Trip indicator for rapid fault identification in busy commercial environments. Installing seamlessly into standard QO load centers and NQ panelboards, it utilizes a pressure plate terminal for secure wire connections. Beyond standard overload protection, it carries SWD and HACR ratings for versatile application use.Specifications
| Brand | Square D |
|---|---|
| Series | QO |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, NQ 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, Auxiliary Switch, Alarm Switch |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489, HACR Rated, SWD Rated |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
| Construction Features | HID Rated, SWD Rated, HACR Rated, Visual Trip Indicator |
| Special Features | HID Rated |
Product FAQs
7 answersWhich panelboards and load centers accept the QO120HID breaker?
This plug-on breaker is compatible with Square D QO load centers, NQ panelboards, and legacy NQOD panelboards.
What does the HID suffix indicate on the QO120HID?
The HID designation means the breaker is specifically rated for High Intensity Discharge lighting circuits. It is engineered to handle the high inrush currents generated by HID and fluorescent lighting loads without nuisance tripping.
Does the QO120HID include the Square D Visi-Trip feature?
Yes, it includes the Visi-Trip indicator. When the breaker trips due to an overload or short circuit, a red indicator window appears, allowing for rapid identification of the faulted circuit in a busy panel.
Is the QO120HID rated for switching duty?
Yes, in addition to the HID rating, this breaker is SWD (Switching Duty) rated. This means it is approved for the regular switching of 120V fluorescent lighting circuits directly from the breaker handle.
Is the QO120HID HACR rated?
Yes, this breaker carries an HACR rating, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific level of circuit protection.
Can the QO120HID be used in DC applications?
Yes, this breaker is dual-rated for both AC and DC systems. It can be applied in DC control circuits or battery systems up to 48VDC, where it provides a 5kA interrupting capacity.
How does the thermal-magnetic trip mechanism operate on the QO120HID?
The thermal-magnetic mechanism provides dual protection. The thermal component responds to sustained overloads with a delayed trip, while the magnetic component provides an instantaneous trip response to high-current 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