Square D QOB250HID Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Square D
QOB250HID
Miniature Circuit Breaker
Brand
Square D
SKU
QOB250HID
Quantity
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Square D QOB250HID - 50A 2 Pole Miniature Circuit Breaker
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Description
Designed to handle the demanding inrush currents of commercial lighting, the QOB250HID is a 50A, two-pole breaker with a High Intensity Discharge (HID) rating. This specialized calibration prevents nuisance tripping when energizing large banks of HID or fluorescent fixtures in industrial facilities. It fastens into Square D NQ and NQOD panelboards using a standard bolt-on connection. Rated for 10kAIC at 120/240VAC, the unit also features the Visi-Trip indicator for quick fault detection.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB250HID |
| Series | QOB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Square D NQ Panelboards, Square D NQOD Panelboards |
| Wire Gauge | 8 AWG - 2 AWG (Al/Cu) |
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Common Trip, Visual Trip Indicator |
Product FAQs
6 answersWhich panelboards accept the QOB250HID circuit breaker?
This breaker is designed exclusively for Square D NQ and NQOD series panelboards. Because it requires a bolt-on connection to the bus bar, it will not fit in standard QO residential load centers that require plug-on breakers.
What does the HID designation indicate on this breaker?
HID stands for High Intensity Discharge. Breakers with this rating are constructed with specialized contacts to safely handle the severe inrush currents generated by commercial HID or fluorescent lighting fixtures without nuisance tripping.
What are the acceptable wire sizes for the QOB250HID terminals?
The factory-installed box lugs accept either aluminum or copper conductors ranging from 8 AWG to 2 AWG.
Can the QOB250HID be utilized in direct current systems?
Yes. While it is primarily specified for 120/240VAC alternating current systems, this breaker is also rated for direct current applications up to 48VDC.
How is the QOB250HID secured inside the panelboard?
This breaker features a bolt-on connection type. It fastens directly to the bus bar of NQ or NQOD panelboards using integrated screws, which provides a highly secure connection suitable for commercial and industrial environments.
Does the QOB250HID include ground fault or arc fault protection?
No. This is a standard thermal-magnetic breaker with an HID rating for lighting loads. It does not provide GFCI, AFCI, or dual-function protection.
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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.