Square D QOB120GFIX10 GFEP Miniature Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Square D
QOB120GFIX10
GFEP Miniature Circuit Breaker
Brand
Square D
SKU
QOB120GFIX10
Quantity
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Square D QOB120GFIX10 - 20A GFEP Miniature Circuit Breaker
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Description
Delivering specialized 10mA Ground Fault Equipment Protection (GFEP), this 20-amp single-pole unit prevents damage to sensitive commercial machinery. The bolt-on configuration fastens firmly into Square D NQ and NQOD panelboards, offering an alternative to the standard 5mA QOB120GFI when higher trip thresholds are required. Operating at 120VAC with a 10kAIC rating, it features a pigtail neutral connection and the standard Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | QOB |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFEP |
|---|---|
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Pigtail Neutral, Load Side Lugs Included |
| Standards | UL 489, UL 1053, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the QOB120GFIX10 circuit breaker?
This bolt-on breaker is designed exclusively for use in Square D NQ and NQOD panelboards. It will not fit in standard QO load centers, which require plug-on breakers.
What level of ground fault protection does the QOB120GFIX10 provide?
The X10 suffix indicates this breaker provides 10mA Ground Fault Equipment Protection (GFEP). It is designed to protect equipment from damaging ground faults, rather than providing the 5mA Class A personnel protection found in standard GFCI breakers.
How is the neutral connected on the QOB120GFIX10?
This breaker features a pigtail neutral wire that must be connected directly to the panel neutral bus bar to ensure proper operation of the ground fault protection circuitry.
What wire sizes are accepted by the terminals on this 20A GFEP breaker?
The pressure plate terminals accept 14 AWG to 8 AWG aluminum or copper wiring. Ensure proper torque is applied during installation as specified on the breaker label.
Is the QOB120GFIX10 rated for 120V or 240V applications?
As a single-pole breaker, it is rated for 120V AC applications only. For 240V equipment protection, a two-pole GFEP breaker is required.
What does the Visi-Trip indicator do on this breaker?
The Visi-Trip feature provides a highly visible red indicator that appears when the breaker has tripped due to an overload, short circuit, or ground fault. This allows electricians to quickly identify the faulted circuit in a crowded panelboard.
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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.