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Square D QOB115EPD GFEP Miniature Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
Square D
QOB115EPD
GFEP Miniature Circuit Breaker
Brand
Square D
SKU
QOB115EPD
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Square D QOB115EPD - 15A GFEP Miniature Circuit Breaker
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15A GFEP Miniature Circuit Breaker
15A GFEP Miniature Circuit Breaker
15A GFEP Miniature Circuit Breaker
Description
Built for equipment protection, the Square D QOB115EPD is a 1-pole, 15A breaker. It safeguards heat trace systems and outdoor loads requiring a 30mA ground fault trip threshold, differing from 5mA personnel GFCI units. This bolt-on unit mounts into Square D NQ and NQOD panelboards. It accepts 14-8 AWG wiring and includes a pigtail neutral. Rated at 10kAIC for 120VAC systems, it features thermal-magnetic trip technology and a Visi-Trip indicator for clear visual status.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB115EPD |
| Series | QOB |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Square D NQ Panelboards, Square D 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 | Padlock Attachment |
| Accessories | Load Side Lugs Included, Pigtail Neutral |
| Standards | CSA C22.2 No. 5, UL 489, SWD |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Visual Trip Indicator |
Product FAQs
6 answersWhich panelboards are compatible with the QOB115EPD?
This bolt-on breaker is designed specifically for Square D NQ and NQOD panelboards. It cannot be installed in standard QO plug-on load centers or Homeline panels.
What is the difference between the QOB115EPD and the QOB115GFI?
The QOB115EPD is an Equipment Protection Device (EPD) with a 30mA ground fault trip threshold, intended to protect equipment from damage. The QOB115GFI is a Class A GFCI with a 5mA trip threshold, designed for personnel protection against electric shock.
What applications typically require a 30mA EPD breaker?
The 30mA equipment protection threshold is commonly specified for heat trace cables, snow melting equipment, and certain industrial loads where minor leakage current is normal and a standard 5mA GFCI would cause nuisance tripping.
How is the neutral connected on the QOB115EPD?
This breaker features a pigtail neutral wire. The pigtail must be routed and terminated directly to the neutral bus bar in the panelboard to power the internal ground fault sensing circuitry.
How does the Visi-Trip indicator function on this breaker?
When a fault or overload causes the breaker to trip, the handle snaps to a center position and a bright red flag appears in the indicator window. This allows for rapid identification of the tripped circuit within a crowded NQ or NQOD panelboard.
Can this breaker be used in a plug-on neutral load center?
No. The QOB115EPD requires a bolt-on connection to the panel bus and relies on a wired pigtail for the neutral connection. It is not compatible with plug-on neutral (PON) designs.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 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
205 reviews
- 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.
- RKRyan K.Verified BuyerReviewingSquare D QOB230VH - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26Awesome
Worked great