Eaton / Cutler-HammerQBGFEP2040
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Eaton / Cutler-Hammer QBGFEP2050 GFEP Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
QBGFEP2050
GFEP Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QBGFEP2050
Quantity
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Eaton / Cutler-Hammer QBGFEP2050 - 50A GFEP Miniature Circuit Breaker
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Description
Engineered to prevent damage from low-level ground faults, the Eaton QBGFEP2050 delivers 50A of thermal-magnetic overcurrent defense alongside 30mA equipment protection. It is ideal for industrial machinery, heat trace cables, and commercial systems requiring dedicated GFEP monitoring. Designed for Eaton Pow-R-Line panelboards, this 2-pole breaker utilizes a reliable bolt-on mounting mechanism. With a 10 kAIC rating at 120/240V, this HACR-rated breaker ensures robust performance.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBGFEP2050 |
| Series | QBGFEP |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line Panelboards |
| Wire Gauge | 8-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Special Classification | GFEP |
|---|---|
| Available Options | Auxiliary Switch, Bell Alarm |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 1053, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Common Trip |
Product FAQs
7 answersWhich panelboards are compatible with the QBGFEP2050 circuit breaker?
This bolt-on breaker is designed for Eaton Pow-R-Line commercial panelboards. It specifically fits panels configured for BAB or QB-frame branch breakers, such as the Pow-R-Line 1a and 1X series.
What is the ground fault trip sensitivity of this breaker?
It features a 30mA ground fault trip sensitivity. This classifies it as Ground Fault Equipment Protection (GFEP), which prevents damage to machinery and circuits, rather than 5mA personnel protection (GFCI).
Can I use this GFEP breaker to protect personnel in wet locations?
No. Because it has a 30mA trip threshold, it is strictly rated for equipment protection (such as for heat trace cables or heavy machinery). For personnel protection in wet locations, a 5mA Class A GFCI breaker is required.
How do I install the neutral connection for the ground fault circuit?
The breaker is equipped with a pigtail neutral wire. This coiled wire must be routed and connected securely to the panel neutral bar to enable proper ground fault sensing and ensure the breaker operates correctly.
Is this Eaton breaker a direct replacement for Cutler-Hammer or Westinghouse versions?
Yes. Eaton acquired both Cutler-Hammer and Westinghouse. This breaker is the exact, interchangeable replacement for legacy Cutler-Hammer and Westinghouse breakers bearing the QBGFEP2050 catalog number.
What does the LIG trip function code indicate for this unit?
The LIG designation means the breaker incorporates Long-Time (thermal overload), Instantaneous (magnetic short-circuit), and Ground-Fault trip functions to provide comprehensive circuit and equipment protection.
How does this bolt-on breaker physically secure to the panel?
Instead of snapping onto the bus, this breaker features bolt-on brackets that must be mechanically fastened directly to the panelboard bus with screws. This provides a high-reliability connection common in commercial and industrial distribution panels.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- ACAndrew C.ReviewingEaton / Cutler-Hammer QBGFEP1020 - 20A GFEP Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/19/21Fast service!
Got my breakers faster and cheaper than the local parts house could! Can’t beat that!
- RCRandall C.ReviewingEaton / Cutler-Hammer QBGFEP2020 - 20A GFEP Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars11/20/19Breakers
I ordered the breakers I needed and where described on the site. The breakers came promptly and were correct. Great job.