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Eaton / Cutler-Hammer GFTCB240 GFCI Miniature Circuit Breaker
- 40A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
GFTCB240
GFCI Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GFTCB240
Quantity
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Eaton / Cutler-Hammer GFTCB240 - 40A GFCI Miniature Circuit Breaker
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Description
Built for residential and commercial applications, the Eaton GFTCB240 delivers reliable 5mA Class A ground fault protection. It is designed to safeguard personnel in wet or damp locations as required by NEC codes. This 40-amp, two-pole breaker mounts into standard Eaton BR panelboards, plus legacy Westinghouse and Challenger enclosures. Featuring a pigtail neutral connection, it provides a 10kAIC rating at 120/240V and includes an automatic self-test function to ensure continuous safety.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GFTCB240 |
| Series | GFTCB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton BR Load Centers, Westinghouse, Challenger, Bryant |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 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 | GFCI |
|---|---|
| Accessories | Pigtail Neutral |
| Standards | Federal Spec W-C375, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, Self-Test |
Product FAQs
7 answersWhich load centers are compatible with the GFTCB240?
This breaker is designed for use in Eaton BR series load centers. It is also backward compatible with legacy Westinghouse, Challenger, and Bryant panels that accept BR-type breakers.
Can I install the GFTCB240 in an Eaton CH series panel?
No, this is a BR-frame breaker with a 1-inch width per pole. It will not fit in Eaton CH series load centers, which require 3/4-inch CH-frame breakers.
Can I use the GFTCB240 to replace older Bryant or Westinghouse GFCI breakers?
Yes, the GFTCB240 is the direct replacement for legacy 40A 2-pole GFCI breakers from Bryant, Westinghouse, and Challenger, including catalog numbers like GFCB240 and BRN240GF.
How does the neutral connection work on the GFTCB240?
This breaker features a pigtail neutral. The coiled white pigtail wire must be connected directly to the load center's neutral bar to power the breaker's internal ground fault sensing circuitry.
What wire sizes are accepted by the box lugs on this breaker?
The terminals on the GFTCB240 accept copper or aluminum wiring ranging from 14 AWG to 4 AWG.
How much panel space is required to install this breaker?
As a 2-pole BR frame breaker, the GFTCB240 requires two standard 1-inch spaces in the load center.
What is the ground fault trip threshold for the GFTCB240?
This breaker provides Class A personnel protection with a 5mA ground fault trip sensitivity. It will open the circuit if it detects a current imbalance of 5mA or greater.
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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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- MGMike G.Rated 5 out of 5 stars1/13/22Awesome site with detailed product
Awesome site with detailed product information,fantastic customer service, would highly recommend them. Mike M.
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