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Eaton / Cutler-Hammer GFTCB245 GFCI Miniature Circuit Breaker
- 45A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
GFTCB245
GFCI Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GFTCB245
Quantity
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Eaton / Cutler-Hammer GFTCB245 - 45A GFCI Miniature Circuit Breaker
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Description
Rated 10 kAIC at 120/240V, this 45-amp GFCI breaker provides essential personnel protection for circuits in damp or wet environments. The Eaton GFTCB245 utilizes thermal-magnetic trip technology alongside 5mA Class A ground fault detection. It installs into Eaton BR load centers and serves as a compatible fit for older Bryant, Challenger, and Westinghouse panels. Equipped with a pigtail neutral and self-testing diagnostics, it ensures your electrical system meets modern safety standards.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GFTCB |
| Amperage | 45A |
| 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 Load Centers, Challenger Load Centers, Bryant Load Centers |
| 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 |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 144, Federal Spec W-C375, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Self-Test, Common Trip |
Product FAQs
7 answersCan I install the Eaton GFTCB245 in older Westinghouse or Bryant panels?
Yes. The Eaton BR series is backward compatible for use in legacy Westinghouse, Challenger, and Bryant load centers that accept Type BR breakers.
Does this breaker require a plug-on neutral load center?
No. The GFTCB245 features a pigtail neutral connection, making it compatible with standard load centers that do not have a plug-on neutral bus.
What is the ground fault trip threshold for the GFTCB245?
This breaker provides Class A ground fault protection, meaning it is designed to trip when it detects a ground fault current of 5mA.
Does the GFTCB245 include self-testing features?
Yes. The GFTCB series includes built-in self-test diagnostics to ensure the ground fault circuitry is functioning properly, meeting modern NEC requirements for GFCI protection.
How is the neutral connected for the GFTCB245?
The coiled white pigtail wire must be landed on the panel neutral bus to power the internal GFCI circuitry. If your 240V load requires a neutral, the load neutral wire connects to the designated neutral lug on the breaker. If it is a straight 240V load without a neutral, the breaker load neutral lug remains empty.
What wire sizes are accepted by the GFTCB245 terminals?
The box lug terminals accept copper or aluminum wire ranging from 14 AWG to 4 AWG. Always refer to the side label on the breaker for the correct torque specifications based on your specific wire size.
Is the GFTCB245 a direct replacement for the older GFCB245?
Yes. The GFTCB245 is the direct factory replacement for the legacy Cutler-Hammer or Eaton GFCB245, updated to include modern self-test functionality.
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