Eaton / Cutler-HammerCHFN250GF
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Eaton / Cutler-Hammer CHFN240GF GFCI Miniature Circuit Breaker
- 40A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
CHFN240GF
GFCI Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHFN240GF
Quantity
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Eaton / Cutler-Hammer CHFN240GF - 40A GFCI Miniature Circuit Breaker
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Description
Engineered for residential and commercial applications, this 40-amp ground-fault interrupter provides 5mA personnel protection. It features a pigtail neutral connection and built-in self-test capabilities to meet NEC requirements. The plug-on design mounts securely into Eaton CH load centers. It serves as an exact replacement for older CHFGF240 and CH240GF models. Visual trip indicators quickly identify fault conditions alongside standard thermal-magnetic overload defense.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | CHFN |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Eaton CH Load Centers |
| Wire Gauge | 14-3 AWG |
| Max Wire | 3 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 | UL 489, UL 943, CSA C22.2 No. 5 |
| Approval | UL, CSA |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Self-Test, Common Trip |
Product FAQs
8 answersWhat type of electrical panel accepts the CHFN240GF?
This breaker is designed exclusively for Eaton CH series load centers, which use a 3/4-inch spacing format. It will not fit in Eaton BR series panels or panels from other manufacturers.
What level of ground fault protection does this breaker provide?
It provides Class A ground fault protection with a 5 mA trip sensitivity, which is designed for personnel protection against electrical shock hazards.
Does this breaker require a plug-on neutral panel?
No. This model features a pigtail neutral wire that connects directly to the neutral bus bar, making it compatible with standard, non-plug-on neutral Eaton CH load centers.
What is the recommended tightening torque for the box lug terminals?
The manufacturer specifies a tightening torque of 25 lb-in for the load terminals.
Can I use the CHFN240GF to replace an older CH240GF breaker?
Yes. The CHFN240GF is the direct, updated replacement for legacy part numbers CH240GF and CHN240GF. It fits the same physical footprint and offers the same electrical ratings.
How do I read the diagnostic LED on this breaker?
After a trip event, turning the breaker back on will cause the red LED to blink a specific pattern (1 to 6 times) indicating the cause of the trip. This code repeats 30 times to help you troubleshoot the circuit.
What does it mean if the red LED stays solidly illuminated?
According to Eaton, a constantly illuminated red LED without a blinking pattern is a cosmetic issue on certain models and does not indicate a safety concern or a loss of ground fault protection.
How do I recall the last trip code if I missed the LED blinking?
Turn the breaker handle to the OFF position, press and hold the TEST button, turn the handle to the ON position, and then release the TEST button. The LED will blink the last recorded trip code 30 times.
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