Eaton / Cutler-HammerQCGFT1030
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Eaton / Cutler-Hammer QCGFT1040 GFCI Miniature Circuit Breaker
- 40A
- 1 Pole
- Panel Mount
Eaton / Cutler-Hammer
QCGFT1040
GFCI Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QCGFT1040
Quantity
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Eaton / Cutler-Hammer QCGFT1040 - 40A GFCI Miniature Circuit Breaker
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Description
Rated for 40 amps at 120/240VAC, the Eaton QCGFT1040 offers robust ground fault protection for demanding commercial environments. This single-pole miniature circuit breaker utilizes thermal-magnetic trip technology alongside a 5mA ground fault sensor. The panel mount construction features cable-in/cable-out box lugs, making it ideal for custom OEM panels and Eaton Quicklag enclosures. An automated self-test mechanism continuously verifies the protective circuitry to meet strict NEC standards.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | QCGFT |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QCGFT |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Quicklag Enclosures, OEM Panels |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| 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 Thermal, Fixed Magnetic |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Ground Fault Self Test |
Product FAQs
7 answersWhat enclosures are compatible with the QCGFT1040 breaker?
This breaker is designed for Eaton Quicklag enclosures and custom OEM panels. Because it uses a feed-thru mounting style with cable-in and cable-out lugs, it does not plug onto a standard residential load center bus bar.
How is the neutral connection handled on the QCGFT1040?
This GFCI breaker includes a pigtail neutral wire that must be connected directly to the neutral bar in your panel or enclosure to establish the return path for the ground fault sensing circuitry.
What wire sizes are accepted by the box lugs on this breaker?
The terminal lugs accept 14 AWG to 4 AWG wire and are rated for both copper and aluminum conductors.
What is the ground fault trip threshold for this breaker?
The QCGFT1040 features a 5mA ground fault sensor, providing Class A protection designed to protect personnel from electrical shock.
What trip functions are included in the QCGFT1040?
This thermal-magnetic breaker includes Long-Time and Instantaneous trip functions for standard overload and short circuit protection, plus a Ground Fault sensor for personnel protection.
Does this GFCI breaker perform internal diagnostic checks?
Yes, it includes an automated self-test mechanism that continuously verifies the integrity of the protective circuitry to meet current NEC safety standards.
Can I use this breaker to replace an older Cutler-Hammer QCGFT1040?
Yes. Eaton acquired Cutler-Hammer, and breakers with this catalog number are fully interchangeable regardless of which brand name is printed on the label.
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