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Eaton / Cutler-Hammer QCF1040 Miniature Circuit Breaker
- 40A
- 1 Pole
- Panel Mount
Eaton / Cutler-Hammer
QCF1040
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QCF1040
Quantity
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Eaton / Cutler-Hammer QCF1040 - 40A 1 Pole Miniature Circuit Breaker
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Quantity
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Description
Built for robust performance in OEM control panels and enclosures, the QCF1040 is a 40A miniature circuit breaker from Eaton's Quicklag series. This single-pole device operates at 120/240VAC with a 10 kAIC interrupting rating, providing essential long-time and instantaneous trip functions. It utilizes a cable-in/cable-out connection style with standard box lugs, accommodating 14-4 AWG wire. The breaker is HACR and HID rated, making it suitable for a wide variety of specialized industrial loads.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | QCF |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QCF |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | OEM Control Panels, Enclosures, Eaton Quicklag Panelboards |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Shunt Trip, Auxiliary Switch, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip |
Product FAQs
5 answersHow are the line and load connections made on the QCF1040?
This breaker utilizes a cable-in/cable-out connection method. Both the line and load sides are equipped with standard box lugs for direct wire termination, eliminating the need for a busbar connection.
What wire gauge is accepted by the terminals on this breaker?
The standard box lugs accommodate wire sizes ranging from 14 AWG to 4 AWG, providing flexibility when sizing conductors for the 40-amp load or adjusting for voltage drop.
Is the trip unit on the QCF1040 adjustable?
No, it features a fixed thermal-magnetic trip unit. The long-time and instantaneous trip functions are non-interchangeable and factory set.
What type of panels accept the QCF1040 breaker?
Because it is a front-mounted, feed-thru breaker, it does not plug or bolt onto a traditional busbar. It is designed for OEM control panels, standalone enclosures, and specific Eaton Quicklag panelboards configured for cable-in/cable-out devices.
Can this breaker replace an older Cutler-Hammer QCF1040?
Yes. Eaton manufactures the Quicklag series previously branded under Cutler-Hammer. This unit serves as an exact, drop-in replacement for legacy Cutler-Hammer breakers sharing the same catalog number.
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