Eaton QCF2040 - 40 A, 240 V, 2-Pole Circuit Breaker | AmpState

Meet the Eaton QCF2040—a 40A, 240V, 2-pole molded case circuit breaker designed to provide dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact, space-efficient footprint helps you maximize panel capacity without compromising safety or performance.

Designed for real-world installations across residential, commercial, and light industrial environments, the QCF2040 delivers stable protection with a thermal-magnetic trip unit. That means fast, repeatable response to overcurrent conditions while smoothly handling a variety of loads—from lighting circuits to small motors—so you can count on consistent protection when it matters most.

Why this breaker stands out

• Compact molded case design optimizes panel space, making it easier to fit additional circuits and simplify wiring inside crowded panels.
• Thermal-magnetic trip unit provides stable, repeatable protection performance across varying current conditions, reducing nuisance trips and improving reliability.
• OEM compatibility is built in—the QCF2040 is designed to work with matching Eaton OEM loadcenters and panelboards for a seamless, trouble-free replacement or upgrade.
• Versatile application ideal for residential panels, commercial installations, and light industrial setups requiring solid branch circuit protection.

Technical snapshot

• Manufacturer: Eaton
• Part Number: QCF2040
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 240V
• Number of Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Practical usage and benefits

Whether you’re upgrading an aging panel, wiring a new commercial room, or expanding a light industrial feeder, the QCF2040 provides reliable protection with minimal panel disruption. Its 2-pole design is well-suited for 240V circuits, and the 40A rating aligns with common branch circuit requirements in mid-range residential and small-scale commercial projects.

Key scenarios include:

• Replacing a failing breaker in a compatible panelboard to restore safe operation quickly.
• Adding a new 240V circuit for a dedicated appliance or equipment while preserving overall system protection.
• Upgrading to a modern, OEM-compatible unit for streamlined maintenance and service compatibility.

When you choose the Eaton QCF2040, you’re selecting a solution that pairs compact design with dependable protection, designed to integrate smoothly with existing Eaton loadcenters and panelboards while delivering clear, tangible benefits in everyday electrical safety and reliability.