Eaton QCGFT1040 - 40 A, 120 V, 1-Pole Circuit Breaker | AmpState

Eaton QCGFT1040 is a 40A, 120V, 1-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built with a compact molded case, this breaker helps you maximize panel space without sacrificing protection or performance.

• Space-efficient molded case design minimizes footprint inside the panel, leaving room for future expansions while maintaining robust electrical protection.
• Thermal-magnetic trip unit combines thermal overload sensing with an instantaneous magnetic trip for fast response to short circuits and stable, repeatable protection against nuisance trips.
• 1-pole, 120V, 40A configuration makes it ideal for single-phase branch circuits that require higher current capacity on 120V systems—such as demanding receptacle or lighting runs in residential or light commercial settings.
• OEM-compatible design is engineered to align with matching Eaton OEM load centers and panelboards, ensuring proper fit, synchronized trip curves, and reliable performance over time.
• Versatile across environments suitable for residential, commercial, and light industrial applications where precise overcurrent and short-circuit protection is crucial.

Why this breaker helps your electrical system

For panel maintenance or upgrades, the Eaton QCGFT1040 provides a dependable safeguard against overloads and faults on 120V circuits. The thermal-magnetic trip mechanism is designed to deliver consistent protection across a wide range of operating conditions, so you aren’t left worrying about unexpected trips during peak loads or short-circuit events. Its compact form factor means you can optimize panel organization, helping keep wire routing clean and accessible for future servicing.

Ideal use cases and scenarios

Use the QCGFT1040 when you need robust, single-pole protection for 120V circuits within panelboards or load centers. This is well-suited for:

• High-demand lighting and receptacle circuits in homes and small offices
• Dedicated 120V circuits for appliances or equipment that require reliable protection
• Restructuring or expanding panels where space is at a premium, thanks to its compact molded-case design

Installation and compatibility considerations

Before installation, verify that the panelboard or load center is listed for use with this type of thermal-magnetic molded case breaker and that the amperage rating matches the circuit requirements. The QCGFT1040 is designed for straightforward replacement in compatible Eaton panel systems, ensuring consistent trip characteristics and coordinated protection with other breakers in the same family. Always size conductors according to NEC guidelines and the panel’s listing for 40A, 120V circuits to maintain safe, code-compliant operation.

Whether you’re performing a panel upgrade, replacing a faulty breaker, or planning a new installation, the Eaton QCGFT1040 delivers reliable overcurrent protection with space-efficient design, precise trip performance, and OEM-ready compatibility for durable, worry-free electrical protection.