The Eaton Cutler-Hammer QCL2040U molded case circuit breaker is a 2‑pole device rated for 240 V and 40 A. It provides overcurrent protection for electrical circuits by interrupting current when the load exceeds its rating, and is commonly used in distribution panels to guard feeders and branch circuits. The part number QCL2040U uniquely identifies this unit within the Cutler-Hammer QCL family from Eaton.
