The Eaton WMZS1D40 is a single-pole miniature circuit breaker rated at 40 amps, designed to provide overcurrent protection for a single hot conductor in electrical panels. As part of Eaton's Klockner Moeller lineage, the WMZS1D40 carries the specific WMZS1D40 designation for easy identification in low‑voltage distribution systems. Used in electrical panels to interrupt fault or overload currents on a single circuit, this compact 40 A MCB helps maintain system safety and continuity.
