Eaton Moeller PKZM0-4 Motor Protection Circuit Breaker

The PKZM0-4 Manual Motor Starter Protector from Klockner Moeller / Eaton is a three-pole, thermal-magnetic motor protection device designed for manual switching and for overload and short-circuit protection of three-phase motors. It offers a current adjustment range of 2.5 to 4 A with a rated operational current (Ie) of 4 A and supports motor ratings of 1.5 kW at 400 VAC or 3 HP at 575–600 VAC. The device is rated up to 690 VAC and provides short-circuit breaking capacity up to 150 kA at 400 VAC with appropriate backup protection. Mounting options include 35 mm DIN rail or panel mounting, with screw-clamp terminals for secure connections. Typical applications include conveyors, pumps, compressors, HVAC equipment, and other industrial machinery, and it is commonly used in motor control centers and electrical panels. For replacements, compatible units include Schneider Electric GV2ME08 and ABB MS116-4.0, with the PKZM0-4 fitting into the PKZM0 series as a compact protective solution.