Moeller ZM-25-PKZ2 Motor Protection Circuit Breaker 25A 1 & 3 Phase 115-575V

Moeller ZM-25-PKZ2 Motor Protection Circuit Breaker 25A 1 & 3 Phase 115-575V

The Moeller ZM-25-PKZ2 is a motor protection circuit breaker in the PKZ2 series, providing combined thermal overload and magnetic short-circuit protection for motors up to 25A. The thermal trip element is adjustable, allowing the overload threshold to be set to match the motor's full-load current, while the magnetic trip responds instantaneously to short-circuit faults. The unit accommodates both single-phase and three-phase motor circuits across a broad voltage range of 115–575V AC.

Specifications & What's Included

• Model: ZM-25-PKZ2
• Series: PKZ2
• Manufacturer: Moeller (now Eaton Moeller)
• Type: Motor Protection Circuit Breaker (thermal-magnetic)
• Current Rating: 25A
• Voltage Rating: 115–575V AC
• Phase: Single Phase or Three Phase
• Poles: 3
• Overload Protection: Adjustable thermal overload trip
• Short-Circuit Protection: Magnetic instantaneous trip
• Form Factor: DIN rail and panel mount compatible
• Front panel: Rotary on/off/trip handle, adjustment dial, green status indicator lights, Test button
• Terminals: Three-phase input and output terminal blocks with ring/fork lug connections
• Certification: CE marked
• Country of Manufacture: Germany
• Condition: Used — wire lugs from prior installation remain attached; unit only as shown

Applications

The Moeller PKZ2-series motor protection circuit breakers are widely used in industrial motor control centers, machine tool panels, pump control systems, conveyor drives, and HVAC equipment. The ZM-25-PKZ2 module mounts directly onto a PKZ2 base or into compatible Moeller/Eaton motor starter combination assemblies, providing both switching and protection in a compact, panel-friendly package. These devices were a standard component in European and internationally deployed industrial automation systems from the 1980s through the 2000s and remain in wide use for legacy machine maintenance and OEM panel replacement. The broad 115–575V AC voltage range makes this unit suitable for both North American and European motor circuits without modification.

Please note: We may have multiple units of this item in stock. The unit you receive may vary slightly from the one shown in the photos. All units are functionally equivalent and inspected to the same standard.