Eaton 222355 PKZM4-50 Manual Motor Starter 40-50A 25kW DIN Rail

The Eaton PKZM4-50 is a motor-protective circuit-breaker from the Moeller series with an adjustable current range of 40 to 50 A and screw terminals rated IP00. It provides phase-failure sensitivity per IEC/EN 60947-4-1 and a tripping class 10 A overload characteristic for reliable motor protection. A short-circuit release fixed at 775 A and a mechanical lifespan of 30,000 operations make it well suited to continuous industrial use.

Technical specifications:

• Model code: PKZM4-50
• Catalog number: 222355
• Manufacturer: Eaton
• EAN: 4015082223557
• Current range (Ir): 40 - 50 A
• Terminal type: Screw terminals, IP00
• Dimensions (W x H x D): 55 x 140 x 160 mm
• Weight: 1.136 kg
• Actuator type: Turn button
• Tripping characteristic: Overload class 10 A
• Short-circuit release: 775 A
• Operating frequency: 40 operations/h
• Pollution degree: 3
• Mechanical lifespan: 30,000 operations (main conducting paths)
• Ambient operating temperature: -25 °C to 55 °C (open), -25 °C to 40 °C (enclosed)
• Storage temperature: -40 °C to 80 °C
• Assigned motor power at 230/240 V, 60 Hz, 3-phase: 15 HP
• Assigned motor power at 460/480 V, 60 Hz, 3-phase: 30 HP
• Assigned motor power at 575/600 V, 60 Hz, 3-phase: 40 HP
• Heat dissipation, current-dependent (Pvid): 24.6 W
• Certifications: UL (File No. E36332), CSA (File No. 165628), CE, IEC/EN 60947-4-1, VDE 0660
• Climatic proofing: Damp heat cyclic per IEC 60068-2-30, damp heat constant per IEC 60068-2-78

Features and benefits:

• Phase-failure sensitivity protects motors against single-phasing faults, reducing motor damage risk
• Wide 40 to 50 A adjustment range provides flexibility across multiple motor ratings
• Turn button actuator enables manual switching and current adjustment directly on the device
• Pollution degree 3 rating and full climatic proofing suit humid or industrial enclosure environments
• Internationally certified under UL, CSA, CE, and VDE 0660 for global panel deployment

Applications:

• Direct-on-line motor protection in industrial machinery and control panels
• Pump and fan motor protection in HVAC and water treatment systems
• Conveyor, compressor, and mixer motor starters in production lines
• Switchgear assemblies requiring IEC/EN 60947-4-1 compliant motor protection
• Multi-voltage installations across North American and international systems

Compliant with IEC/EN 60947-4-1 and IEC/EN 60947. Part of the Eaton Moeller PKZM4 manual motor starter series.

Also known as: Eaton PKZM4-50, Eaton 222355, Eaton catalog 222355, Eaton model PKZM4-50, Eaton motor-protective circuit-breaker 50 A, PKZM4 50A motor starter.