Eaton 222394 PKZM4-58 PKZM Manual Motor Starter 50-58A 30kW

The Eaton PKZM4-58 is a motor-protective circuit-breaker from the Moeller series with an adjustable current range of 50 - 58 A. It provides overload and short-circuit protection with phase-failure sensitivity per IEC/EN 60947-4-1, using screw terminals with IP00 terminations. Rated up to 40 HP at 460/480 V (3-phase, 60 Hz), it suits demanding industrial motor starter applications.

Technical specifications:

• Model code: PKZM4-58
• Catalog number: 222394
• Manufacturer: Eaton
• EAN: 4015082223946
• Current setting range: 50 - 58 A
• Short-circuit release: 899 A
• Tripping class: 10 A
• Actuator type: Turn button
• Terminal type: Screw terminals, IP00
• Dimensions (WxHxD): 55 x 140 x 160 mm
• Weight: 1.136 kg
• Ambient operating temperature: -25 °C to 55 °C (open); -25 °C to 40 °C (enclosed)
• Ambient storage temperature: -40 °C to 80 °C
• Operating frequency: 40 operations/h
• Mechanical lifespan: 30,000 operations
• Pollution degree: 3
• Heat dissipation: 28.2 W
• Assigned motor power: 10 HP at 230/240 V (1-phase, 60 Hz); 40 HP at 460/480 V (3-phase, 60 Hz); 50 HP at 575/600 V (3-phase, 60 Hz)
• Certifications: IEC/EN 60947-4-1, UL 60947-4-1, CSA-C22.2 No. 60947-4-1-14, VDE 0660, CE

Features and benefits:

• Phase-failure sensitivity per IEC/EN 60947-4-1 and VDE 0660 Part 102 protects motors from single-phasing damage
• Climatic proofing per IEC 60068-2-30 (cyclic damp heat) and IEC 60068-2-78 (constant damp heat) ensures reliable operation in humid environments
• Wide operating temperature range of -25 °C to 55 °C accommodates harsh industrial conditions
• Turn button actuator provides clear trip indication and straightforward manual reset
• 30,000 mechanical operations lifespan delivers long service life in frequent-switching installations

Applications:

• Direct-on-line and star-delta motor starters for industrial pumps, fans, and compressors
• Motor protection in machine tools, conveyors, and processing equipment
• Motor control centers in manufacturing, water treatment, and HVAC plants
• Heavy-duty industrial panels protecting three-phase motors up to 50 HP
• System xStart motor starter assemblies combined with Eaton DILM contactors

Compliant with IEC/EN 60947-4-1, UL 60947-4-1, and CSA-C22.2 No. 60947-4-1-14. Part of the Eaton Moeller PKZM4 series of manual motor starters.

Also known as: Eaton PKZM4-58, Eaton 222394, Eaton catalog 222394, Eaton model PKZM4-58, Eaton 58A manual motor starter, PKZM4 motor protector 58A.