Eaton 278489 PKZM0-32 PKZM Manual Motor Starter 25-32A 15kW

The Eaton PKZM0-32 is a 3-pole motor-protective circuit-breaker from the Moeller PKZM0 series, providing overload and short-circuit protection for three-phase motors with an adjustable current range of Ir = 25-32 A. The instantaneous short-circuit release operates at 496 A, and built-in phase-failure sensitivity guards against motor damage from unbalanced supply conditions.

Technical specifications:

• Model code: PKZM0-32
• Catalog number: 278489
• Manufacturer: Eaton
• EAN: 4015082784898
• Poles: 3
• Current adjustment range (Ir): 25-32 A
• Short-circuit release: 496 A
• Tripping class: 10 A
• Actuator type: Turn button
• Operating frequency: 40 operations/h
• Mechanical lifespan: 100,000 operations
• Pollution degree: 3
• Ambient temperature (open): -25 °C to +55 °C
• Ambient temperature (enclosed): -25 °C to +40 °C
• Storage temperature: -40 °C to +80 °C
• Assigned motor power at 200/208 V, 60 Hz, 3-phase: 7.5 HP
• Assigned motor power at 230/240 V, 60 Hz, 3-phase: 10 HP
• Assigned motor power at 460/480 V, 60 Hz, 3-phase: 20 HP
• Assigned motor power at 575/600 V, 60 Hz, 3-phase: 25 HP
• Assigned motor power at 230/240 V, 60 Hz, 1-phase: 5 HP
• Heat dissipation (current-dependent): 9.56 W
• Heat dissipation per pole: 3.19 W
• Dimensions (W x H x D): 45 x 93 x 76 mm
• Weight: 0.288 kg
• Certifications: IEC/EN 60947-4-1, UL 60947-4-1, CSA-C22.2 No. 60947-4-1, VDE 0660, CE

Features and benefits:

• Phase-failure sensitivity protects motors from damage caused by unbalanced or lost supply phases
• Tripping class 10 A suits standard industrial motor starting with moderate inrush currents
• Wide operating temperature range from -25 °C to +55 °C supports demanding industrial environments
• 100,000 mechanical operations on main conducting paths for long service life
• Compact 45 mm width enables space-efficient DIN rail installation in motor control panels
• Multiple international approvals including UL, CSA, IEC/EN, VDE, and CE support global deployment

Applications:

• Direct-on-line motor starting for three-phase motors up to 20 HP at 460/480 V
• Motor branch circuit protection in industrial machinery and conveyor systems
• Pump and compressor motor protection in process automation
• HVAC and building services motor control panels

Compliant with IEC/EN 60947-4-1 and UL 60947-4-1. Part of the Eaton Moeller PKZM0 series of manual motor starters and protective circuit-breakers.

Also known as: Eaton PKZM0-32, Eaton 278489, Eaton catalog 278489, Eaton model PKZM0-32, Eaton motor protection circuit breaker 32A, Eaton manual motor starter PKZM0.