Eaton 278486 PKZM0-12 PKZM Manual Motor Starter 8-12A 5.5kW

The Eaton PKZM0-12 (catalog number 278486) is a 3-pole motor-protective circuit-breaker from the Moeller series, combining overload and short-circuit protection for three-phase motors. Its thermal release is adjustable from 8 to 12 A, with a fixed instantaneous short-circuit release of 186 A and tripping class 10 A compliance.

Technical specifications:

• Model code: PKZM0-12
• Catalog number: 278486
• Manufacturer: Eaton
• EAN: 4015082784867
• Poles: 3
• Thermal release adjustment range: 8-12 A
• Short-circuit release: 186 A
• Tripping class: 10 A
• Actuator type: Turn button
• Operating frequency: 40 operations/h
• Mechanical lifespan: 100,000 operations (main conducting paths)
• Pollution degree: 3
• Dimensions (W x H x D): 45 x 93 x 76 mm
• Weight: 0.295 kg
• Ambient operating temperature: -25 °C to 55 °C (open), -25 °C to 40 °C (enclosed)
• Storage temperature: -40 °C to 80 °C
• Heat dissipation: 6.64 W
• 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 protects against single-phasing damage
• Tripping class 10 A delivers reliable, coordinated motor overload protection
• Rated for motor loads up to 10 HP at 575/600 V, 60 Hz, 3-phase
• Climatic proofing to IEC 60068-2-30 (cyclic damp heat) and IEC 60068-2-78 (constant damp heat)
• 100,000 mechanical operations rated lifespan suited to high-duty cycle applications

Applications:

• Three-phase induction motor protection in direct-on-line starters
• Motor control centers and industrial control panels
• Pump, fan, and compressor motor circuits
• Machine tool and production line automation
• Industrial machinery with frequent start-stop duty cycles

Compliant with IEC/EN 60947-4-1, UL 60947-4-1, CSA-C22.2 No. 60947-4-1-14, and VDE 0660. Part of the Eaton Moeller PKZM0 series of manual motor starters.

Also known as: Eaton PKZM0-12, Eaton 278486, Eaton catalog 278486, Eaton model PKZM0-12, PKZM0 12A motor protector.