Motor starter with push-button actuator PKZM01-0.4 278477

Motor starter switch – reliable drive protection

This three-pole PKZM01-0.4 motor starter switch is a compact and efficient solution for protecting electric motors. Designed by Eaton, it combines overload and short-circuit protection in one device, providing comprehensive protection for the installation and extending the life of connected motors. This switch is particularly useful in applications requiring frequent motor starting and stopping, such as pumps, fans, or conveyors.

Design and application

The PKZM01-0.4 switch features a robust design for fixed mounting. Its compact dimensions (45 mm wide, 90 mm high, and 93 mm deep) allow for easy integration with existing control cabinets. The push-button drive provides intuitive operation and quick power restoration after tripping. The use of a thermal-magnetic tripping method guarantees a precise response to overloads and short circuits, minimizing the risk of damage to the motor and installation. The rated operating power for AC-3 is 0.09 kW at 400 V and 0.06 kW at 230 V, and the rated continuous current is 0.4 A.

Advantages and benefits

• High short-circuit breaking capacity: The rated short-circuit breaking capacity Icu of 50 kA at 400 V AC provides effective protection in the event of serious short circuits in the motor circuit.
• Versatility: Compatibility with PKZM0 and PKZM01 series accessories (release coils, auxiliary contacts) allows the switch to be adapted to specific application requirements.
• Phase failure sensitivity: The built-in phase failure detection function protects the motor from damage caused by operation at incomplete voltage.
• Precise adjustment: The adjustment range of the overload release (0.25 – 0.4 A) allows precise matching to the load characteristics, preventing unnecessary tripping.
• Safety and reliability: Compliance with IEC/EN60947 standards guarantees a high level of safety and reliability.
• Easy installation: Screw connection of the main contacts ensures a secure and durable connection of electrical wires.
• Space saving: Compact dimensions allow for mounting in tight spaces in control cabinets.

The PKZM01-0.4 switch is a solid choice for both professional installers and end-users looking for reliable protection for their electric motors – providing peace of mind and long-term drive system performance.