Motor Starter


Motor starters are electromechanical protection devices for the main circuit. They are used mainly to switch motors manually ON/OFF and to provide fuse less protection against short-circuit, overload and phase failures. Fuse less protection saves costs, space and ensures a quick reaction under short-circuit condition by switching off the motor within milliseconds. Starter combinations are setup together with contactors and are available with screw or Push-in Spring terminals.


Main benefits


  • Harmonized main accessory range (auxiliary contacts, signal contacts,
    shunt trips and undervoltage releases) for MS1xx and MO1xx family.
  • Compact design
  • Efficient planning and installation perfectly matching the ABB contactor
  • Simple connecting links ensure electrical and mechanical connection to
    build direct-on- line starters.
  • Less machine downtime by protecting motors and reduced trouble shooting and reduced maintenance expenditures by protecting motors.
  • ABB’s Push-in Spring terminals offer unique, fast , easy and reliable connections.


Main features


  • Manual control / short-circuit current and overload protection.
  • Adjustable current setting for overload protection and magnetic trip indication.
  • Disconnection function
  • Temperature compensation
  • Remote control via undervoltage release or shunt trip.
  • Short-circuit service breaking capacity Ics up to 100 kA.

For more information, please contact us

ติดต่อ WNJ Rungroj Electric