Preventer – Toroidal

MAGNUM  PREVENTERS & AUTO START UNIT is a powerful electronic circuit which prevents three phase operated electrical machines from single phase cut off, phase sequence reversal and unbalanced voltage, dry run protection, Auto-Start Functionality etc. these can be used for any single phase and three phase motor upto 20H.P.

Salient Features

  1. These are microcontroller based products which switches on three phase motor automatically & also protects it against under voltage or wrong phase sequence and phase failure condition or  Current sensing etc.
  2. Longer working life, in lieu of finest raw materials usage.
  3. Option to switch on the motor automatically (to start the
    motor automatically when power resumes).


Usage Motors
Brand Magnum
Voltage 415V
Phase Three Phase


  • Electrical Panels.
  • Compressor Motors.
  • Submersible Pumps.


  • Eye-catching look.
  • Sturdy design.
  • Splendid finish.
  • Current sensing protection.
  • Single Phasing Protection.