Manufacturing for MFF has been discontinued.

MFF relays are microprocessor based relays that provide protection against frequency variations in AC systems.

Applications
  • AC systems
Protection and Control 
  • Under and overfrequency

MFF Digital Frequency Relay - Legacy

Manufacturing for MFF has been discontinued.

MFF relays are microprocessor based relays that provide protection against frequency variations in AC systems.

Applications
  • AC systems
Protection and Control 
  • Under and overfrequency