Frequency Sensing

  • 2H34-S Four Stage Frequency Relay

    Read more The 2H34-S Series relay is a frequency monitoring relay with four stages of adjustable frequency pick up & drop out points. Each frequency set point can be set for under or over frequency operation & has an independent time delay driving an output relay. An undervoltage lockout is used to disable the four frequency outputs when the voltage falls below a preset level. Each of the four setting stages has…
  • 2H750 700 Series 50Hz Frequency Sensing Relay

    Read more The 2H750 and 2H760 Series relays are solid state instantaneous frequency sensing relays with electromechanical output contacts. Designed to monitor 50Hz (2H750) and 60Hz (2H760) AC supply systems these relays operate from the sensed voltage and do not require a separate auxiliary supply. The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical system protection & control. Designed to meet rigid Australian & international…
  • 2H760 700 Series 60Hz Frequency Sensing Relay

    Read more The 2H750 and 2H760 Series relays are solid state instantaneous frequency sensing relays with electromechanical output contacts. Designed to monitor 50Hz (2H750) and 60Hz (2H760) AC supply systems these relays operate from the sensed voltage and do not require a separate auxiliary supply. The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical system protection & control. Designed to meet rigid Australian & international…