Frequency

  • The relay serves to monitor frequency of AC voltage, e.g. in photovoltaic power stations, generators.
  • The monitored frequency 50/60/400 Hz is selected by a switch.
  • Two adjustable levels of frequency (Fmin, Fmax) in the range of 80 – 120 % Fn.
  • Adjustable difference level.
  • Adjustable delay level.

Technical parameters

  • Circuit monitoring: 1-phase
  • Adjustable range: 40-60 Hz, 48-72 Hz, 320-480 Hz
  • Output: 2x CO, 8 A
  • Housing: 3-MODULE
  • Power supply: AC 161-500 V (50/60/400 Hz)
  • Dimensions: 90 x 52 x 65 mm (3.5˝ x 2˝ x 2.6˝)

Download Datasheet

HRF-10 Datasheet


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HRF-10

Frequency monitoring relay
Single-phase, 40-480 Hz