SREE DHANAM AUTOMATION PVT LTD
Frequency Relays

Frequency Relays

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 Frequency Relays

  • Over/under frequency monitoring relays
  • Measuring if power supply frequency is within set limits
  • Measure on own power supply
  • Measuring ranges Voltage: 24 to 240 VAC
  • Frequency: 50 - 60 Hz
  • Separately adjustable upper/lower level on relative scale
  • Adjustable delay on alarm or on recovery (0.1 to 30 s)
  • Programmable latching or inhibit at set level
  • Output: 8 A SPDT relay N.D. or N.E. selectable
  • For mounting on DIN-rail in accordance with DIN/EN 50 022 (DFB01) or plug-in module (PFB01)  22.5 mm Euronorm housing (DFB01) or 36 mm plug-in module (PFB01)
  • LED indication for relay, alarm and power supply ON