Proton Power controls

Single Phase Voltage Frequency Relay MODEL : VFR-1P DIN RAIL

Voltage And Frequency Relays For Single Phase Systems, Manufacturer, Supplier, Exporter, Proton Power Control, Pune, Maharashtra, India

vfr-1p-din-rail
vfr-1p-din-rail

The voltage-frequency-relay 1P(Single Phase) monitors voltage and frequency in one Phase networks with neutral and switches off rapidly when required.
For safe running of electrical devices, special protections that keep a continuous watch on supply conditions are very essentials. 'PROTONs VFR 1P' offer following protections along with 3 digit display showing R-N(L-N) voltage and frequency in scanning mode with precise accuracy. LOW/HIGH voltage and frequency(settable) tripping to ensure trouble free running of Loads.



  • Supply voltage : 1 Phase 230 VAC, 50 Hz (No auxiliary supply)
  • Output Contacts : Two SPDT (C-N/O-N/C) Relay, Rating 5A at 250V AC
  • Indications : FAULT (UV, OV, UF, OF)
  • RELAY ON Status : GREEN LED
  • Operating Temperature range : -5 C to 60 C.
  • Relative Humidity : 10 to 95% RH
  • Mounting : Din Rail
  • Dimensions : 55(W) X 75(H) X 110(D) mm.
  • Keys :
  • SET : SET key, Press to enter into SET Mode
  • INC : Upward Arrow key, Press to increment the set point.
  • DEC : Downward Arrow key, To Decrement the set point.
  • Microcontroller based technology.
  • Protection against under voltage, over voltage, Over Frequency, Under Frequency.
  • All the set points settable by keys.
  • Trip Delay for Voltage & Frequency is settable.
  • Indications for Voltage & Frequency Relay status.
  • Message Display for over & under voltage or frequency Faults.
  • No separate auxiliary supply required.