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.
