- The VP-002 is a range of phase failure / phase sequence/under voltage/over-voltage protection relays to continuously monitor AC power supplies both single phase and three phases.
- Output relay will operate to ON (pin 1 & pin 3 close) when power is applied to the unit normally, and simultaneously detect if supplied power voltages ( single or three phase) are within the set voltage range, and phase in correct sequence for three phase type.
- 0% to 20% knob-adjustable separately for over voltage and under voltage. If voltage is over or under than the setting voltage for over 3 seconds, then the output relay will be released to its original position ( pin 1 & pin 4 close).