Function:

The Under/Over Voltage Monitoring Relay monitors the system voltage continuously. In case of system voltage drop/rise below/above the set actuating limit, the electromechanical relay in the device toggles its state.

Salient Features:

1. Under & Over Voltage Monitoring Devices are microprocessor-based designs that have automatic switching capability on any of the above (UV/OV) events.
2. Each device comes with potential free 1NO+1NC changeover contacts of the rating 10 A at the output.
3. Complete isolation of output from input.
4. Suitable to work with capacitor duty contactors.
5. Hysteresis of 4-5 volts is provided.
6. Under voltage & Over voltage actuating limits (settable) are operating voltage –15% & + 15% respectively unless otherwise specified (customization possible).
7. Actuating Delay= 1 sec.+/- 20% (Td2) (customization possible).
8. LED Indications on each of the events.
9. Reset Time= 1min +/- 20% (Td3) (customization possible).
10. On Time Delay= 1 min +/- 20% (Td1) (customization possible).
11. Repeat Accuracy < 1%.
12. Operating Temperature: -5C to +55C
13. Rated Insulation: 500 V, 50Hz