Under-voltage monitoring relay TCV-H series

over-voltageDPCOAC/DC

- LED indicators for power supply,contact and reaction timer On the application of the supply voltage the output relay pulls in and the timing period ts starts. Voltage monitor with no latch (auto reset) function At the end of ts. when the measured voltage exceeds the set point (Hyst), the timing period tr starts. At the end of tr, if the measured value still exceeds the set point the output relay changes over. The output relay resets immediately when the measured voltage reaches the hysteresis set value. Voltage monitor with latch (manual reset) function. At the end of ts. when the measured voltage exceeds the set threshold, timing period tr starts. At the end of tr if the measured value still exceeds the set point the output relay changes over and remains in this condition, even when the measured voltage reaches the hysteresis set value. An external reset (S1) must be operated to reset the relay. supply voltage variation - nominal voltage +10% / -15% frequency range - 48 - 63 Hz duty cycle - 100% start surge delay - 0- 10s reaction time - 0 - 5s reset time - < 100ms