UNDER & OVER VOLTAGE RELAY WITH S.CONTACT 415V

The NUOV-N monitors under and over voltage of 3Ph 4-wire mains. It has two adjustable settings of : 415VAC - 192 to 252VAC for under voltage and 228 to 288 VAC over voltage. 200VAC - 92 to 121VAC for under voltage and 109 to 138 VAC over voltage. 110VAC - 51 to 67VAC for under-voltage and 61 to 77 VAC for over voltage. The relay trips if the voltage of the monitored mains drops below or rises above the respective preset points. There are 2 separate sets of contacts; one for under voltage (9-8-7) and one for over voltage (3-5- 6) trip controls. There are also 2 green LEDs to indicate the under and over normal voltage conditions and 1 red LEDs to indicate trip condition.

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