Average lifespan of selec 900VPR-2-280/520V digital phase failure relay?

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  • 2 months ago
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    A phase failure relay should have a life of ~20 years.

  • 2 months ago

    LAST FOREVER, BECAUSE THIS RELAY MIGHT NOT EVER ACTIVATE IN SYSTEM SINCE THIS IS JUST FOR THE UNEXPECTED EVENT HAPPENS IN POWER SOURCE, OR IT MIGHT ACTIVATE A FEW TIMES YEARLY.

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