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Are we having problems with the 8430MPSV24 phase failure relay? Customer has 2 that will not pick up.

Suggest he reverse 2 of the inputs. The relay is sensitive to phase reversal and you have a 50% chance when you wire it up that the phases are in the correct rotation. Even when the phases are marked, unless someone has tested the phases with a phase rotation meter, they are marked at random.

CTA-ID : 5413
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