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THE MOTOR SAVER-PHASE MONITOR

Model 250A is an auto ranging voltage monitor designed to protect 3-phase

motors regardless of size. It is used on 190-480VAC, 50 to 60 Hz motors to

protect the motors from damage caused by single phasing, low voltage,

phase reversal, voltage unbalance, and also high voltage. Added features

include the DPDT contacts that are used to perform two functions when

parameters are exceeded in addition to the standard adjustable restart delay.