In which applications are the undervoltage trip releases with early make contacts used?
This type of undervoltage trip release has the purpose of removing voltage from the coil of the release itself when the motor protection circuit breaker is in OFF position. Otherwise the coil would remain permanently powered even if with the machine is stopped. Turning off the power supply to the undervoltage trip release reduces unnecessary energy consumption and consequent heating, moreover, in some applications, it allows the power to be removed from
the auxiliary circuit connected in series to the undervoltage trip release (for example emergency buttons or limit switches).
Other information on this topic
Visit the website page dedicated to Undervoltage trip releases.
Visit the website page dedicated to Motor protection circuit breakers.
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