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.

Check out our video

Check out our video tutorials

Video
Video
Video
Video
Video
Video
Video