Introduction
WDH-31-500 motor protection controller can provide up to 12 programmable switch inputs (dry {wet contact optional) 7 programmable relay outputs, all input and output have programmable functions, which can meet different protection control requirements on site. All protection functions can be set to check the alarm value and action value at the same time, and can be switched on and off separately. The protection parameters can be set by professionals according to the actual working conditions of the motor on site, so that power loss will not be lost.