... .Adopt Kelvin terminal, which easily be connectedNew style overheat disconnected protection device :for the multi-piece products, adopt overheat separately disconnected, indication ... functions:output contactor, alarm, lightning counter2.2.5 According to protection mode: connect to the ground with same line, L1,L2 ... ,180V-,150,300,345,385 V~·Test by classified II ·Protection level UP 0.5,0.8 ,1.5 ,1.8 ...