... WHZD-25A smart motor protector Main Function 1,Protect function:Overload,phase failuer,block,three ... switch off the motor working power supply(ZDS-1 type has current display).3,The said error ... current protect delayingtime on site Normal Service Condition 1,Altitude:not more than 1500m. 2,Ambi ... violent impace and vibration. Points For Attention 1,User should select the protector with correct corrent ...