... 3.apply to air compressor WHZD-25A smart motor protector Main Function 1,Protect function:Overload,phase failuer,block, ... , including ac contactor, air pressure switch, magnetic starter, motor protector, starter delta starter, oil level controller etc. We mainly export ... -America, South-America, Southeast Asia, Africa, Mid-east, Western Europe, East Asia etc. We emphasize good quality and best service ...