... 3.apply to air compressor WHZD-25A smart motor protector Main Function 1,Protect function:Overload,phase failuer,block, ... vibration. Points For Attention 1,User should select the protector with correct corrent accrding to the ratdc current of the ... , including ac contactor, air pressure switch, magnetic starter, motor protector, starter delta starter, oil level controller etc. We mainly export ...