... 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 ... Industrial Zone, North Liu Shi Town,Yueqing City, Zhejiang Province, China 325604TEL: +86-0577-27873126 FXA: +86-0577-27873127E-mail: ...