... Circuit Control,At Present, Widely Applies To The Single-Phase Mechanical Device Main Circuit As Well As The Single-Phase Air ... Undulation, Impact And Vibration Place.3 .Main Technical Parameter a. Contactor Coil Picking Up In 75% ~ 110% Us ReliablyWorking, Its ... You Purchase Right, Please Read The Specify Type Before Order.Contactor Specification Model, Pole Number, Coil Control Voltage, Rating Of ...