G4A-1A-PE-18VDC G4A1APE24DC G4A-1A-PE-24V G4A-1A-PE-24V 通信继电器 G4A-1A-PE-24VDC G4A-1A-PE-48VDC G4A1APE5DC G4A-1A-PE-5V G4A-1A-PE-5VDC G4A-1A-PE-CF DC12