G5NB-1A-E-18VDC G5NB-1A-E-24 G5NB1AE24DC G5NB-1A-E24DC G5NB-1A-E-24V G5NB-1A-E-24V 通信继电器 G5NB-1A-E-24VC G5NB-1A-E-24VDC G5NB-1A-E-24VDC(N)(A) G5NB-1A-E-48VDC