G6KU-2G-Y DC12 G6KU-2G-Y DC3 G6KU-2G-Y DC4.5 G6KU-2G-Y DC5 G6KU-2G-Y-12V G6KU-2G-Y-12VDC G6KU-2G-Y-24V G6KU-2G-Y-24VDC G6KU-2G-Y-3V G6KU-2G-Y-3V 通信继电器