G7J-4A-1-KM-12VDC G7J-4A-B G7J-4A-B 12VDC G7J-4A-B AC100/120 G7J-4A-B AC200/240 G7J-4A-B AC200/240 BY OMZ/C G7J-4A-B AC220V G7J-4A-B AC220V 继电器 G7J-4A-B AC24 G7J-4A-B AC50