Siemens 6EC1221-OA Description Description Siemens SIMATIC MODULE Related products SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK6032-6AK71-1TA0 SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FK7083-5AF71-1EB3 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK7042-5AK71-1FB0
