SIEMENS 6ES7221-1EF22-0XA0 Description Description SIEMENS SIMATIC S7-200, EM 221 DIGITAL INPUT MOD., OPTICALLY ISOLATED 8DI, 120/230V AC, Related products SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FK6060-6AF71-1TA0 SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FT5066-0AC01-2-Z SIEMENS 1FK6032-6AK71-1TA0
