Siemens 6ES5946-3UR21 Description Description Siemens Siemens 155 CPU Redundant Processor Related products SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK7060-5AF71-1FH3 SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FK6042-6AF71-1TH0 SIEMENS 1FK7022-5AK71-1DA0 SIEMENS 1FK7063-5AF71-1FG2
