3RH1921-1CA10 Description Description 3RH1921-1CA10 SIEMENS Auxiliary switch block Front Mounting Auxiliary Switch Block, 1 NO, S6 to S12 Related products SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FK6060-6AF71-1TA0 SIEMENS 1FK6032-6AK71-1TA0 SIEMENS 1FK6032-6AK71-1TG0 SIEMENS 1FK6060-6AF71-1TG0 SIEMENS 1FK7044-7AF71-1EG0