SIEMENS 6DD1611-0AD0 Description Description SIEMENS SIMADYN D MAILBOX MM11 L- AND C-BUS , EACH 64KB RAM Related products SIEMENS 1FK6042-6AF71-1TH0 SIEMENS 1FK7042-5AK71-1FB0 Quick View 6SL3120-1TE32-0AA4 SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FN3300-4SA00-0AA0 SIEMENS 1FN1910-0AA20-1AA0