SIEMENS 8WD4428-0BA Description Description SIEMENS SIGNALLING COLUMN AS-INTERFACE ELEMENT W/O EXTERNAL AUX. VOLTAGE, Related products SIEMENS 1FK6060-6AF71-1TA0 SIEMENS 1FT5072-0AC01-1-Z SIEMENS 1FN3300-4SA00-0AA0 SIEMENS 1FT5066-1AF71-4AA0 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FT5066-0AC01-2-Z
