AS-i Connection Element for Harsh Environments
The Siemens 3SF5900-2CD is a metal connection element designed to interface AS-i M12 fieldbus cabling with an AS-i enclosure, supporting 4 to 6 control points through a single M25 gland entry. Its IP67 rating means the housing and M12 connector withstand washdown, dust ingress, and oil mist — suitable for food-and-bev, automotive body shops, and packaging lines where coolant or sanitizer sprays are routine. Rated for ambient operation from -25 to +70 °C, this part handles freezer-zone conveyors and hot-side machine cabinets without derating. The direct-mounting fastening method means it bolts to the enclosure wall or bracket; no DIN rail is involved, so panel layout must reserve a flat mounting surface with M25 clearance.
Compliance & Documentation
RoHS compliance date is recorded as 07/01/2006, meaning the part was transitioned to the EU RoHS directive before that date. The reference code per IEC 81346-2 is X (connection element), which helps panel builders tag this component in electrical schematics and BOM exports.