AS-Interface enclosure with 2 slaves — what the ratings mean for fit
The Siemens 3SF5813-4DG05 is an AS-Interface enclosure for command devices — a field-mounted junction that brings pushbuttons, selector switches, or pilot lights onto the AS-i bus without a separate I/O block. It carries two AS-i slaves, each configured as an A/B slave with 4 inputs and 3 outputs (4I/3O) per the design specification. That means this single enclosure can handle up to 8 digital inputs and 6 digital outputs across the two slaves, enough for a small operator station with status feedback. The housing is rated IP65, so it withstands washdown and dust ingress — suitable for food-and-bev lines, washdown zones, or outdoor enclosures where a standard panel-mount station would need a separate enclosure. The plastic grey housing with a rectangular front shape accepts 22 mm round mounting holes for standard 22 mm command devices (pushbuttons, selector switches, pilot lights). Three control points are provided, shipped with sealing plugs — you populate them with your own 22 mm devices. Electrical connection is via insulation-displacement terminals on top, which means no screw terminals to torque — strip the AS-i flat cable and press it into the IDC slot. The slave type is A/B, so it works on both standard AS-i networks (version 2.1 and 3.0) and extended addressing modes. Operating temperature range is -25 to +70 °C, storage -40 to +80 °C. Vibration resistance per IEC 60068-2-6 is 5g over 20–200 Hz.
Mounting and integration notes
The enclosure mounts vertically and is designed for floor mounting — typically on a machine base or a wall-mounted panel, not a DIN rail. Dimensions are 154 mm high, 85 mm wide, 64 mm deep. The 64 mm depth is the body only; add clearance for the AS-i cable entry on top and the 22 mm devices protruding from the front. The insulation-displacement terminals on top accept the standard AS-i flat cable (yellow for data/power, black for auxiliary power if used). No pre-wired strip terminal is included; you terminate the cable in the field.
Compliance and documentation
The part carries a substance prohibitance date of 07/01/2006, which aligns with the EU RoHS directive (RoHS 1) — the product is compliant with the original RoHS requirements. No UL, CSA, or CE listing is explicitly stated in the evidence, but as a Siemens industrial product sold into the EU market, CE marking for the AS-i bus standard (EN 50295) is expected. For specific compliance documentation (declaration of conformity, REACH, UL file number), request it with the RFQ — it is typically available from Siemens Industry Online Support.