AS-Interface slave with pushbutton — 4 inputs, 3 outputs, IP65
The Siemens 3SF5812-0DB00 is an AS-Interface A/B slave packing 4 inputs and 3 outputs in a rectangular IP65 enclosure, with a two-point pushbutton actuator on the front. Rated at 30 V DC on the AS-i bus, it's built for floor-mount or vertical panel installation — the 22 mm mounting diameter and plastic housing keep it light and corrosion-resistant on washdown lines or dry-area cabinets alike.
What the ratings mean for fit
The 30 V DC bus voltage is standard AS-Interface power — the slave draws its operating and I/O power from the yellow AS-i cable, no separate supply needed. IP65 means the enclosure and the pushbutton seals handle hose-down cleaning, so it's at home on food, beverage, or packaging lines where washdown is routine. The -25 to +70 °C operating range covers most factory-floor conditions; storage tolerance down to -40 °C is useful for unheated warehouses or cold-chain staging areas. Two switching elements and two command points (black/white actuator colors) give you a dual-action station — one pushbutton per function, or a two-step sequence from a single enclosure. No emergency-stop or positive-opening function here, so it's for standard signaling, not safety circuits.