The Siemens 3SF7844-8MB24-0SS1 is a Type 4 safety light curtain receiver from the SIMATIC FS450i series, specified for point-of-operation guarding where 14 mm resolution is required — that resolution catches fingers reaching into the hazard zone (finger-protection class per IEC 61496-1). The 1650 mm protective height covers a tall opening, and the 0 to 6 m operating range gives flexibility in machine layout. Muting capability is built in, so it can temporarily suppress the safety output during a material pass-through without tripping the machine.
Integration Notes
This receiver communicates via PROFIsafe bus connection, designed for integration with a SIMATIC FS450i safety controller. The 14 mm resolution and muting function suit applications like assembly stations, packaging lines, or robotic cells where a guarded area must be temporarily bypassed for material flow. Mounting hardware and alignment procedure follow standard light-curtain practice; the 1650 mm height typically requires a rigid support structure to maintain optical alignment over the full range.