The Omron F3SJ-A0305P20-TS is a type-4 safety light curtain from the F3SJ-A series, designed for finger and hand protection on access points and hazardous zones. Its 20mm detection capability means it reliably detects a 20mm-diameter object anywhere in the field — that is finger-protection class per IEC 61496-2, so it catches a hand or fingers reaching into a press, robot cell, or conveyor infeed before the machine can cycle. The 15mm beam pitch and 20 beams give it a 305mm protective height, which covers the typical reach zone for a standing operator at a machine opening.
Deployment context
The 0.2m to 9.0m operating range covers both short-reach guarding (0.2m minimum) and longer spans across a 9m opening, so it fits a range of machine sizes without needing a different model. Powered by 24VDC, standard for safety circuits; integrates into a safety-rated PLC or safety relay via the OSSD outputs.
Built-in flexibility
Includes blanking and muting function as standard features. Blanking lets you optically bypass fixed obstructions (like a machine frame member) within the field without disabling the entire curtain. Muting allows the curtain to be temporarily overridden during a material pass-through cycle — essential for conveyor-fed stations where a pallet or workpiece must enter the guarded zone without stopping the line. Both are configurable without an external controller on this model.