What this light curtain does and where it fits
The Omron F3SJ-A1995P30 has a 30 mm detection capability for hand/arm protection. It uses 80 beams at a 25 mm pitch to cover a 1995 mm protective height. Operating range runs from 0.2 m to 7.0 m, which covers most machine guarding distances without needing a separate lens set. The 24 VDC supply is standard for safety circuits, and the IP65 rating means the housing and optics handle washdown spray — fine for food processing or automotive assembly lines where hoses come out between shifts.
What the 30 mm detection rating means for fit
30 mm detection capability is the smallest object the curtain reliably sees — anything smaller passes through undetected. That's the standard hand/arm protection class per IEC 61496-2, so it's suitable for guarding access where a hand might reach into a press, a robot, or a packaging machine. If you need finger protection (14 mm), this isn't the model; if the risk assessment calls for hand/arm, this is the right spec.