What this light curtain does and where it fits
The Omron F3SJ-A0965P20 is a Type 4 safety light curtain from the F3SJ-A series, built for point-of-operation guarding where a 20 mm detection capability is required — that means it catches fingers reaching into the hazard zone (finger-protection class per IEC 61496). Its 15 mm beam pitch and 64 beams give a 965 mm protective height, so it guards a vertical aperture just under a metre tall — sized for a standing operator's reach zone on a press, assembly station, or packaging machine. Rated range is 0.2 m to 9.0 m, which covers most machine guarding distances from close-in to across a small cell. The 24 VDC supply is standard for safety circuits; IP65 means the housing and optics handle washdown without a secondary enclosure — food-and-bev or wet machining lines are fine. Built-in blanking and muting functions let the curtain ignore fixed obstructions (like a fixture arm) or automatically bypass during a material pass-through, so you don't need an external safety controller for those logic moves.