The Omron F3SJ-A0460P25-TS is a Type 4 safety light curtain from the F3SJ-A series, designed for hand protection on industrial machinery. Its 25 mm detection capability means it catches a finger or hand reaching into a hazard zone — that's the standard for point-of-operation guarding per IEC 61496. Twenty-three infrared beams at a 20 mm pitch create a 460 mm protective height, covering a typical small press brake or assembly station opening. The 0.2 m to 9.0 m operating range gives flexibility for both tight and extended reach applications. Runs on 24 VDC, which is standard for safety circuits in most control panels.
The 25 mm detection capability is the key spec for safety distance calculations per ISO 13855. It determines how far back from the hazard the curtain must be mounted to prevent a hand from reaching the danger zone before the machine stops. That distance drives the machine footprint and guarding layout. Blanking and muting functions are built in — blanking lets you ignore fixed obstructions (like a workpiece fixture) within the field, while muting temporarily suspends the curtain during a material pass. These are configurable features, not options you add later. The IP65 rating handles washdown but not high-pressure spray (IP66) or submersion (IP67).