What the 25 mm detection capability means for your guarding application
The Omron F3SJ-E1025P25 is a Type 4 safety light curtain with a 25 mm detection capability, which means it is rated for hand protection per IEC 61496-1/2. A 25 mm detection zone catches fingers reaching into the hazard area — the standard threshold for hand/finger detection is 14 mm for finger protection, while 25 mm is the industry benchmark for hand protection. This part covers a 1025 mm protective height with 50 beams spaced at a 20 mm pitch, so it guards a vertical zone just over a meter tall against hand intrusion.
Operating range and environmental fit
The sensing range spans 0.2 m to 7.0 m, which covers most machine-guarding distances from close-in press brakes to wider conveyor access points. The IP65 rating means the emitter and receiver housings are dust-tight and protected against water jets — suitable for washdown environments in food processing or machining lines where coolant mist and hose-down cleaning are routine.