The Omron F3SG-4SRA0280-25-F is an F3SG-SR series safety light curtain with a 25 mm detection capability, meaning it reliably detects a 25 mm object — typically a finger or hand — entering the protected zone. That 25 mm spec is the minimum object size the curtain sees, so it is rated for hand protection (per the listing) and suits applications where you need to stop machinery before an operator reaches a hazard point. With 14 beams on a 20 mm pitch, the curtain covers a 280 mm protective height. The operating range spans 0.3 m to 20.0 m, which covers most reach-in and perimeter guarding layouts without needing a secondary lens set. Power is 24 VDC, and the enclosure rating is IP65/IP67/IP67G — dust-tight, waterproof, and oil-resistant. The IP67G suffix means it withstands high-pressure washdown, so it is at home on food-and-beverage or washdown-capable lines where standard IP67 curtains might weep over time.
Integration Notes
The F3SG-4SRA0280-25-F supports blanking and muting functions. Blanking lets you ignore fixed obstructions (like a machine frame) within the field; muting temporarily suspends the safety output during a defined material pass-through cycle. Both are configured via the controller, not hardwired, so you can adjust them during commissioning without rewiring the safety relay logic. No derating curve is published in the spec table, but the full range is the rated window — stay inside it and the detection capability holds.