The Omron F3SG-4SRB1600-25-K is a Type 4 safety light curtain from the F3SG-SR series, designed for machine guarding applications where reliability and washdown resistance are critical. It provides a protected height in the 1501–2000 mm range with a 25 mm minimum object resolution, detecting fingers and small parts entering the hazardous zone. Two PNP/NPN-selectable safety outputs (300 mA at 24 VDC) and one auxiliary output (100 mA at 24 VDC) give flexibility for interfacing with safety relays or safety PLC inputs. The operating range spans 0.3 to 16.0 meters typical, with a maximum of 24.0 meters under ideal conditions.
The IP69K rating means this light curtain withstands high-pressure, high-temperature washdowns common in food, beverage, and pharmaceutical lines — standard IP67 won't hold up to those cleaning cycles. If your cell sees caustic wash or steam cleaning, this is the enclosure spec that matters. Fixed and floating blanking are both supported, allowing you to ignore stationary objects (like a conveyor frame) or small moving obstructions within the field without disabling the safety function. Reduced resolution also lets you relax detection for larger parts passing through, though the 25 mm base resolution stays the minimum detectable object size. Configuration is via DIP switches or the SD Manager 3 software tool, so you can set blanking zones and resolution on the bench without a PC, or make detailed adjustments through the software for more complex guarding patterns.
Because it is a non-cascadable basic type, this model is intended for standalone guarding zones. If your application requires daisy-chaining multiple light curtains, you would need the cascadable variant from the same series. For this single-zone machine guard, the F3SG-4SRB1600-25-K is a direct fit.