The Omron F3SG-4SRA0240-14 is a Type 4 finger-protection light curtain from the F3SG-SR series, with a 14mm detection capability and a 240mm protective height. It uses 23 beams at a 10mm pitch to cover the field, rated for 0.3m to 10.0m operating range. Power is 24VDC, and the housing carries IP65/IP67/IP67G ingress protection — dust-tight, water-resistant, and oil-resistant, with an extra water-proofing grade for washdown zones.
The 14mm detection capability and 10mm beam pitch mean this curtain catches a finger-sized object — that's the difference between a safety stop and a pinch-point injury. The 240mm protective height covers a narrow access zone; if your opening is taller, you stack multiple units or step up to a larger model. The 0.3m minimum range means it won't false-trigger on close-in machine frames, but it also won't work as a presence sensor right at the emitter face — keep that 300 mm clearance in mind when mounting. Blanking and muting functions are built in. Blanking lets you block out fixed obstructions (brackets, chutes) without disabling the whole curtain; muting allows a workpiece to pass through without stopping the machine cycle. That saves you an external safety relay or PLC logic for common material-handling layouts.