The Omron F3SG-4SRB0320-25 is a Type 4 safety light curtain from the F3SG-SR series, rated for hand protection with a 25 mm detection capability. It projects 16 beams at a 20 mm pitch over a 320 mm protective height, covering an operating range from 0.3 m to 20.0 m. Powered by 24 VDC, it carries IP65/IP67/IP67G ingress protection — dust-tight, waterproof, and oil-resistant — and operates from -30 °C to 55 °C.
The 25 mm detection capability and 20 mm beam pitch are the numbers that decide whether this curtain guards a hand-access zone or a finger-access zone — at 25 mm it's hand-only, so it fits applications like press brakes, assembly stations, and conveyor in-feed where a full hand must be detected before reaching the hazard. The 320 mm protective height matches a typical small-to-medium machine opening; if your guarding height needs to be taller, you'd step up to a longer model in the same series. The 20 m range covers most cell layouts, even with some optical alignment margin. IP65/IP67 means it can handle washdown environments; the IP67G suffix adds oil resistance, which matters around machining centers or hydraulic presses.
Integration notes
Blanking and muting functions are built in, which simplifies wiring — no external controller needed for these common machine-guarding scenarios. Blanking lets you ignore fixed obstructions (like a workpiece in the beam path), while muting temporarily suspends the curtain during a material pass. Both are configured via the controller or software, not by adding modules. The 24 VDC supply is standard for safety circuits; verify your power source can deliver the inrush without droop. Mounting brackets and alignment aids are available separately; the curtain's slim profile fits tight panel openings.