What this light curtain does on the line
The Omron F3SG-4SRA0880-45 is an active-production safety light curtain from the F3SG-SR series, built for arm and foot protection with a 45 mm detection capability and an 880 mm protective height. It runs on 24 VDC and covers an operating range from 0.3 m out to 20.0 m, so it fits both tight machine guarding and wider access zones. The 40 mm beam pitch and 22 beams give you a solid detection field without oversampling the controller inputs.
The 45 mm detection capability is the key number for personnel safety — it catches a hand or arm at the defined range, not just a torso. The 880 mm protective height covers a typical vertical zone for a machine access point; if your opening is taller, you stack multiple units. IP65/IP67/IP67G means it handles washdown environments and oil mist, with the G suffix indicating resistance to cutting oils common in machining cells.
Mount the emitter and receiver aligned within the specified beam pitch tolerance — the 40 mm pitch means the brackets need to hold both ends parallel within a few degrees to avoid nuisance trips. The 24 VDC supply is standard for safety circuits; verify the power source can deliver the inrush without droop. The bulk package means the unit ships as a single assembly, not a kit, so plan for separate mounting hardware if your panel uses non-standard brackets.