The F3SG-4SRB0280-25-F is an Omron F3SG-SR series light curtain rated for hand protection with a 25 mm detection capability. It uses 14 beams at a 20 mm pitch to cover a 280 mm protective height, with an operating range from 0.3 m to 20 m. Supply is 24 VDC, and the enclosure carries IP65, IP67, and IP67G ratings — dust-tight, water-resistant, waterproof, and oil-resistant. The unit includes blanking and muting functions built in.
The 25 mm detection capability means this curtain catches a finger or tool tip passing through the field — it is sized for hand and finger proximity, not full-body presence sensing. The 280 mm protective height suits it for guarding a single access point like a machine loading zone or a robot cell entry. Blanking lets you mask fixed obstructions (e.g., a conveyor rail) inside the field without disabling the whole curtain; muting suspends the safety output during a defined material pass-through cycle, common on automated assembly lines. Both features are configured at install, not added later.
Mounting the F3SG-4SRB0280-25-F: the 280 mm column aligns with the guarded opening height. The 0.3 m minimum range means the emitter and receiver can sit close to the machine frame — no dead zone in tight spaces. The IP67G rating (oil-resistant) holds up in machining environments where coolant mist is present. Wiring is 24 VDC; verify the safety controller accepts the OSSD outputs (two-channel, typically 24 V sourcing). The blanking and muting functions are set via the teach-in procedure using the control box or software — no physical jumpers.