The Omron F3SG-4SRB1520-45 is a type-4 safety light curtain from the F3SG-SR series, rated for arm and foot protection with a 45 mm detection capability. That 45 mm beam pitch and 38 beams give it a 1520 mm protective height — sized for guarding a full vertical access zone on a machine cell or conveyor infeed. Operating range spans 0.3 m to 20.0 m, so it handles both close-in pick stations and longer corridor-style perimeters without a separate lens set. Supply is 24 VDC, standard for safety circuits. The IP65/IP67/IP67G rating means it is dust-tight, water-resistant, and rated against oil and submersion — the G suffix indicates additional oil resistance, a useful margin for machining centers or washdown zones where coolant mist is present. Blanking and muting functions are built in, so partial obstruction during a workpiece pass-through does not trip the machine, and muting can be configured for conveyor hand-off zones without an external controller.
Installation Notes
Mounting brackets and alignment tools are typically ordered separately; the light curtain itself ships as a bulk unit — emitter and receiver pair, no mounting hardware in the box. The 40 mm beam pitch means the resolution is appropriate for finger/hand detection at closer range, but at 45 mm detection capability it is officially classified for arm/foot protection per IEC 61496. For hand detection down to 14 mm, step up to the F3SG-4R series with finer pitch.