Omron F3SG-4SRB1520-25 Safety Light Curtain
Omron F3SG-4SRB1520-25 is a Safety Light Curtain designed for 25 mm hand protection across a 1520 mm protective height. Its sensing field contains 76 infrared beams arranged with a 20 mm beam gap to monitor opaque objects entering a tall guarded machine opening. The sensing range is specified at 0.3 to 20.0 m or 0.3 to 7.0 m depending on configuration. It operates from a SELV/PELV 24 VDC supply and provides PNP/NPN safety outputs. Within the F3SG-SR Series, the F3SG-4SRB1520-25 provides extended hand-protection coverage. For taller access zones, compare extended-height machine safety light curtains available across Omron industrial safety products.

| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SG-4SRB1520-25 |
Omron F3SG-4SRB1520-25 Safety Light Curtain - Technical Specifications
| Specification | Value |
|---|---|
| Application | Hand protection |
| Object Resolution | Opaque objects |
| Detection Capability | 25-mm dia |
| Beam Gap | 20 mm |
| Number Of Beams | 76 Beams |
| Protective Height | 1520 mm |
| Lens Size | 6.7 × 4.5 mm (W × H) |
| Operating Range | 0.3 to 20.0 m, 0.3 to 7.0 m |
| Light Source | Infrared LEDs, Wavelength: 870 nm |
| Startup Waiting Time | 3 s max. |
| Power Supply Voltage | SELV/PELV 24 VDC±20% (ripple p-p 10% max.) |
| Current Consumption | Emitter: 93 mA max.; Receiver: 107 mA max. |
| Safety Outputs Ossd | PNP/NPN |
| Degree Of Protection | IP65 and IP67 |
| Net Weight | 9.7 kg |
The Omron F3SG-4SRB1520-25 Safety Light Curtain provides 25 mm hand detection across a 1520 mm protective height. Its sensing field contains 76 infrared beams arranged with a 20 mm beam gap to monitor opaque objects entering a tall guarded machine opening. The operating range is specified at 0.3 to 20.0 m or 0.3 to 7.0 m depending on configuration. A SELV/PELV 24 VDC ±20% supply powers the unit, and PNP/NPN outputs provide the safety-system interface. Maximum current consumption is specified at 93 mA for the emitter and 107 mA for the receiver. The enclosure carries both IP65 and IP67 protection ratings.
For selection, the F3SG-4SRB1520-25 should be evaluated by its 25 mm detection size, 1520 mm protective height, 20 mm beam spacing, sensing range, and PNP/NPN output configuration. These parameters define the extended vertical field available for hand-level machine access protection. A shorter model can be selected where the guarded opening does not require the full 1520 mm height while maintaining the same beam spacing and detection class. For a 640 mm configuration with 32 beams, see Omron F3SG-4SRB0640-25.


