Omron F3SG-4SRB0640-25 Safety Light Curtain
Omron F3SG-4SRB0640-25 is a Safety Light Curtain designed for 25 mm hand protection across a 640 mm protective height. Its sensing field uses 32 infrared beams arranged with a 20 mm beam gap to detect opaque objects entering the monitored machine opening. The sensing distance is specified at 0.3 to 20.0 m or 0.3 to 7.0 m depending on configuration. A SELV/PELV 24 VDC supply powers the unit, while PNP/NPN outputs provide the safety interface. Within the F3SG-SR Series, the F3SG-4SRB0640-25 provides extended hand-detection coverage. For different vertical protection needs, explore 640 mm machine safety light curtains from Omron industrial safety products.

| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SG-4SRB0640-25 |
Omron F3SG-4SRB0640-25 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 | 32 Beams |
| Protective Height | 640 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: 72 mA max.; Receiver: 100 mA max. |
| Safety Outputs Ossd | PNP/NPN |
| Degree Of Protection | IP65 and IP67 |
| Net Weight | 6.4 kg |
The Omron F3SG-4SRB0640-25 Safety Light Curtain provides 25 mm hand protection across a 640 mm protective height. Its protective field consists of 32 infrared beams positioned with a 20 mm beam gap to detect opaque objects entering the guarded machine opening. The operating distance 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 ±20% supply and provides PNP/NPN safety outputs. Maximum current consumption is 72 mA for the emitter and 100 mA for the receiver. The enclosure carries IP65 and IP67 ratings.
When choosing the F3SG-4SRB0640-25, the 25 mm detection capability, 640 mm protective height, 20 mm beam spacing, sensing range, and output configuration should be considered together. These specifications define both the protected vertical area and safety-system interface. A shorter model can be selected where the guarded machine opening requires less vertical coverage. For a 320 mm hand-protection configuration with 16 beams and the same 20 mm beam gap, see Omron F3SG-4SRA0320-25.


