Omron F3SG-4SRB0400-25 Safety Light Curtain
Omron F3SG-4SRB0400-25 is a Safety Light Curtain providing 25 mm hand detection across a 400 mm protective height. Its optical field uses 20 infrared beams arranged with a 20 mm beam gap to detect opaque objects entering the protected machine opening. The operating 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 power supply and provides PNP/NPN safety outputs. Within the F3SG-SR Series, the F3SG-4SRB0400-25 combines 25 mm detection with 400 mm vertical coverage. For similar applications, compare 25 mm hand protection safety light curtains available across Omron industrial safety products.

| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SG-4SRB0400-25 |
Omron F3SG-4SRB0400-25 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 | 20 Beams |
| Protective Height | 400 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: 66 mA max.; Receiver: 98 mA max. |
| Safety Outputs Ossd | PNP/NPN |
| Degree Of Protection | IP65 and IP67 |
| Net Weight | 5.5 kg |
The Omron F3SG-4SRB0400-25 Safety Light Curtain provides 25 mm hand detection across a 400 mm protective height. Its sensing field contains 20 infrared beams positioned with a 20 mm beam gap to detect opaque objects passing through the protected 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, while PNP/NPN outputs provide the safety interface. Maximum current consumption is 66 mA for the emitter and 98 mA for the receiver. The enclosure carries IP65 and IP67 protection ratings.
For installation planning, the F3SG-4SRB0400-25 should be evaluated by its 25 mm detection size, 400 mm protective height, 20 mm beam gap, operating distance, and output type. Together, these specifications define the monitored machine opening and connection requirements. Where significantly greater vertical coverage is required, a taller model can retain the same hand-protection class and beam spacing. For a 1600 mm configuration using 80 beams, see Omron F3SG-4SRB1600-25.


