Omron F3SG-4SRB0720-25 Safety Light Curtain
Omron F3SG-4SRB0720-25 is a Safety Light Curtain providing 25 mm hand protection across a 720 mm protective height. Its protective field contains 36 infrared beams arranged with a 20 mm beam gap to detect opaque objects entering the guarded machine area. 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-4SRB0720-25 combines hand detection with 720 mm vertical coverage. For larger protected openings, browse extended hand protection safety curtains available through Omron industrial safeguarding products.

| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SG-4SRB0720-25 |
Omron F3SG-4SRB0720-25 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 | 36 Beams |
| Protective Height | 720 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: 74 mA max.; Receiver: 101 mA max. |
| Safety Outputs Ossd | PNP/NPN |
| Degree Of Protection | IP65 and IP67 |
| Net Weight | 6.7 kg |
The Omron F3SG-4SRB0720-25 Safety Light Curtain provides 25 mm hand detection across a 720 mm protective height. Its sensing field uses 36 infrared beams arranged with a 20 mm beam gap to detect opaque objects passing through the guarded opening. The specified sensing range is 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 74 mA for the emitter and 101 mA for the receiver. The enclosure carries both IP65 and IP67 protection ratings.
For selection, the F3SG-4SRB0720-25 should be evaluated by its 25 mm detection capability, 720 mm protective height, 20 mm beam spacing, operating distance, and PNP/NPN output format. These specifications determine how the sensing field fits the guarded access area. Greater vertical coverage can be selected while retaining the same hand-protection class and beam spacing. For a 960 mm configuration using 48 beams, see Omron F3SG-4SRB0960-25.


