Omron F3SJ-A0870P55 Safety Light Curtain
The Omron F3SJ-A0870P55 Safety Light Curtain provides 55 mm leg and body detection across an 870 mm protective height for monitoring access to hazardous machine areas. Its protective sensing field consists of 18 infrared beams arranged with a 50 mm beam gap, creating optical coverage across the guarded opening. The light curtain operates from a 24 VDC power supply and uses an M12 8-pin connector for electrical integration with the machine safety system. Its larger detection capability is intended for identifying leg or body intrusion rather than finer hand or finger access. The F3SJ-A0870P55 belongs to the F3SJ Series and forms part of the 55 mm body protection light curtain range available within Omron machine safety products.
| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SJ-A0870P55 |
Omron F3SJ-A0870P55 Safety Light Curtain - Technical Specifications
| Specification | Value |
|---|---|
| Application | Leg/body protection |
| Object Resolution | Opaque objects |
| Detection Capability | 55 mm dia. |
| Beam Gap | 50 mm |
| Number Of Beams | 18 Beams |
| Protective Height | 870 mm |
| Lens Size | 5 mm |
| Operating Range | 0.2 to 9 m |
| Connection Method | M12 Connector 8-pin |
| Light Source | Infrared LED (870 nm) |
| Startup Waiting Time | 2 s max. |
| Power Supply Voltage | 24 VDC ±20% (ripple p-p10% max.) |
| Current Consumption | Emitter: 76 mA max.; Receiver: 68 mA max. |
| Safety Outputs Ossd | Two PNP transistor outputs Load current: 300 mA max. Residual voltage: 2 V max. Capacitive load: 2.2 µF Leakage current: 2 mA max. |
| Auxiliary Output Non Safety Output | One PNP transistor output Load current: 300 mA max. Residual voltage: 2 V max. Leakage current: 1 mA max. |
| Protective Circuit | Output short-circuit protection, and power supply reverse polarity protection |
| Insulation Resistance | 20 M? min. (at 500 VDC) |
| Ambient Temperature | Operating: -10 to 55°C (no icing), Storage: -30 to 70°C |
| Ambient Humidity | Operating: 35% to 85% (no condensation), Storage: 35% to 95% |
| Degree Of Protection | IP65 (IEC 60529) |
| Materials | Case: Aluminum, Zinc diecast Front window: PMMA resin (acrylic) Caps: ABS resin Cable: Oil-resistant PVC |
The Omron F3SJ-A0870P55 is a F3SJ Safety Light Curtain designed for use in machine guarding, access protection, and point-of-operation safety around conveyors, presses, and automated lines. It is usually evaluated together with related models such as Omron F3SJ-B0385P25 (Hand protection, 20 mm beam gap, 18 beams, 385 mm protective height) when engineers are matching safety light curtains to application risk levels and space constraints. Reviewing application type, beam gap, number of beams, protective height, and connection method makes it easier to select the right curtain for finger protection, hand detection, or body protection zones along the machine. The F3SJ-A0870P55 integrates cleanly with safety relays, controllers, and emergency circuits where a reliable Omron Safety Light Curtain is required.
