If youβre not fully sure about F3SJ-A2370N55, taking a closer look at Omron Photoelectric Sensor, Omron F3Sj B0625P25 and Omron Sensors often helps compare reliability, cost, and availability.
Omron F3SJ-A2370N55 Safety Light Curtain
The Omron F3SJ-A2370N55 Safety Light Curtain provides Leg/body protection with a 50 mm beam gap, 48 axis beam, and a 2370 mm protective height for precise detection in safety-critical applications. Designed with a NPN output configuration, it utilizes a Infrared LED (870 nm) light source and a 5 mm lens diameter for accurate sensing and dependable operation. Equipped with a M12 Connector 8-pin connection for fast installation, it operates on 24 VDC power supply voltage to ensure stable and consistent performance. Manufactured by Omron, part of the Omron Safety Light Curtain range, available under the Omron F3SJ Series.

| Brand | Omron |
| Product Type | Safety Light Curtain |
| Model Number | F3SJ-A2370N55 |
Omron F3SJ-A2370N55 Safety Light Curtain - Technical Specifications
| Specification | Value |
|---|---|
| Application | Leg/body protection |
| Detection capability | Opaque objects |
| Beam Gap | 50 mm |
| Number of Beams | 48 axis beam |
| Protective Height | 2370 mm |
| Output | NPN |
| Lens Diameter | 5 mm |
| Operating Range | 0.2 to 9 m |
| Response time (Normal mode) ONβOFF | 13 ms |
| Response time (Normal mode) OFFβON | 52 ms |
| Connection method | M12 Connector 8-pin |
| Light source | Infrared LED (870 nm) |
| Startup waiting time | 2 s max. |
| Power Supply Voltage | 24 VDC |
| Current Consumption | Receiver: 68 mA max.; Emitter: 76 mA max. |
| Control output (OSSD) | Two NPN transistor outputs Load current: 300 mA max. Residual voltage: 2 V max. Capacitive load: 2.2 Β΅F Leakage current: 2 mA max. |
| Auxiliary output (non-safety output) | One NPN transistor output Load current: 300 mA max. Residual voltage: 2 V max. Leakage current: 1 mA max. |
| Protective Circuit | Output short-circuit protection Power supply reverse polarity protection |
| Insulation resistance | 20 MΞ© min. (at 500 VDC) |
| Ambient temperature | Operating: -10 to 55Β°C (no icing), Storage: -30 to 70Β°C |
| Ambient humidity | Operating: 35% to 85% (no condensation), Storage: 35% to 95% |
| Ambient illuminance | Incandescent lamp: 3000 lx max. Sunlight: 10000 lx max. |
| Degree of Protection | IP65 (IEC 60529) |
| Materials | Case: Aluminum, Zinc diecast Front window: PMMA resin (acrylic) Caps: ABS resin Cable: Oil-resistant PVC |
| Weight | Main Unit: Approx. 3.3 kg Package: Approx. 5.9 kg |
The Omron F3SJ-A2370N55 is a F3SJ Safety Light Curtain commonly used in guarding, access detection, and protected-zone monitoring around automated machinery, conveyors, assembly modules, and packaging lines. It is often evaluated together with related models such as Omron F3SJ-A0623P14 (Finger protection, 9 mm beam gap, 68 axis beams, 623 mm protective height, PNP output, M12 Connector 8-pin), Omron F3SJ-A0875P14 (Finger protection, 9 mm beam gap, 96 axis beams, 875 mm protective height, PNP output, M12 Connector 8-pin), and Omron F3SJ-A0731N14 (Finger protection, 9 mm beam gap, 80 axis beams, 731 mm protective height, NPN output, M12 Connector 8-pin) when engineers compare optical resolution, protective height, and wiring compatibility for specific machine layouts. Considering application type, beam gap, number of beams, protective height, output configuration, and connection method helps ensure proper selection for finger, hand, or body protection categories.




