Sick WS/WE12L-2N410AO4 Photoelectric Sensor
The Sick WS/WE12L-2N410AO4 photoelectric sensor provides 80 m sensing range, NPN output, and 2,500 Hz switching frequency for industrial automation applications, while the Sick WS/WE12L-2N410AO4, known as the Sick 80m NPN Through-beam Sensor, belongs to Sick photoelectric sensors and the W12 series, featuring through-beam principle, laser light source, 10–30 V DC supply, 200 µs response time, M12 4-pin connector, IP67/IP69K protection, and rectangular metal housing.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WS/WE12L-2N410AO4 |
Sick WS/WE12L-2N410AO4 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Through-beam photoelectric sensor |
| Functional principle detail | - |
| Sensing range max. | 0 m ... 80 m |
| Sensing range | - |
| Polarisation filters | - |
| Light source | Laser |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 0.5 mm (1.5 m) |
| Wave length | 650 nm |
| Adjustment | None |
| Angle of dispersion | - |
| Special applications | Detecting small objects, Detection of objects moving at high speeds |
| Items supplied | - |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | ≤ 45 mA |
| Protection class | III |
| Digital Output type | NPN |
| Switching mode | Light switching, Dark switching |
| Signal voltage PNP HIGH/LOW | Uv - < 2.9 V, Uv V / 0 V <= 1.5 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 200 µs 4) |
| Switching frequency | 2,500 Hz 5) |
| Output function | Complementary |
| Special feature | - |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15 mm x 49 mm x 41.5 mm |
| Connection | Male connector M12, 4-pin |
| Housing material | Metal |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP69K |
| Ambient operating temperature | –10 °C ... +50 °C |
| Ambient temperature, storage | –25 °C ... +75 °C |
| Weight | 260 g |
The Sick WS/WE12L-2N410AO4 photoelectric sensor, also referred to as the Sick 80m NPN Through-beam Sensor, is designed for long-distance object detection in industrial automation systems. It offers a 80 m sensing range, NPN output, and 2,500 Hz switching frequency for reliable performance. As part of the W12 series, the Sick WS/WE12L-2N410AO4 uses a through-beam principle to ensure stable detection across extended industrial setups.
The Sick WS/WE12L-2N410AO4 photoelectric sensor is used in conveyors, large-scale packaging lines, assembly systems, and material handling applications. Its long sensing range supports accurate detection across wide industrial layouts. The sensor ensures stable switching output, supporting precise automation control. With its compact rectangular design and M12 connector, the Sick WS/WE12L-2N410AO4 integrates effectively into industrial environments.
The Sick WS/WE12L-2N410AO4 photoelectric sensor combines extended sensing capability with durable industrial construction. With features such as fast response time, stable output, and IP69K protection, it supports continuous operation in demanding environments. As part of the Sick W12 series, it ensures compatibility with standard automation systems. The Sick WS/WE12L-2N410AO4 is suitable for applications requiring long-range detection, reliable switching, and consistent performance.

