Sick WL4SLG-3F7254H Photoelectric Sensor
The Sick WL4SLG-3F7254H Photoelectric Sensor provides 0–2.2 m sensing range using autocollimation with a laser visible red light source. It supports PNP dark switching, ≤0.5 ms response time, and features stainless steel V4A housing suitable for hygienic and washdown zones. The slim rectangular design, M8 connector, and IP66/67/68/69K enclosure ensure reliable detection of transparent and small objects. Explore Sick, view Photoelectric Sensors, and learn about the W4 Series.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WL4SLG-3F7254H |
Sick WL4SLG-3F7254H Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0 m ... 3.5 m 2) |
| Sensing range | 0 m ... 2.2 m 2) |
| Light source | Laser 3) |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 0.4 mm (60 mm) |
| Wave length | 650 nm |
| Adjustment | Cable, Single teach-in button 4) |
| Special applications | Hygienic and washdown zones, Detecting transparent objects, Detecting small objects |
| Housing design | Hygiene 5) |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp 2) |
| Current consumption | 30 mA 3) |
| Protection class | III |
| Digital Output type | PNP 4) |
| Switching mode | Dark switching 4) |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 0.5 ms 5) |
| Switching frequency | 1,000 Hz 6) |
| Housing | Rectangular |
| Design detail | Slim |
| Dimensions (W x H x D) | 15.3 mm x 63.2 mm x 22.2 mm |
| Connection | PVC Cable, 150 mm length with M8 male connector, 4-pin 2) |
| Housing material | Stainless steel, Stainless steel V4A (1.4404, 316L) |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66, IP67, IP68, IP69K |
| Ambient operating temperature | –10 °C ... +50 °C |
| Ambient temperature, storage | –30 °C ... +70 °C |
| Weight | 140 g |
The Sick WL4SLG-3F7254H Photoelectric Sensor combines 0–2.2 m sensing range, autocollimation, and a laser red light source to deliver accurate retro-reflective detection. As part of the Sick W4 Series, it is designed for demanding industrial environments requiring stable detection of transparent and small objects. The stainless steel V4A housing, IP69K rating, and ≤0.5 ms response time support continuous use in hygienic and washdown applications.
The Sick WL4SLG-3F7254H Photoelectric Sensor is suitable for conveyors, packaging lines, filling systems, bottling plants, and assembly operations. Its precise optical behavior ensures reliable detection even when targets are clear, curved, or vary in reflectivity. The compact form factor and robust sealing allow installation in areas exposed to cleaning agents, moisture, and temperature changes while maintaining consistent performance.
The Sick WL4SLG-3F7254H Photoelectric Sensor offers dependable sensing through its laser-based autocollimation, stainless steel construction, and high switching frequency. These attributes make it a trusted choice for industries requiring accuracy and durability in washdown environments. With clearly defined specifications and the proven reliability of Sick’s W4 platform, it supports long-term stability in automation systems across India.
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