Sick WL12G-3P2572 Photoelectric Sensor
The Sick WL12G-3P2572 photoelectric sensor provides 4 m sensing range, 660 nm light source, and PNP output for industrial automation detection applications, while the Sick WL12G-3P2572, known as the Sick 660 nm Retro-reflective Sensor, belongs to Sick photoelectric sensors and the W12 series, featuring autocollimation principle, PinPoint LED light, 10–30 V DC supply, 333 µs response time, 1,500 Hz switching frequency, M12 5-pin connector, IP66/IP67 protection, and rectangular metal housing.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WL12G-3P2572 |
Sick WL12G-3P2572 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0 m ... 4 m |
| Sensing range | - |
| Polarisation filters | Yes |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 25 mm (1.5 m) |
| Wave length | 660 nm |
| Adjustment | Single teach-in button |
| Angle of dispersion | - |
| Special applications | Detecting transparent objects |
| Items supplied | - |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 40 mA |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | Approx. VS – 2.5 V / 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 333 µs 4) |
| Switching frequency | 1,500 Hz 5) |
| Output function | - |
| Special feature | Detecting transparent objects |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15.6 mm x 48.5 mm x 42 mm |
| Connection | Male connector M12, 5-pin |
| Housing material | Metal, zinc diecast |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66, IP67 |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 120 g |
The Sick WL12G-3P2572 photoelectric sensor, also referred to as the Sick 660 nm Retro-reflective Sensor, is designed for reliable object detection in industrial automation systems. It offers a 4 m sensing range, 660 nm light source, and PNP output for consistent detection. As part of the W12 series, the Sick WL12G-3P2572 uses autocollimation and polarisation filtering to ensure accurate detection of transparent objects.
The Sick WL12G-3P2572 photoelectric sensor is used in conveyors, packaging systems, assembly lines, and material handling processes. Its retro-reflective sensing method supports stable detection across varying object types and surfaces. The sensor ensures consistent switching output, supporting reliable automation control. With its compact rectangular design and M12 connector, the Sick WL12G-3P2572 integrates easily into industrial installations.
The Sick WL12G-3P2572 photoelectric sensor combines controlled sensing range with durable industrial construction. With features such as stable output, fast response time, and IP67 protection, it supports continuous operation in industrial environments. As part of the Sick W12 series, it ensures compatibility with standard automation systems. The Sick WL12G-3P2572 is suitable for applications requiring consistent detection, reliable switching, and dependable performance.
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