Sick WLD16P-257221A0ZZZ Photoelectric Sensor
The Sick WLD16P-257221A0ZZZ photoelectric sensor offers retro-reflective dual-lens detection with 14 m sensing range and push-pull outputs for automation. This Sick Photoelectric Sensor from the W26, W16 series uses visible red PinPoint LED, operates on 10–30 V DC, supports PNP/NPN complementary outputs, and delivers 1,000 Hz switching frequency in a rectangular housing.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WLD16P-257221A0ZZZ |
Sick WLD16P-257221A0ZZZ Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Dual lens |
| Sensing range min. | 0.25 m |
| Sensing range max. | 14 m |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Shape of light spot | Point-shaped |
| Light spot size (distance) | Ø 16 mm (1 m) |
| Wave length | 635 nm |
| Adjustment | Wire/pin |
| Indication | LED blue, LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC 1) |
| Ripple | ≤ 5 Vpp |
| Usage category | DC-12 (According to EN 60947-5-2), DC-13 (According to EN 60947-5-2) |
| Current consumption, sender & Receiver | ≤ 30 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital output Number | 2 (Complementary) |
| Output type | Push-pull: PNP/NPN |
| Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
| Signal voltage NPN HIGH/LOW | Approx. UB / < 2.5 V |
| Output current Imax. | ≤ 100 mA |
| Circuit protection outputs | Reverse polarity protected, Overcurrent and short-circuit protected |
| Response time | ≤ 500 µs 2) |
| Repeatability (response time) | 150 µs |
| Switching frequency | 1,000 Hz 3) |
| Housing | Rectangular |
| Dimensions (W x H x D) | 20 mm x 55.7 mm x 42 mm |
| Connection | Male connector M12, 4-pin |
| Housing material | Plastic, VISTAL® |
| Front screen material | Plastic, PMMA |
| Male connector material | Plastic, VISTAL® |
| Maximum tightening torque of the fixing screws | 1.3 Nm |
| Enclosure rating | IP66 (EN 60529), IP67 (EN 60529), IP69 (EN 60529) 1) |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | Approx. 50 g |
The WLD16P-257221A0ZZZ Sick 14m PNP NPN Retro-reflective Sensor is a Sick photoelectric sensor designed for long-distance object detection in industrial automation. The WLD16P-257221A0ZZZ Sick 14m PNP NPN Retro-reflective Sensor operates using a dual-lens retro-reflective principle with a 0.25–14 m sensing range, push-pull PNP/NPN output, and PinPoint LED light source. It belongs to the W26 and W16 series and is applied in controlled automation environments.
In industrial automation systems, the WLD16P-257221A0ZZZ is installed on conveyors, packaging lines, assembly stations, and material handling equipment. Dual-lens retro-reflective sensing supports consistent detection over extended distances, while the 1,000 Hz switching frequency ensures stable response for moving objects. The rectangular housing and M12 connector allow standardized installation in compact machine layouts.
The Sick WLD16P-257221A0ZZZ photoelectric sensor combines defined optical performance with electrical and environmental protection. With IP66/IP67/IP69 enclosure ratings, protected outputs, and stable DC operation, this Sick sensor is suitable for continuous industrial use. The WLD16P-257221A0ZZZ model aligns with Sick photoelectric sensor specifications, supporting dependable operation across industrial automation applications.
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