SICK WT18-3P020S15 Photoelectric Proximity Sensor

Compact SICK WT18-3P020S15 photoelectric proximity sensor detects non-contact objects over a 10 mm to 1,000 mm range, using infrared light at 870 nm with a light spot of about 30 mm in diameter at 600 mm. The 17.6 × 75.5 × 33.5 mm rectangular housing integrates a background-suppression sensor and is powered by 10–30 V DC, drawing approximately 55 mA. It provides a switched PNP output and a health/status output, with the switching point adjustable via a four-turn potentiometer. Designed for targets with high reflectivity (0.9 reflectivity reference per DIN 5033) and a rated lifetime of up to 100,000 hours at 25°C, the device carries the part number 1029590 and belongs to the WT18-3 family.