SICK WT250-P440 Safety Light Curtain

SICK WT250-P440 is a compact photoelectric sensor from the W250 family, catalog part number 6010621. The rectangular housing measures 20 mm wide by 65 mm high by 43 mm deep, enabling easy mounting in tight automation spaces. It detects objects within a 100–300 mm sensing range using a visible red LED light source and a 3° focus, delivering a light spot of about Ø25 mm at the far end of its range. Background suppression helps maintain reliable detection in cluttered environments, and the unit is rotatable through 90° to suit diverse mounting angles. The device operates on a 10–30 V DC supply with ripple under 5 Vpp and offers a 2-turn potentiometer for precise adjustment, making setup straightforward in varying installations. Target reflectivity is specified for remission around 90% on standard white (DIN 5033), ensuring predictable performance with common materials. In the box, SICK provides the BEF-W250 mounting accessory to facilitate quick integration with control gear. The WT250-P440 is designed for compact, fast sensing tasks in automated lines, performing position sensing, presence detection, and general object detection in manufacturing environments where a small, robust photoelectric sensor is required.