SICK WE34-B440 Photoelectric Sensor Receiver

The SICK WS/WE34-B440 receiver, part number 1019255, is a compact through-beam photoelectric sensor receiver designed for 10–30 V DC operation and distances up to 60 meters. Measuring 27 mm wide, 92 mm high, and 70 mm deep with a rectangular housing, it pairs with a matching WS34-D440 transmitter to form a through-beam system that uses a 660 nm visible red LED and a beam with about 1° dispersion. The receiver draws about 40 mA at 10–30 V DC, while the sender draws roughly 50 mA, and its supply ripple should be under 5 Vpp. The unit supports light/dark switching with a 1:1 ratio and has an average service life of 100,000 hours at +25°C. Typical applications include long-range beam interruption detection in factory automation for object presence on conveyors, packaging lines, or general machine setups.