SICK WT9L-N430 Photoelectric Sensor

The SICK WT9L-N430 reflex photoelectric sensor is a compact 12 mm x 40 mm x 22 mm rectangular device that detects reflective targets from 30 mm up to 150 mm away, making it ideal for space‑constrained automation tasks. It operates on 10–30 V DC and draws about 35 mA, delivering an NPN switching output with light/dark switching capability for flexible PLC integration. Emitting a laser‑based light beam classified as IEC 60825‑1 Class 2, the sensor creates a small light spot approximately 0.5 mm in diameter at a 60 mm distance, and it features background suppression to maintain reliable detection on varying surfaces. Adjustment is accomplished via a 7‑turn potentiometer, enabling precise threshold tuning, and the unit’s robust design supports typical industrial environments. With a service life of up to 50,000 hours at +25 °C, the WT9L‑N430 is well suited for applications such as packaging, conveyor monitoring, and part detection on assembly lines, where a compact, high‑precision reflective sensor is required to reliably sense objects without a separate reflector.