SICK GL10-P4551 Retroreflective Photoelectric Sensor, 10 m Detection Range, Rectangular, PNP Output, 30V DC, IP67

The SICK GL10-P4551 Retroreflective Photoelectric Sensor is a compact precision device engineered to facilitate rapid, accurate object detection in industrial automation, packaging, and logistics environments. Featuring a visible red pin-point LED as its light source, it achieves a long detection range of up to 10 meters, making it ideal for conveyor-borne parcels, counting operations, and presence detection tasks.

This sensor utilizes a robust rectangular plastic housing meeting IP67 specifications, ensuring resistance against dust and water intrusion and providing exceptional reliability even in demanding production facilities. The device supports panel-mount installations and connects via a male M12 4-pin connector, offering secure electrical interface and straightforward integration into control systems.

With a flexible operating voltage range between 10V and 30V DC and a swift, stable response time of 1 ms, the GL10-P4551 is perfectly suited for high-frequency sensing applications. Its PNP switching output delivers direct PLC compatibility and handles common switching loads up to 100mA. Enhanced by a polarization filter, the sensor is optimized for minimizing false triggers caused by shiny or foil-wrapped targets, ensuring consistent detection performance.

The device incorporates protective circuit features including reverse polarity and short-circuit safeguards, minimizing downtime and risk in automated installations. Visual status is provided by LED indicators: a yellow LED for received light and a green LED for power-on confirmation, aiding in setup and ongoing monitoring.

SICK GL10-P4551 is commonly deployed in logistics lines, packaging machines, and industrial production systems where precision object detection, reliability, and fast communication with PLCs are essential. The sensor is specified for ambient temperatures from -30°C to +60°C, with storage limits extending to -40°C up to +70°C. Its compliance with EN 60947-5-2 standards attests to its industrial suitability.

Typical use cases include high-speed counting, film-wrapped parcel detection, and presence sensing in machinery where accurate, robust sensors are required. The rectangular form factor and panel-mount options enable versatile installation across automation setups.