Q20PLP: 77761 - Banner Molex Photoelectric Sensor

The Banner Q20PLP: 77761 is built to handle precision sensing at long distances with its polarized diffuse mode, reaching up to 4000 mm. It utilizes a visible red LED beam at 645 nm wavelength to detect reflective targets while minimizing background interference. Its thermoplastic rectangular housing is rugged yet compact, offering reliable protection in tight machine setups. This model is IP67 and NEMA 4X rated, ensuring protection from water, dust, and chemical exposure—making it dependable in washdown areas, packaging zones, and dusty shop floors. The Molex connector ensures fast, secure integration in prewired OEM systems. Operating on a 10–30 V DC power supply, the Q20PLP supports PNP discrete output and features a 4-pin configuration for streamlined installation. The sensor offers an output response time of 0.8 ms and a repeatability of 155 µs, providing high-speed feedback for dynamic automation processes. A 100 ms power-up delay prevents false triggers on system startup. The onboard potentiometer allows sensitivity adjustment based on target reflectivity or distance. Equipped with an acrylic lens and LED status indicators, this unit offers visual diagnostics to assist operators and maintenance teams. Designed to operate between -20°C to 60°C and at 95% humidity, the Q20PLP sensor offers lasting performance in the harshest conditions. For a full breakdown of specs, refer to the official Banner Q20PLP datasheet.

Applications of Q20PLP: 77761 - Banner

The Q20PLP: 77761 is widely used in conveyor lines, material sorting, automated packaging systems, and robotic cells where long-range, reflector-based object detection is required. In electronics manufacturing, it helps sense large PCBs or trays as they pass through assembly lines. In food and beverage processing, the sensor operates reliably despite washdowns or high humidity. Its Molex connectivity makes it ideal for OEMs standardizing on modular wiring, while the long sensing range reduces sensor count in high-speed lines. Maintenance engineers favor the Q20PLP for its durability, quick diagnostics, and consistent performance. Whether for retrofits or new system designs, this Banner photoelectric sensor delivers a balance of precision, durability, and integration ease that industrial teams can trust.