SUNX CY-21P Photoelectric Switch Sensor is a compact cylindrical sensor in the SUNX CY-Series, designed for reliable object detection in automation lines. It operates from a DC supply of 10–30 V with a ripple of 10% or less, and the CY-21 family includes variants such as CY-21-PN for different output configurations. A 2 m connection cable is commonly used for field wiring, according to typical vendor listings. As part of the CY-Series cylindrical photoelectric sensors, the CY-21P is designed to sense the presence or absence of parts and features on conveyors, packaging equipment, and manufacturing lines.
