Allen-Bradley 845H-SJHZ22CPYR5 Incremental Encoder

Allen-Bradley 845H-SJHZ22CPYR5 is a Size 25 optical incremental encoder in the 845H family, designed to provide rotational position feedback for industrial automation and motion-control systems. Identified by catalog number 845H-SJHZ22CPYR5, this device is part of Allen-Bradley’s 845H line and is used in applications requiring real-time position or speed measurement for closed-loop control in automation equipment such as servo motor systems, conveyors, and machine tools. The 845H family is documented by Rockwell Automation as incremental encoders, with the SJHZ22CPYR5 variant representing a specific installation/configuration within the family. Note: Rockwell Automation announced that the Size 25 Incremental Encoder in this family was discontinued as of August 31, 2015, and is no longer available for new orders from the manufacturer. In practice, this model may still appear in service or replacement contexts through authorized distributors or legacy equipment catalogs. When selecting a replacement or matching this part for an existing system, confirm the exact model code (845H-SJHZ22CPYR5) and verify compatibility with the control system and any adjacent Rockwell components to ensure proper integration.