Allen-Bradley 845H-SJDZ24DNY2 Incremental Encoder

The Allen-Bradley 845H-SJDZ24DNY2 is a 24V DC optical incremental encoder with a 3/8-inch shaft, designed to deliver precise rotary-position and speed feedback for industrial automation systems. As part of Rockwell Automation’s 845H family, it provides incremental output compatible with common Allen-Bradley controllers and drives, enabling reliable monitoring of motor rotation and seamless integration into PLC-based control architectures. It is powered from 8 to 24 VDC and uses standard signaling interfaces to connect with automation equipment, supporting straightforward retrofits into existing Rockwell systems. This model is well suited for applications requiring accurate speed measurement and position counting to support motion control, conveyor and packaging lines, and other automated machinery where consistent feedback improves control performance. With its optical sensing technology, the 845H-SJDZ24DNY2 delivers clean pulse signals suitable for high-precision feedback loops in demanding manufacturing environments.