Allen-Bradley 844B-Z405D1000 Incremental Encoder

The Allen-Bradley 844B-Z405D1000 is a hollow/through-shaft incremental encoder that provides 1000 pulses per revolution for precise rotor feedback. Its through-shaft design allows the monitored shaft to pass completely through the encoder, enabling tight, compact installations on motors, gearboxes, and conveyors without the need for a dedicated coupling. As part of the 844B family, this general-purpose encoder is engineered for industrial automation applications where durable, reliable incremental feedback is required. The model is commonly used to provide speed and position signals to motion controllers and PLCs in applications such as packaging lines, material handling conveyors, and machine tools. With a 1000 PPR resolution, the 844B-Z405D1000 delivers crisp, repeatable feedback suitable for servo and stepper systems that rely on consistent pulse trains for precise control. Manufactured by Allen-Bradley (Rockwell Automation) as Bulletin 844B through-shaft encoders, these devices are widely used in automation and motion-control environments.