BEI Sensors H25D-SS-CCW-8GC-28V-OC-EM20 Rotary Encoder

BEI Sensors H25D-SS-CCW-8GC-28V/OC-EM20 is an absolute rotary encoder from BEI’s H25D family that provides a Gray Code absolute position output (8GC) for each shaft angle, eliminating the need for a reference pulse after power-up. The device operates on a 5 to 28 V DC supply and uses open-collector outputs (OC), suitable for interfacing with standard industrial controllers. The CCW orientation and EM20 end style denote the code wheel direction and the mating connector configuration, while the chassis-mount, shaft-actuated package supports straightforward integration into control panels and machines. With a minimum life rating of 200 million revolutions, this encoder is designed for high-cycle applications and reliable long-term operation. It is lead-free and RoHS compliant. This encoder is well-suited for robotics, CNC machines, and automation systems that require reliable, battery-free position feedback across power cycles and precise absolute positioning at restart. Its compact chassis-mount form factor and absolute data output make it a strong choice for retrofits or new builds where space is at a premium and deterministic position feedback is essential.