ELTRA ER38G400Z5/28C8X3PR Blid Hollow Shaft Incremental Miniaturized Encoder. Mounting by anti-rotation pin. With zero pulse. Encoder Size: 38 mm. 400 ppr Resolution. Output frequency: up to 220 kHz. Power Supply: 5 ... 28 V DC. Shaft diam.: 8mm. Electronic interface: NPN open collector. Protection class: IP 64. Maximum rotation speed: 3000 rpm. Radial cable with standard length 0.5 m. Series is recommended for general applications, gearmotors and small AC motors.