ELTRA EH38A500Z5L6X3PR Miniaturized incremental encoder with solid shaft optical. Several output types available. Size: 38mm. Fixing flange: 20mm. Resolution: 500 ppr. With zero pulse. Power Supply: 5 V DC. Electronic interface: line driver Shaft diameter: 6mm. Enclosure rating: IP 54 Rotation speed: 3000 rpm max PR radial cable output (standard length 0,5m). Series is recommended when a minimal size is required.