Features:1. The governor has 6 wires, the black wire is the main wire of the motor, the red and white are the secondary lines of the capacitor, and the 2 blue lines are the speed feedback line. The green line is a ground line.2. Widely used in packaging, printing, food, electronics, instrumentation, medical equipment, garment industry production line to perform drive speed control. Specifications:Working Power Supply: AC220V 50/60HZvoltage Fluctuation Range: ± 10%UeRated Power: 300W/500W Environment: -10 - +50°cRelative Humidity: Less than 90%Speed Range: 90-1400r/min 50HZ, 90-1700r/min 60HZPort: 3.96Dimensions: 115*100*60mm/4.52*3.93*2.36'' Panel Size: 100*60mm/3.93*2.36''Machine Depth: 87*80*52mm/3.42*3.14*2.04'' Notes:Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thank you for your understanding. 1 x Motor Speed Controller