Feature: The speed control range of the motor governor is 90–1400 r/min at 50 Hz and 90–1700 r/min at 60 Hz. The controller is built with high-quality electronic components, ensuring stable and reliable performance. It offers high control precision and enables precise micro-control of motor speed. The device is user-friendly, allowing easy operation and quick learning for beginners. It is widely used in packaging, printing, food processing, electronics, instrumentation, medical equipment, and garment industry production lines as a speed drive device. Specification: Product model: US-52-RED Matching motor power: 300W, 400W, 500W (optional) Working power supply: AC 220V, 50/60 Hz (voltage fluctuation range ±10% Ue) Operating environment: -10°C to 50°C, relative humidity: ≤90% (non-condensing)