This Variable Frequency Drive uses unique control method to realize high moment of force, high accuracy and wide speed regulating range driving, with high performance. It has good anti-trip performance and ability to adapt to rough power, temperature, humidity and dust interference, greatly improved stability. By optimizing PWM control technology and electromagnetic compatibility, it satisfies users’ requirement of low noise, low electromagnetic interference. Simple to operate and wire, connect to wires after removing screws. Fast start and stop response, large moment of force at low speed. Rated Voltage: AC220V (single phase). Suitable Motor Power: 4kW. Control Method: V/F open loop. Output Voltage Adjustable Method: PWM control. Maximum Output Frequency Range: 0 – 400Hz. Single phase AC 220V input. Output, connect to 3-phase AC motor. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.