Features:            This VFD 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 by screw terminals which are more convenient.         Designed with large heat sink for better heat dissipation.                     Specifications:       Model: AT3-4000X  Power Source Phase: Three-phase       Rated Voltage: Three-phase AC380V       Suitable Motor Power: 4kW        Filter: Built-in filter       DC Power Supply Type: Voltage type  Control Method: V/F closed loop  Output Voltage Adjusting Method: PWM control        Rated Current: 12A       Max. Output Frequency: 400Hz       Weight: 1.5kg(approx.)               Package Includes:       1 x Variable Frequency Drive