Model: MMA400D IGBT *Adopting advance inverter technology and power supply IGBT. Fast dynamicresponse speed. *Design for waterproof, dustproof and wind erosion proof, widly use in field work, avoid the fault caused by nature factor. *Stable performance. Automatic voltage compensation capablility. *With thrust compensatory fuction, advanced digital control, mechanical and remote control. *With new metal panel and cover. VRD fuction. *Widly use in Petroleum, Chemical engineering, Aviation Industry, Automible, Shipbuilding, Boiler, Power suppy, Construction, Etc.