The Delta VFD055EL43W is a frequency inverter or VFD (Variable Frequency Drive) manufactured by Delta Electronics. It has a maximum capacity of 5.5 kW and is designed to control the speed and performance of AC induction motors. Similar to other Delta VFD models, the VFD055EL43W supports various control methods, communication interfaces, and expansion options. It provides protection features such as overvoltage, undervoltage, and overload protection. The inverter can be programmed and operated through a built-in keypad or computer software. For more detailed specifications and information, it is recommended to refer to the product documentation or contact the manufacturer directly.