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The Mitsubishi Electric FR-D740-050-EC is a compact variable frequency drive from the FREQROL FR-D700 Series, developed for reliable speed and frequency control of three-phase AC motors. With an applicable motor capacity of 2.2 kW and a rated output current of 5.0 A, this inverter provides a practical solution for controlling motors in industrial machinery and automated equipment. Its three-phase 380 to 480 V AC input makes it suitable for industrial power systems in the 400 V class.
The FR-D740-050-EC supports multiple motor control methods, including V/F control, general-purpose magnetic flux vector control, and optimum excitation control. It offers an output frequency range from 0.2 to 400 Hz, allowing flexible motor speed adjustment for different machine requirements. The inverter also provides 150% overload capacity for 60 seconds and 200% for 0.5 seconds under the specified inverse-time characteristics. These features make it suitable for applications requiring dependable variable-speed motor operation.
The compact FR-D740-050-EC can be used in conveyors, pumps, fans, production equipment, machine tools, material handling systems, and general factory automation applications. Its IP20 enclosure and forced-air cooling are designed for installation within appropriate electrical control equipment. When replacing an existing inverter, users should verify the complete model number, input voltage, motor capacity, rated current, wiring configuration, and application requirements before installation. Mitsubishi Electric documentation identifies the FR-D740-050-EC as a three-phase 400 V class FR-D700 inverter with a 2.2 kW applicable motor capacity.