The Mitsubishi VFD FR-D740-050-NA is a variable frequency drive rated at 5A and 2.2 kW, designed for three-phase 380–480V power supplies. It controls AC motor speed by adjusting the frequency and voltage supplied to the motor, enabling precise operation according to system demand. Common HVAC applications include ventilation fans, air handling units, exhaust fans, and compatible pump ... https://www.partshnc.com/fr-d740-050-na-mitsubishi-vfd-3hp-variable-frequency-drive-5s-2-2kw-380-480v