Mitsubishi Electric FR-D740-080-NA Variable Frequency Drive

The Mitsubishi Electric FR-D740-080-NA is a 3.7 kW (5 HP) variable frequency drive in the FREQROL-D700 series, designed for precise speed control of 3-phase AC motors in conveyors, pumps, fans, and general machinery. It accepts 3-phase 380–480 VAC input and provides an adjustable output frequency from 0.2 to 400 Hz, using V/f control with advanced motor control functions. Built-in features include a digital keypad, parameter dial, diagnostics, and braking function, along with overcurrent, overvoltage, overload, and overheating protections, plus a built-in fan for cooling. Panel-mount installation, RoHS compliance, and a operating range of −10 °C to 50 °C suit industrial environments. Common replacements for this unit include Mitsubishi FR-E740-3.7K.