Mitsubishi Electric FR-D740-3.7K-CHT Variable Frequency Drive

The Mitsubishi FR‑D740‑3.7K‑CHT is a 3.7 kW, 380 V three‑phase frequency inverter (VFD) that provides precise variable speed control for industrial AC motors. It is commonly used to drive pumps, fans, conveyors, mixers, and packaging equipment, delivering smooth acceleration and energy‑efficient operation in automation systems. Key specs include an output current of approximately 11 A, PWM drive, and V/f control with advanced features, a 0.1–400 Hz operating range, and 150% overload for 1 minute. The unit features built‑in fan cooling, IP20 enclosure, and panel‑mount installation, designed for reliable operation in demanding environments. Built‑in functions include PID control, DC braking, and torque boost; safety protections cover overcurrent, overvoltage, and overheating. Optional RS‑485/Modbus communication expands integration possibilities, and the operating temperature range is −10°C to 50°C (−20°C to 65°C storage).