Product Description

The Mitsubishi FR-F740-55K-CHT is a high-performance variable frequency drive (VFD) from the FREQROL FR-F700 series, designed to provide precise speed and torque control for 55 kW (75 HP) three-phase induction motors. Operating on a 380–480V AC input, this inverter is ideal for applications such as fans, pumps, and HVAC systems. It offers a wide output frequency range from 0.5 to 400 Hz, ensuring compatibility with various motor types and operational requirements. The FR-F740 series is known for its energy-saving capabilities, advanced control methods, and robust protection features, making it suitable for demanding industrial environments.​

Technical Specifications

• Model: FR-F740-55K-CHT
• Series: FREQROL FR-F700
• Rated Power: 55 kW (75 HP)
• Input Voltage: 380–480V AC, 3-phase
• Output Frequency Range: 0.5 to 400 Hz
• Control Methods: V/f Control, Open Loop Vector Control, Closed Loop Vector Control
• Overload Capacity: 120% for 60 seconds, 150% for 3 seconds
• Communication Protocol: RS-485 Modbus RTU
• Analog Inputs: 3 inputs (0–5V, 0–10V, 4–20mA)
• Digital Inputs: 12 inputs
• Analog Outputs: 1 output (0–10V)
• Digital Outputs: 5 outputs
• Relay Outputs: 2 SPDT contacts
• Protection Features: Overcurrent, overvoltage, motor overload, heatsink overheat, input phase loss, output side earth fault, PTC thermistor input, and more
• Degree of Protection: IP00 (open chassis)
• Mounting: Wall or cubicle mount
• Dimensions: 435 mm (W) × 250 mm (D) × 550 mm (H)
• Weight: Approximately 35 kg
• Certifications: CE, UL/cUL