Product Description

The Mitsubishi FR-A820-3.7K-1 is a high-performance variable frequency drive (VFD) from the FR-A800 series, designed for precise control of 3-phase induction and permanent magnet motors in industrial automation applications. With a rated output of 3.7 kW (5 HP) and a frequency range of 0.2–590 Hz, it offers versatile motor control capabilities. Equipped with advanced vector control methods, including magnetic flux vector control and real sensorless vector control, it ensures accurate speed and torque regulation. The inverter features built-in communication protocols such as Modbus/TCP and CC-Link IE Field Network, facilitating seamless integration into various automation systems. Its compact design, IP20 protection class, and integrated EMC filter make it suitable for a wide range of industrial environments.​

Technical Specifications

• Model: FR-A820-3.7K-1
• Series: FR-A800
• Motor Capacity: 3.7 kW (5 HP)
• Rated Output Current: 17.5 A (ND)
• Input Voltage: 3-phase 200–240 V AC
• Frequency Range: 0.2–590 Hz
• Control Methods: Vector control, V/F control, magnetic flux vector control, real sensorless vector control
• Motor Types Supported: Induction motors, permanent magnet motors
• Communication Protocols: Modbus/TCP, CC-Link IE Field Network
• Display: FR-DU08 5-digit LED
• Protection Class: IP20
• Integrated EMC Filter: Yes (can be disabled)
• Safe Torque Off (STO): Yes
• Dimensions: 150 mm (W) × 318 mm (H) × 142 mm (D)
• Weight: Approximately 3.96 kg
• Certifications: CE, UL/cUL, EAC, UKCA​