3-Phase VFD Inverter

The SINEE EM730-450-3 is a high-reliability, general-purpose variable frequency drive (VFD) optimised for controlling industrial AC motors up to 450 kW. It accepts a three-phase 340–460V AC input and integrates advanced VVF (vector V/F) and SVC (sensorless vector control) algorithms for precise speed and torque regulation. The EM730 series delivers enhanced operational safety and flexibility with modern features such as a removable digital keypad, Modbus RTU communication, and comprehensive protection functions.

Key Features

• Motor Compatibility: Three-phase AC asynchronous motors; supports permanent magnet synchronous motors (non-standard version)

• Power Rating: 450 kW

• Input Voltage: Three-phase 340–460V AC

• Control Modes: V/F (VVF), SVC

• Output Modes: Speed and torque control

• Special Functions: High-frequency output up to 3000Hz (for high-speed motors), rewinding/unwinding functions

• Protection: Overcurrent, short circuit, overheat, overload, phase loss, load loss, external faults

• User Interface: Detachable LED keypad, digital display, function keys, potentiometer

• Communication: Modbus RTU support

• Cooling: Forced air cooling

• EMC: Integrated C3 filter

• Protection Class: IP20

• Ambient Temp.: Up to 50°C

• Applications: Rewinding/unwinding, cranes, HVAC, production machinery, cable manufacturing, and other industrial environments