INVT GD20-055G-4 High-Power Industrial Drive Heavy-Duty Motor VFD

The INVT GD20-055G-4 is a 55kW high-power general-purpose frequency inverter from INVT's GD20 series, engineered for the most demanding heavy-duty industrial drive applications requiring maximum power output and reliability. Operating from three-phase 380V input, this robust drive delivers 55kW of motor control with V/F and sensorless vector control for large induction motors. With built-in DC reactor, integrated braking chopper, PID control, Modbus RTU communication, independent air duct cooling, and comprehensive protection functions, it is the powerful yet cost-effective drive solution for large centrifugal pumps, high-capacity industrial fans, screw air compressors, extruders, heavy conveyors, crushers, ball mills, large mixers, and demanding industrial automation where high-power reliability at a competitive price is essential.

• High-Power Industrial Drive — 55kW G-type rating with 150% overload for 60s and 180% for 3s; sensorless vector control delivers 150% starting torque at 0.5Hz for the heaviest industrial starting loads
• Heavy-Duty Motor VFD — Proven GD20 platform scaled to 55kW with V/F and SVC control, 1:100 speed range, and ±0.5% speed accuracy for the most demanding continuous-duty industrial environments
• Robust Frequency Inverter — Built-in DC reactor suppresses input current harmonics by up to 30% and improves power factor above 0.9, ensuring grid compliance for high-power installations
• Large Motor Compatibility — Drives three-phase induction motors up to 55kW with auto-tuning and dual parameter sets; suitable for direct-on-line replacement and retrofit applications
• Advanced Process Control — Integrated PID controller with sleep/wake for pressure, flow, and temperature loops; multi-speed (up to 16) and simple PLC for standalone automation sequences
• Industrial-Grade Thermal Design — Independent air duct cooling with high-capacity DC fans; coated PCBA rated for 3C3 environments ensures reliable operation in dusty, humid factory conditions
• Full Protection & Diagnostics — Overcurrent, overvoltage, undervoltage, overload, overheating, input/output phase loss, short-circuit, PTC motor protection, and comprehensive fault recording
• Seamless System Integration — RS485 Modbus RTU standard, LED keypad with parameter copy, motor auto-tuning, and application presets enabling rapid deployment across all major industrial sectors