INVT GD20 series GD20-0R4G-S2 Single-Phase Compact Inverter Cost-Effective Motor Drive

The INVT GD20-0R4G-S2 is a 0.4kW single-phase compact frequency inverter from INVT's GD20 series, designed for cost-effective motor control in small industrial and commercial drive applications where only single-phase 220V power is available. This general-purpose drive converts single-phase 200–240V input to three-phase output for controlling small induction motors up to 0.4kW. With built-in V/F and sensorless vector control, integrated PID, Modbus RTU communication, and comprehensive protection functions, it is the ideal entry-level drive solution for small pumps, fans, conveyors, food processing equipment, packaging machines, and general-purpose industrial automation in locations with single-phase utility power.

• Single-Phase Compact Inverter — 0.4kW G-type rating with 200–240V single-phase input and three-phase output, enabling three-phase motor operation from standard single-phase utility power without phase converter
• Cost-Effective Motor Drive — Proven GD20 platform with reliable V/F and sensorless vector control (SVC), delivering stable speed regulation and 150% overload for 60s at an economical price point
• Reliable Speed Controller — SVC mode provides 150% starting torque at 0.5Hz with 1:100 speed control range and ±0.5% speed accuracy, suitable for general machinery speed control applications
• Built-in PID Control — Integrated PID controller for closed-loop process control of pressure, flow, and temperature without external controller, ideal for constant pressure water supply and fan control
• Compact DIN-Rail Design — Ultra-compact housing with DIN-rail mounting option, enabling quick installation in tight control cabinets or machine-mounted configurations
• Easy Commissioning — Intuitive LED keypad with parameter copy function, auto-tuning for motor parameters, and pre-configured application macros for quick startup across common applications
• Built-in Modbus Communication — Standard RS485 Modbus RTU interface for simple integration into PLC and SCADA systems without additional communication hardware
• Comprehensive Protection — Overcurrent, overvoltage, undervoltage, overload, overheating, phase loss, and short-circuit protection with automatic fault recording for quick troubleshooting