VFD Inverter | Variable Frequency Drive | AC Motor Drive

Variable Frequency Drives (VFD Inverters) – AC Motor Speed Control for Industrial Applications

Variable Frequency Drives (VFD Inverters) control AC motor speed and torque by adjusting output frequency and voltage, reducing energy consumption and mechanical stress on motors and connected equipment.

Our VFDs support 220V single-phase and 380V three-phase motors, with power ranges from 0.4kW to 800kW, suitable for pumps, fans, conveyors, HVAC systems, CNC machines, and industrial automation.

Variable Frequency Drives (VFD Inverters) control AC motor speed and torque by adjusting output frequency and voltage, reducing energy consumption and mechanical stress on motors and connected equipment.

Our VFDs support 220V single-phase and 380V three-phase motors, with power ranges from 0.4kW to 800kW, suitable for pumps, fans, conveyors, HVAC systems, CNC machines, and industrial automation.

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VFD Selection Guide

VFD SelectionSelect by motor power, supply voltage, and load type. Light-load applications (pumps, fans) select 1.2–1.3× motor rating; heavy-load applications (crushers, extruders) select 1.5–1.7×. See our VFD Selection Guide for detailed guidance.

Key Advantages

Key Advantages

Energy Saving — Reduces power consumption by matching motor speed to actual load demand
Soft Start & Stop — Controls acceleration and deceleration to reduce inrush current and mechanical stress
Precise Speed Control — V/F and vector control modes for accurate speed and torque regulation
Built-in Protection — Overload, overheat, overvoltage, undervoltage, and short-circuit protection

Key Advantages

Energy Saving — Reduces power consumption by matching motor speed to actual load demand
Soft Start & Stop — Controls acceleration and deceleration to reduce inrush current and mechanical stress
Precise Speed Control — V/F and vector control modes for accurate speed and torque regulation
Built-in Protection — Overload, overheat, overvoltage, undervoltage, and short-circuit protection

Applications

Pumps & Water Systems — Water supply, booster, and sewage pump speed control
Fans & Blowers — Ventilation fans, industrial blowers, and HVAC air handling units
Compressors — Air and gas compressors requiring variable speed and energy saving
Conveyors & Material Handling — Conveyor belts, mixers, and production line equipment

Pumps & Water Systems — Water supply, booster, and sewage pump speed control
Fans & Blowers — Ventilation fans, industrial blowers, and HVAC air handling units
Compressors — Air and gas compressors requiring variable speed and energy saving
Conveyors & Material Handling — Conveyor belts, mixers, and production line equipment

Specifications

Parameter	Description
Input Voltage	Single-phase 220V / Three-phase 380V
Output Voltage	0V to rated input voltage
Power Range	0.4kW – 500kW
Output Frequency	0–500Hz (V/F control); 0–2000Hz (Vector control)
Control Modes	V/F control, Sensorless vector control (SVC), Closed-loop vector control (FVC)
Speed Control Accuracy	±0.5% (SVC)
Start / Stop	Soft start / Soft stop
Communication	RS-485, Modbus RTU
Protection Features	Overload, overheat, overvoltage, undervoltage, phase loss, short-circuit
Cooling Method	Forced air cooling
Ambient Temperature	-10°C to +40°C (derate above 40°C)
Installation	Wall mount / Control cabinet

Parameter	Description
Input Voltage	Single-phase 220V / Three-phase 380V
Output Voltage	0V to rated input voltage
Power Range	0.4kW – 500kW
Output Frequency	0–500Hz (V/F control); 0–2000Hz (Vector control)
Control Modes	V/F control, Sensorless vector control (SVC), Closed-loop vector control (FVC)
Speed Control Accuracy	±0.5% (SVC)
Start / Stop	Soft start / Soft stop
Communication	RS-485, Modbus RTU
Protection Features	Overload, overheat, overvoltage, undervoltage, phase loss, short-circuit
Cooling Method	Forced air cooling
Ambient Temperature	-10°C to +40°C (derate above 40°C)
Installation	Wall mount / Control cabinet

FAQs

What is a VFD (Variable Frequency Drive)?

A Variable Frequency Drive (VFD) controls AC motor speed and torque by adjusting the output frequency and voltage. It reduces energy consumption and mechanical stress on motors and connected equipment. VFDs are widely used in pumps, fans, conveyors, HVAC systems, and industrial automation.

What are the key benefits of using a VFD?

Reduces energy consumption by matching motor speed to actual load demand
Soft start and stop to reduce mechanical and electrical stress
Precise speed control with V/F, vector, and closed-loop modes
Built-in protection against overload, overheat, overvoltage, undervoltage, and short-circuit

Which applications are VFDs suitable for?

Pumps, fans, and HVAC systems
Conveyors and CNC machines
Industrial automation and production lines

What voltage and power options are available?

Voltage: Single-phase 220V, Three-phase 380V
Power: 0.4kW to 500kW

How do I select the right VFD?

Select based on motor power, supply voltage, and load type. See our VFD Selection Guide for detailed guidance, or contact us with your motor nameplate data for a free recommendation.