China AC Drive Speed Controller VFD Air Compressor Frequency Inverter G300-21-055G-4

GD300-21 series air compressor dual frequency conversion all-in-one machine is a special dual frequency conversion all-in-one machine designed 

and developed for synchronous or asynchronous twin-screw air compressors. It is used in conjunction with INVT's HMI touch screen to perfectly 

realize the drive and management of twin-screw air compressors. GD300-21 air compressor all-in-one machine can provide air compressors with 

dual frequency conversion outputs for the host and fan, provide +24V power to the touch screen, control the solenoid valve, and receive temperature 

and pressure signals. It completely replaces the original air compressor dual frequency conversion electrical control cabinet in terms of function. 

However, compared with the previous electrical control cabinet, the volume of the all-in-one machine is greatly reduced, and installation and 

debugging have become easier.

Power range:

Three-phase 220V (-15%) ~ 240V (+10%) 7.5~45KW

Three-phase 380V (-15%) ~ 440V (+10%) 15~90KW

Product feature

1. Dual frequency conversion drive and control in one: The main engine and oil temperature fan are dual frequency conversion drive 

and control in one, which makes the control more intelligent and the air compressor more energy-saving and efficient.

2. Two-stage dual drive control: The unique dual drive constant pressure control algorithm is integrated to make the two-stage dual 

drive air compressor always run in the best operating state.

3. Integrated integrated design: The functions and configurations are highly integrated, which reduces the customer's electrical cabinet 

assembly time by 80%, and greatly reduces the customer's product material cost and manufacturing cost.

4. Stable and reliable: Design, test and production are strictly carried out in accordance with IEC international standards to ensure the 

reliable operation of the product in various harsh environments.

5. Smart Internet of Things cloud platform: Optional 4G Internet of Things data terminal, connected to the air compressor dedicated 

Internet of Things cloud platform, can realize real-time detection of operating status, maintenance reminder, fault alarm and intelligent 

analysis, remote maintenance, intelligent management of equipment operating status, equipment energy efficiency data analysis another functions; in addition, it supports customized deployment of private cloud platform, with diversified choices and good data confidentiality.