INVT GD300-21 Series VFD
INVT control system for air compressor dual-inverter integrated machine is the flagship product of INVT. It can realize dual inverter integrated control of the air compressor. This system solution is a perfect substitute for air compressor electrical cabinet but added with various additional powerful functions.
Description
INVT GD300-21 Series VFD for Air Compressor Systems
The INVT GD300-21 Series Variable Frequency Drive (VFD) is a next-generation drive developed for air-compressor applications. It combines precise main-motor control, dedicated fan-inverter control, energy-efficient operation and reliable system integration.
The GD300-21 is suitable for screw compressors, rotary compressors, industrial compressed-air systems, process-control machinery and heavy-duty industrial equipment. Its coordinated motor and fan control helps simplify compressor-panel design while supporting efficient system operation.
As an Authorised INVT Diamond Partner, Integrated Control Solutions supplies genuine INVT GD300-21 drives across India with model-selection support, programming assistance, commissioning guidance, repair support and fast delivery.
INVT GD300-21 Key Benefits
- Dedicated design for air-compressor systems.
- Precise main-motor speed control.
- Integrated fan-inverter control.
- Energy-efficient variable-speed operation.
- Stable operation under changing compressor demand.
- Suitable for 220 V and 380 V three-phase systems.
- Reliable control for industrial compressed-air applications.
INVT GD300-21 Technical Specifications
| Brand | INVT |
|---|---|
| Series | GD300-21 |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Classes | Three-phase 220 V and three-phase 380 V |
| Main Motor Range | 7.5 kW to 90 kW across the listed models |
| Fan Inverter Range | 1 kW to 4 kW across the listed models |
| Typical Applications | Screw compressors, rotary compressors, compressed-air systems and process machinery |
Why Buy INVT GD300-21 From ICS India?
- Authorised INVT Diamond Partner
- Genuine INVT products
- Technical compressor-drive selection support
- Pan India supply
- Programming and commissioning assistance
- Industrial VFD repair support
- Fast quotation and delivery assistance
Explore more INVT AC Drives or request an INVT GD300-21 quotation.
INVT GD300-21 Models and Compressor Ratings
The following table lists GD300-21 model numbers, voltage classes, rated input current, main-motor inverter ratings and fan-inverter ratings. Confirm all final values and ordering codes in the official INVT catalogue or manual before ordering.
| Voltage Class | Model | Rated Input Current | Main Motor Inverter | Fan Inverter | Model Details | ||
|---|---|---|---|---|---|---|---|
| Power | Output Current | Power | Output Current | ||||
| 3PH 220V | GD300-21-7R5G-2 | 35 A | 7.5 kW | 30 A | 1 kW | 4.2 A | View details |
| 3PH 220V | GD300-21-011G-2 | 48 A | 11 kW | 42 A | 1 kW | 4.2 A | View details |
| 3PH 220V | GD300-21-015G-2 | 60 A | 15 kW | 55 A | 1 kW | 4.2 A | View details |
| 3PH 220V | GD300-21-018G-2 | 75 A | 18.5 kW | 70 A | 1 kW | 4.2 A | View details |
| 3PH 220V | GD300-21-022G-2 | 90 A | 22 kW | 80 A | 1.5 kW | 7.5 A | View details |
| 3PH 220V | GD300-21-030G-2 | 120 A | 30 kW | 110 A | 1.5 kW | 7.5 A | View details |
| 3PH 220V | GD300-21-037G-2 | 145 A | 37 kW | 130 A | 1.5 kW | 7.5 A | View details |
| 3PH 220V | GD300-21-045G-2 | 175 A | 45 kW | 160 A | 3 kW | 11 A | View details |
| 3PH 380V | GD300-21-015G-4 | 33 A | 15 kW | 32 A | 1 kW | 3 A | View details |
| 3PH 380V | GD300-21-018G-4 | 38 A | 18.5 kW | 38 A | 1 kW | 3 A | View details |
| 3PH 380V | GD300-21-022G-4 | 45 A | 22 kW | 45 A | 1 kW | 3 A | View details |
| 3PH 380V | GD300-21-030G-4 | 60 A | 30 kW | 60 A | 1.5 kW | 3.7 A | View details |
| 3PH 380V | GD300-21-037G-4 | 75 A | 37 kW | 75 A | 1.5 kW | 3.7 A | View details |
| 3PH 380V | GD300-21-045G-4 | 93 A | 45 kW | 92 A | 3 kW | 6.8 A | View details |
| 3PH 380V | GD300-21-055G-4 | 112 A | 55 kW | 115 A | 3 kW | 6.8 A | View details |
| 3PH 380V | GD300-21-075G-4 | 146 A | 75 kW | 150 A | 3 kW | 6.8 A | View details |
| 3PH 380V | GD300-21-090G-4 | 175 A | 90 kW | 180 A | 4 kW | 9.5 A | View details |
INVT GD300-21 Model Details
Scroll horizontally to compare all GD300-21 models, voltage classes, main-motor ratings and fan-inverter ratings.
INVT GD300-21-7R5G-2 Air Compressor VFD (7.5 kW)
| Model | GD300-21-7R5G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 35 A |
| Main Motor Power | 7.5 kW |
| Main Motor Output Current | 30 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 4.2 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-011G-2 Air Compressor VFD (11 kW)
| Model | GD300-21-011G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 48 A |
| Main Motor Power | 11 kW |
| Main Motor Output Current | 42 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 4.2 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-015G-2 Air Compressor VFD (15 kW)
| Model | GD300-21-015G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 60 A |
| Main Motor Power | 15 kW |
| Main Motor Output Current | 55 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 4.2 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-018G-2 Air Compressor VFD (18.5 kW)
| Model | GD300-21-018G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 75 A |
| Main Motor Power | 18.5 kW |
| Main Motor Output Current | 70 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 4.2 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-022G-2 Air Compressor VFD (22 kW)
| Model | GD300-21-022G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 90 A |
| Main Motor Power | 22 kW |
| Main Motor Output Current | 80 A |
| Fan Inverter Power | 1.5 kW |
| Fan Inverter Output Current | 7.5 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-030G-2 Air Compressor VFD (30 kW)
| Model | GD300-21-030G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 120 A |
| Main Motor Power | 30 kW |
| Main Motor Output Current | 110 A |
| Fan Inverter Power | 1.5 kW |
| Fan Inverter Output Current | 7.5 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-037G-2 Air Compressor VFD (37 kW)
| Model | GD300-21-037G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 145 A |
| Main Motor Power | 37 kW |
| Main Motor Output Current | 130 A |
| Fan Inverter Power | 1.5 kW |
| Fan Inverter Output Current | 7.5 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-045G-2 Air Compressor VFD (45 kW)
| Model | GD300-21-045G-2 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 220V |
| Rated Input Current | 175 A |
| Main Motor Power | 45 kW |
| Main Motor Output Current | 160 A |
| Fan Inverter Power | 3 kW |
| Fan Inverter Output Current | 11 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-015G-4 Air Compressor VFD (15 kW)
| Model | GD300-21-015G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 33 A |
| Main Motor Power | 15 kW |
| Main Motor Output Current | 32 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 3 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-018G-4 Air Compressor VFD (18.5 kW)
| Model | GD300-21-018G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 38 A |
| Main Motor Power | 18.5 kW |
| Main Motor Output Current | 38 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 3 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-022G-4 Air Compressor VFD (22 kW)
| Model | GD300-21-022G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 45 A |
| Main Motor Power | 22 kW |
| Main Motor Output Current | 45 A |
| Fan Inverter Power | 1 kW |
| Fan Inverter Output Current | 3 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-030G-4 Air Compressor VFD (30 kW)
| Model | GD300-21-030G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 60 A |
| Main Motor Power | 30 kW |
| Main Motor Output Current | 60 A |
| Fan Inverter Power | 1.5 kW |
| Fan Inverter Output Current | 3.7 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-037G-4 Air Compressor VFD (37 kW)
| Model | GD300-21-037G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 75 A |
| Main Motor Power | 37 kW |
| Main Motor Output Current | 75 A |
| Fan Inverter Power | 1.5 kW |
| Fan Inverter Output Current | 3.7 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-045G-4 Air Compressor VFD (45 kW)
| Model | GD300-21-045G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 93 A |
| Main Motor Power | 45 kW |
| Main Motor Output Current | 92 A |
| Fan Inverter Power | 3 kW |
| Fan Inverter Output Current | 6.8 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-055G-4 Air Compressor VFD (55 kW)
| Model | GD300-21-055G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 112 A |
| Main Motor Power | 55 kW |
| Main Motor Output Current | 115 A |
| Fan Inverter Power | 3 kW |
| Fan Inverter Output Current | 6.8 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-075G-4 Air Compressor VFD (75 kW)
| Model | GD300-21-075G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 146 A |
| Main Motor Power | 75 kW |
| Main Motor Output Current | 150 A |
| Fan Inverter Power | 3 kW |
| Fan Inverter Output Current | 6.8 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
INVT GD300-21-090G-4 Air Compressor VFD (90 kW)
| Model | GD300-21-090G-4 |
|---|---|
| Series | INVT GD300-21 |
| Brand | INVT |
| Product Type | Air Compressor Variable Frequency Drive |
| Voltage Class | 3PH 380V |
| Rated Input Current | 175 A |
| Main Motor Power | 90 kW |
| Main Motor Output Current | 180 A |
| Fan Inverter Power | 4 kW |
| Fan Inverter Output Current | 9.5 A |
| Applications | Screw compressors, rotary compressors, industrial compressed-air systems and process machinery |
Selection notice: Confirm main-motor current, fan-motor data, voltage class, compressor type, operating demand and official technical specifications before ordering.
INVT GD300-21 Applications
- Screw air compressors
- Rotary air compressors
- Industrial compressed-air systems
- Process-control machinery
- Heavy-duty industrial equipment
- Manufacturing plants
- Workshops and utility systems
- Energy-efficient compressor retrofits
INVT GD300-21 Manual, Catalogue and Datasheet
Download the official INVT GD300-21 catalogue and installation manual using the buttons at the top of this product page. The documentation includes model selection, main-motor and fan-inverter wiring, compressor-control parameters, commissioning and troubleshooting.
The documentation applies to models including GD300-21-022G-2, GD300-21-045G-2, GD300-21-055G-4, GD300-21-090G-4 and the other GD300-21 models listed on this page.
Frequently Asked Questions About INVT GD300-21 VFD
Find answers about air-compressor applications, main-motor and fan control, voltage classes, model selection, manuals and quotations.
What is the INVT GD300-21 Series VFD?
The INVT GD300-21 is a dedicated variable frequency drive designed for air-compressor systems and coordinated main-motor and cooling-fan control.
Which applications use the GD300-21?
Typical applications include screw compressors, rotary compressors, industrial compressed-air systems, process machinery and heavy-duty industrial equipment.
What is the main advantage of GD300-21?
The GD300-21 combines precise main-motor control with a dedicated fan inverter section, helping improve compressor efficiency and system integration.
Which voltage classes are listed?
The listed range includes three-phase 220 V and three-phase 380 V models.
What is the main-motor power range?
The listed main-motor power range is 7.5 kW to 45 kW for 220 V models and 15 kW to 90 kW for 380 V models.
Does the GD300-21 control a cooling fan?
Yes. The listed models include a dedicated fan-inverter power and output-current rating.
What is the GD300-21-022G-4 model?
The GD300-21-022G-4 is a 22 kW three-phase 380 V air-compressor drive with a listed main-motor output current of 45 A and a 1 kW fan inverter.
What is the GD300-21-045G-2 model?
The GD300-21-045G-2 is a 45 kW three-phase 220 V air-compressor drive with a listed main-motor output current of 160 A and a 3 kW fan inverter.
Can GD300-21 improve energy efficiency?
Yes. Variable-speed compressor operation can reduce unnecessary energy consumption by matching motor speed to air demand when the system is correctly designed and configured.
Can GD300-21 be used for screw compressors?
Yes. It is suitable for compatible screw-compressor systems when correctly selected and commissioned.
Where can I download the GD300-21 manual?
Use the Product Manual button at the top of the product page for wiring, parameters, compressor-control functions, commissioning and troubleshooting.
Where can I download the GD300-21 catalogue?
Use the Product Brochure button at the top of the page for model selection and electrical ratings.
How do I select the correct GD300-21 model?
Selection should consider main-motor power, rated current, supply voltage, fan-motor power, compressor type, load profile and operating environment.
Does ICS India provide GD300-21 technical support?
Integrated Control Solutions provides product-selection and technical assistance. Programming and commissioning support depends on the project scope.
How can I request a GD300-21 quotation?
Send the complete model number, compressor motor data, fan motor data, voltage, quantity and delivery location to the ICS India sales team.
Need Help Selecting the Correct GD300-21 Model?
Share your compressor motor power, rated current, fan motor data, supply voltage, compressor type and required quantity with the ICS India technical team.
Additional information
| brand | Optima |
|---|
