INVT GD20 Series Variable Frequency Drives
The GD20 series by INVT is the widest budget VFD lineup on the site: 20 active models from 0.75 to 110 kW. It is the most popular INVT series for general industrial applications, offering the best balance of price, features, and reliability.
The range covers single-phase 1×220 V input (S2 sub-series, up to 2.2 kW) and three-phase 3×380 V input (sub-series -4, from 0.75 to 110 kW). IP20 enclosure, built-in ModBus RTU over RS-485, sensorless vector control (SVC), and V/f law ensure reliable control of induction motors across a broad load range.
How to Choose an INVT GD20 Model — Lineup Overview
The 20 SKUs split into two supply voltage variants. The -4 sub-series (3×380 V) covers the majority of industrial installations. The -S2 sub-series (1×220 V) suits low-power setups without three-phase supply.
Three-phase 3×380 V supply (sub-series -4)
- GD20-0R7G-4 — 0.75 kW — from 8 349 UAH
- GD20-1R5G-4 — 1.5 kW — from 8 899 UAH
- GD20-2R2G-4 — 2.2 kW — from 9 299 UAH
- GD20-004G-4 — 4.0 kW
- GD20-5R5G-4 — 5.5 kW
- GD20-7R5G-4 — 7.5 kW
- GD20-011G-4 — 11 kW
- GD20-015G-4 — 15 kW
- GD20-018G-4 — 18.5 kW
- GD20-022G-4 — 22 kW
- GD20-030G-4 — 30 kW
- GD20-037G-4 — 37 kW
- GD20-045G-4 — 45 kW
- GD20-055G-4 — 55 kW
- GD20-075G-4 — 75 kW
- GD20-090G-4 — 90 kW
- GD20-110G-4 — 110 kW
Single-phase 1×220 V supply (sub-series -S2)
- GD20-0R7G-S2 — 0.75 kW — from 6 099 UAH
- GD20-1R5G-S2 — 1.5 kW — from 7 799 UAH
- GD20-2R2G-S2 — 2.2 kW
For 4 kW and above, only three-phase 380 V supply is available. If only 220 V is present but more than 2.2 kW is needed, a step-up transformer or the INVT GD35 series should be considered.
INVT GD20 Technical Specifications
- Power range: 0.75–110 kW
- Supply voltage: 1×220 V (up to 2.2 kW) or 3×380 V (0.75–110 kW)
- Output frequency: 0–400 Hz
- Enclosure rating: IP20
- Control modes: V/f law, sensorless vector (SVC), closed-loop vector (FVC) — models from 7.5 kW
- Communication: ModBus RTU over RS-485
- Analogue inputs: 2×AI (0–10 V / 4–20 mA)
- Digital inputs: 6×DI; outputs: 1×DO + 1×RO
- Built-in braking module: up to 22 kW
- Overload capacity: 150% for 60 s, 180% for 3 s
Typical Applications for INVT GD20
- Pumps and fans — V/f control with adjustable curves and sleep mode reduce energy consumption at partial load. See drives for pumps.
- Conveyor lines — SVC delivers stable torque at start-up under load without a feedback sensor.
- Compressors and mixers — models from 11 kW with FVC mode support precise speed regulation under variable load.
- Woodworking and metalworking machines — compact form factor and straightforward commissioning make GD20 a standard choice for machine tool retrofits.
Accessories and Related Equipment
For a complete GD20 installation: braking resistors (for models above 22 kW or frequent braking cycles), input line reactors, C2/C3 EMC filters, and INVT RCB-01 remote keypad.
See also: all INVT VFDs, VFD options and accessories, full VFD catalogue.
