Three Phase Inverter

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0.75 kW Frequency Inverter, 3 Phase 240V, 415V, 480V

GK3000-4T0007G

Affordable price 0.75kw (1 hp) frequency drive inverter, 3 phase inverter 240V, 415V, 480V to be optioned. Rated current 21A at 380v~ 480V, 3.8A at 220V~240V. 3 phase inverter with sensorless vector control can work at (–10℃, 40℃). Come with RS485 communication mode, vfd inverter 3 phase has IP20 enclosure rating.

$206.49

1.5 kW Frequency Inverter, 3 Phase 230V, 400V, 480V

GK3000-4T0015G

1.5kw variable frequency inverter for sale, vfd inverter 3 phase 230V, 400V, 480V, rated current 3.8A at 380V ~ 480V, 5.1A at 220V ~ 240V. Control mode includes V/F or sensorless vector. Come with an IP20 enclosure rating, 3 phase variable frequency drive has cooling fans to keep the interior temperature. and power a wide variety of equipment, such as three-phase motors, pumps, and fans.

$218.41

2.2 kW Frequency Inverter, 3 Phase 208V, 380V, 480V

GK3000-4T0022G

2.2 kW 3-phase inverter, variable frequency inverter 208V, 380V, 480V. Equipped with an IP20 enclosure rating, the 3-phase VFD inverter offers strong impact resistance and high safety performance. With RS485 communication, the PID controller of the frequency drive inverter makes it convenient to make a closed-loop system. Easy to install and use.

$280.48

3.7 kW Frequency Inverter, 3 Phase 220V, 380V, 480V

GK3000-4T0037G

Favorable price 3.7 kW vfd inverter, 3 phase variable frequency drive 220V, 380V, 480V. Input frequency 50Hz/ 60Hz, output frequency 0~1000Hz, current vector control, and V/F control mode for 3 phase motor speed control. With RS485 communication mode, the frequency drive inverter has an IP 20 enclosure rating, durable and rugged.

$293.51

5.5 kW Frequency Inverter, 3 Phase 230V, 380V, 460V

GK3000-4T0055G

5.5 kW variable frequency drive inverter, input voltage 3 phase 208V /380V /480V AC ±15% can be optional, and output voltage 3 phase AC 0~input. With V/F and sensorless vector control, 3 phase inverter can work at (–10℃, 40℃), RS485 communication mode, and IP20 enclosure rating. 7.5 hp three phase inverter is widely used for three phase asynchronous motors.

$415.08

7.5 kW Frequency Inverter, 3 Phase 208V, 400V, 480V

GK3000-4T0075G

7.5kw variable frequency inverter, 3 Phase 230V, 380V, 460V, RS485 communication mode. The frequency drive inverter has V/F control and sensorless vector control, and the start torque is 150% of the rating torque at 1 Hz. Equipped with a cooling fan and protected by an IP20 casing, the 3 phase variable frequency drive is made of solid material and has strong impact resistance. Stable performance and easy to install.

$463.25

11 kW Frequency Inverter, 3 Phase 220V, 400V, 460V

GK3000-4T0110G

11 kW variable frequency inverter, 3 phase 220V, 400V, 460V, Input frequency 50Hz/ 60Hz, output frequency 0~1000Hz, and RS485 communication mode. Equipped with an intelligent cooling fan, the 3 phase variable frequency drive. Equipped with intelligent cooling fan, the 3 phase variable frequency drive can maintain the working temperature of internal electronic components, protect the safety of electronic parts, and ensure stable performance.

$634.44

15 kW Frequency Inverter, 3 Phase 230V, 420V, 480V

GK3000-4T0150G

15kw variable frequency drive inverter, 20 hp 3 phase inverter with RS485 communication mode. Comes with cooling fans and IP 20 strong impact resistance, and the 3 phase variable frequency inverter works at (–10℃, 40℃). An Interior PID controller is convenient for making a closed-loop system. It is widely applied in Industrial production lines, construction, air conditioning systems, and energy generation.

$697.14

18.5 kW Frequency Inverter, 3 Phase 220V, 400V, 480V

GK3000-4T0185G

18.5kw 3 phase inverter for sale, RS485 communication mode, automatic voltage regulation (AVR) can keep constant output voltage when power source voltage varies. Come with an IP20 enclosure rating, a frequency drive inverter that has good impact resistance, and a durable shell. The powerful protection mechanism and versatile application of three-phase inverters make them suitable for various industrial, commercial, and residential purposes.

$992.18

22 kW Frequency Inverter, 3 Phase 220V, 440V, 480V

GK3000-4T0220G

22kW (30 hp) three phase inverter 208V, 440V, 460V, IP20 protection level, RS485 communication mode. Equipped with the electronic display screen, clear numbers, and convenient and timely adjustment of inverter parameters. Rated current 45A at 380V to 480V, 91A at 220V to 240V. The three-phase inverters with sensorless vector control are widely used in high-efficiency scenarios such as heavy machinery, motors, and equipment.

$1,264.30

30 kW Frequency Inverter, 3 Phase 240V, 420V, 480V

GK3000-4T0300G

30 kW (40 hp) reliable frequency inverter, 3 phase 240V/420V/480V for choice. Rated current is 60A at 380V ~ 480V, and 112A at 220V ~ 240V. Excellent overload capacity, as evidenced by 150% of rated current for 1 minute, 180% of rated current for 3 seconds. The 30 kW variable frequency drive has numerous applications across various fields and industries, such as industrial automation, pumping stations, wind turbines, irrigation pumps, food and beverage industry, power generation, etc.

$1,497.31

37 kW Frequency Inverter, 3 Phase 230V, 440V, 480V

GK3000-4T0370G

Affordable 37 kW frequency inverter on sale, three-phase 230V, 440V, 480V energy-saving variable frequency drive for 3 phase motor speed controls, high start torque, and high efficiency. The 50 hp inverter drive has a rated sync speed of ≤ ±0.5%, an IP 20 protection rating, and operates at (-10℃, 40℃). If the ambient temperature exceeds 40℃, the inverter drive will derate by 5% for every 1℃ increase.

$1,781.14

45 kW Frequency Inverter, 3 Phase 220V, 415V, 460V

GK3000-4T0450G

45 kW (60 hp) three phase 240V, 380V, 480V frequency drive inverter, output 3 phase AC 0~input voltage, input frequency 50Hz/ 60Hz. RS485 communication mode and IP20 protection rating. Automatic torque of variable frequency drive inverter boost, manual torque boost 0.1%~30.0%. It is widely applied in industrial transformers, motors, and so on.

$2,193.10

55 kW Frequency Inverter, 3 Phase 240V, 380V, 480V

GK3000-4T0550G

55 kW 3 phase inverter 240V, 380V, 480V with high frequency resolution, analog setting: 0.1% of max frequency; digital setting: 0.01Hz. Come with V/F control and sensorless vector control, a 75 hp high frequency inverter has IP 20 and works at (–10℃, 40℃). Humidity 5%-95%, without condensation. It is usually applied for motor drives, robotics, solar power systems, wind turbines

$2,591.20

75 kW Frequency Inverter, 3 Phase 220V, 380V, 460V

GK3000-4T0750G

75 kW (100 hp) 3 phase inverter with IP20 enclosure rating, output voltage 3 phase AC 0~input voltage, and Input voltage 3 phase 230V /400V /460V AC ±15%. The high frequency inverter with sensorless vector control can work at (–10℃, 40℃). Equipped with forced air cooling and RS485 communication mode, three phase inverter's speed regulation reaches 1:100.

$3,197.41

90 kW Frequency Inverter, 3 Phase 230V, 400V, 460V

GK3000-4T0900G

90 kW 3 phase inverter 230V, 400V, 460V, IP 20 enclosure rating, V/F control mode, 5%-95%, without condensation. The 3 phase variable frequency inverter with input frequency 50Hz / 60Hz has good performance, such as overcurrent protection, overvoltage protection, and undervoltage protection. The variable frequency inverter usually applies for electric vehicles, power generation, marine, and aerospace.

$3,741.60

110 kW Frequency Inverter, 3 Phase 208V, 380V, 460V

GK3000-4T1100G

Affordable price 110 kW frequency drive inverter, 3 phase 208V, 380V, 460V, IP 20 enclosure, and RS485 communication mode. 150hp variable frequency inverter input frequency can choose 50Hz or 60Hz. Start torque reaches 150% of rating torque at 1Hz. 3 phase inverter with output voltage 3 phase AC 0~input voltage can work at (–10℃, 40℃).

$4,882.54

160 kW Frequency Inverter, 3 Phase 240V, 400V, 480V

GK3000-4T1600G

Reliable 160 kW variable frequency inverter, 3 phase inverter input voltage 240V /420V /480V AC ±15% can be optional. RS485 communication, speed regulation reach 1:100. 3 phase variable frequency drive with IP20 protection, operates at (–10℃, 40℃). The 200 hp frequency inverter can vary the motor speed and reduce the inrush current of the motor during start-up. High start torque and high efficiency.

$6,979.36

220 kW Frequency Inverter, 3 Phase 220V, 415V, 460V

GK3000-4T2200G

220 kW frequency drive inverter, 3 phase variable frequency drive 220V, 415V, 460V. Come with sensorless vector control mode, three phase inverter has RS485 communication and an IP20 enclosure rating. Speed regulation up to 1:100 and input frequency reaches 50Hz or 60Hz. 300 hp inverter is widely used for industrial motor drives, renewable energy systems, UPS, EVs, etc.

$9,813.41

A three-phase frequency inverter — also called a three-phase VFD or AC drive — controls the speed and torque of a three-phase AC motor by adjusting the frequency and voltage of its three-phase output. It takes three-phase AC input and outputs three-phase AC at variable frequency, enabling precise motor speed control from near-zero RPM to well above rated speed.

Three-phase VFDs are the standard choice for industrial and commercial applications where three-phase power is available: electric motors, pumps, fans, compressors, conveyors, CNC machinery, and HVAC systems. Compared to single-phase configurations, three-phase drives offer higher efficiency, lower input current per phase, and support for larger motor ratings.

Inverter.com stocks GK3000-series three-phase VFDs from 0.75kW to 220kW, including 480V input models for North American industrial installations. Some in-stock products can be shipped from Los Angeles, CA.

Key Features of a Three-Phase VFD:

Three-phase output: Delivers balanced three-phase AC power at adjustable frequency (0–400 Hz), providing full torque control for three-phase motors across the entire speed range.
High efficiency: GK3000-series drives achieve conversion efficiency above 95%, minimizing heat generation and energy loss under full-load conditions.
Multiple control modes: Supports V/F control for general applications and sensorless vector control for applications requiring precise torque regulation without a shaft encoder.
Industrial communication: RS-485 Modbus RTU is standard on all models, enabling integration with PLCs, SCADA systems, and building automation.
Built-in protection: Overload, over-temperature, phase-loss, short-circuit, and under-voltage protection are standard. Select models include a built-in braking unit for rapid deceleration.

What are the Benefits of a Three-Phase Frequency Inverter?

Energy savings: Fan and pump loads follow the Affinity Laws — reducing motor speed by 20% cuts power consumption by nearly 50%. VFD control eliminates the energy waste of throttling valves and inlet dampers.
Power quality: Three-phase drives produce lower harmonic distortion than single-phase equivalents and provide more stable voltage output, protecting sensitive equipment downstream.
Load balancing: Balanced three-phase distribution reduces per-phase current and thermal stress on wiring and switchgear, extending installation life.
High power capability: Three-phase VFDs scale efficiently from 0.75kW to hundreds of kilowatts without the input current penalties of single-phase configurations.
Improved motor performance: Sensorless vector control provides smooth torque delivery and faster dynamic response than V/F control, reducing mechanical stress on couplings and gearboxes.
Scalability: GK3000-series drives use a modular design; upgrading to a higher power rating requires only a drive swap, with no wiring changes to the control circuit.

Frequently Asked Questions

Q1: What is the difference between a three-phase VFD and a single-to-three-phase VFD?
A1: A three-phase VFD requires a three-phase AC input and is used where a three-phase supply is already available. A single-to-three-phase VFD accepts single-phase input and converts it to three-phase output, for use where only single-phase power is available. If your facility has three-phase service, a three-phase input VFD is more efficient and supports higher power ratings.
Q2: Do your three-phase VFDs support 480V input?
A2: Yes. Inverter.com stocks 480V three-phase input VFDs from 0.75kW through 220kW, designed for North American industrial installations.
Q3: What communication protocols do the GK3000 VFDs support?
A3: RS-485 Modbus RTU is standard on all GK3000-series three-phase VFDs, suitable for most PLC and SCADA integration. Contact our technical team for custom protocol requirements.
Q4: Can three-phase VFDs be used for pump and fan speed control?
A4: Yes — pump and fan control is one of the most common VFD applications. The built-in PID controller supports direct connection of a pressure or flow sensor for closed-loop control. Reducing fan or pump speed by 20% typically cuts energy consumption by close to 50% due to the Affinity Laws.