5 hp (3.7 kW) VFD, 3 Phase 230V, 400V, 480V

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$293.51

Favorable price 5 hp (3.7 / 4 kW) VFD, three phase 230V, 400V, 480V, high performance vector variable frequency drive, IP20 enclosure, RS485 enabled, brand new direct sale by manufacturer.

Input Voltage (Three Phase) ±15%

SKU: GK3000-4T0037G

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Delivery date: 2-3 days

Overview
User Manual
Related Video

5 hp (3.7/4 kW) variable frequency drive, three phase 230V, 400V, 480V for selection, manufacturer direct sale.
Specification:

Basics	Model	GK3000-4T0037G/ GK3000-2T0037G
	Capacity	5 hp (3.7 kW)
	Shipping weight	3 kg
	Dimension	236130176 mm for GK3000-4T0037G/ 272172182 for GK3000-2T0037G
I/O Feature	Rated current	9A at 380V ~ 480V, 13A at 220V ~ 240V
	Input voltage	3 phase 230V /400V /480V AC ±15% (Optional)
	Input frequency	50Hz/ 60Hz
	Output voltage	3 phase AC 0~input voltage
	Output frequency	0Hz~1000Hz
	Over load capacity	150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature	Control mode	V/F control; Sensorless vector control;
	Communication	RS485
	Speed regulation	1:100
	Start torque	150% of rating torque at 1 Hz
	Speed control accuracy	≤±0.5% of rating synchronous speed
	Frequency precision	Digital setting: max frequency x± 0.01%; Analog setting: max frequency x± 0.2%
	Frequency resolution	Analog setting: 0.1% of max frequency; Digital setting: 0.01Hz
	Torque boost	Automatic torque boost, manual torque boost 0.1%~30.0%
	Interior PID controller	Be convenient to make closed-loop system
	Automatic energy save running	Optimize V/F curve automatically based on the load to realize power save running
	Automatic voltage regulation (AVR)	Can keep constant output voltage when power source voltage varies.
	Automatic current limiting	Limit running current automatically to avoid frequent over-current which will cause trip
Environment	Enclosure rating	IP 20
	Temperature	–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the debate will be 5%
	Humidity	5%-95%, without condensation
	Altitude	≤1000m; VFD will be derated if above 1000m
	Impingement and oscillation	Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
	Store environment	–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

Note: ATO VFD Cannot be used as a power source, it Can only be directly connected to an induction motor to control the motor speed.

Details

Tips: Variable Frequency Drive Overvoltage
Overvoltage alarm is generally present at downtime, the main reason is that the deceleration time is too short or the braking resistor and the braking unit are problematic. For example, a 5hp VFD displays "OU" when shutdown. Before repairing the VFD, should make sure the reason for "OU" alarm is what. Here is because during the VFD deceleration, the speed of the motor rotor winding cutting the rotation magnetic field becomes fast, the rotor electromotive force and current increases, so that the motor is in power generation state. The feedback energy flows to DC part through the diode, which connects in parallel with high-power switch tube in inverting part, and finally causes by DC bus voltage increase. So, should focus on checking the brake circuit. After measuring the discharge resistance, find there's no problem. In the measurement of the brake tube find it breakdown. Replace it and power on, even fast parking have no problem.

PDF:

GK3000 Series VFD User Manual

Quick Setup Manual & Application

VFD Troubleshooting Guide

How to Measure Circuits with a Digital Multimeter?

This video will show you how to measure electrical circuit using a digital multimeter.

VFD Two-Wire Control Wiring with Push Button for Forward Motor

In this video we've guided you through how to do VFD control wiring with a self-lock push button switch to run the motor in forward direction. We've covered everything from wiring to programming and even a test run. So just watch it through and hope you'll find it informative and helpful.

4-20mA speed Control on VFD

4-20mA is as common in analog control systems as 0~10V, and ATO GK3000 series VFDs are also perfectly compatible.

How to Control VFD with 0-10V (CI port)

This is port CI usage method for 0~10V to control the frequency of ATO GK3000 upgrade version. It is suitable for 1-phase, 1-phase to 3-phase, and 3-phase VFD.

VFD Analog Input 0-10V Frequency Control (VI Port)

ATO GK3000 VFD uses external voltage analog to control the frequency so as to achieve the purpose of motor speed regulation.

Control VFD with Potentiometer & Button (VI Port)

ATO GK3000 vector VFD supports control of synchronous motors, and supports external potentiometer and button control.

Forward and Reverse VFD Button Control

This video is for ATO GK3000 upgrade version VFD 1-phase to 3-phase & 3-phase VFD (3-wire control/external terminal control mode).

Existing reviews of 5 hp (3.7 kW) VFD, 3 Phase 230V, 400V, 480V

High frequency operation

I want to drive a 1333hz motor. Does the driver support 16kHz PWM switching frequency operation under high current conditions?

From: Kumire | Date: 10/07/2025