3.7 kW Single Phase Output Frequency Inverter

$649.59

| 5 review(s) | Add your review

3.7kW inverter with rated current 25A, input frequency 47~63Hz, starting frequency 0.40Hz~20.00Hz. With 220/230/240V AC single phase input for household supply, single phase output to drive single phase asynchronous motors.Equipped with an LED display, a 5 hp VFD driver can display real-time changes in data. The sturdy housing material and cooling fan enhance the inverter's heat dissipation capacity. Frequency inverter is usually used to control the speed of motors precisely.

Free shipping

Delivery date: 3-10 days

SKU: GK3000-1S0037

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Overview
Specs
FAQ
Reviews

Overview

3.7kw single phase variable speed drive, 1-phase 220v 50Hz/60Hz input and single phase 0-220v output. Equipped with a panel speed adjustment knob, the inverter speed can be manually adjusted, which is simple and easy to operate. The internal cooling fan can improve the inverter's heat dissipation capacity and maintain the internal temperature's stability.

Feature

A cooling fan is installed to force air cooling inside the frequency drive inverter to dissipate heat to ensure that the electronic components of the inverter will not overheat.
The LED screen displays various operating parameters, and parameters can be set through the buttons on the screen or the touch screen, allowing users to easily monitor and control the operating status of the vfd inverter.
The variable frequency drive inverter can control various industrial equipment's speed and operating status, such as conveyor belts, fans, pumps, etc.

Details

Air Vents

The single phase motor inverter is equipped with multiple vents and built-in cooling fans to keep the temperature inside the inverter stable. An internal cooling fan cools the drive's internal components and forces air circulation to accelerate heat dissipation.

Aluminum Sheet

The heat sink aluminum sheet of the frequency drive inverter for single phase motor is a kind of important heat dissipation material, which is used to regulate the internal temperature of the variable frequency inverter, protect the circuit board from heat damage, and ensure normal operation.

Electronic display of frequency inverter

LED Display

The LED screen of the frequency drive inverter can display the real-time running status to facilitate parameter setting and adjustment, provide alarm and fault information to prevent damage to single phase inverter, and prolong the service life of the 3.7kw inverter.

Applications

Power Industry

Oil Extraction

Chemical Industry

Transportation Area

Specs

Basics	Model	GK3000-1S0037
	Capacity	3.7 kW (5 hp)
	Shipping weight	7 kg
	Dimension	167170314 mm
I/O Feature	Rated current	25 A
	Input voltage	single phase AC 220V±15%
	Input frequency	47~63Hz
	Output voltage	1 phase 0～rated input voltage
	Output frequency	0~1000Hz
	Over load capacity	150% of rated current for 60s, 180% of rated current for 10s, 200% of rated current for 3s
Control Features	Control mode	V/F, Sensorless vector control (SVC), Speed sensor vector control (FVC)
	Operation command mode	Keypad control, Terminal control, Serial communication control
	Frequency setting mode	Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes.
	Start frequency	0.40Hz~20.00Hz
	Speed adjustment range	1:50
	Carrier frequency	1.0-16.0kHz, automatically adjusted according to temperature and load characteristics
	Frequency accuracy	Digital setting: 0.01Hz Analog setting: Maximum frequency * 0.05%
	Torque boost	Automatically torque boost; manually torque boost: 0.1%~30.0%
	V/f curve	Three types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
	Acceleration/deceleration mode	Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0s
	Jog operation	Jog operation frequency: 0.0Hz~maximum frequency Jog acceleration/deceleration time: 0.1s~3600.0s
	Simple PLC & multi-step speed operation	It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal.
	Built-in PID	Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)
	Automatic voltage regulation	Keep output voltage constant automatically when input voltage fluctuating
Control Function	Common DC bus	Common DC bus for several VFDs, energy balanced automatically
	Torque control	Torque control without PG
	Torque limit	"Rooter" characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process
	Wobble frequency control	Multiple triangular-wave frequency control, special for textile
	Timing/length/counting control	Timing/length/counting control function
	Over-voltage & over-current stall control	Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping
	Fault protection function	Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running status during failure & has fault automatic reset function
Input/output terminals	Input terminals	Programmable DI: 7 on-off inputs, 1 high-speed pulse input 2 programmable AI: AI1: 0～10V or 0/4～20mA A12: 0～10V or 0/4～20mA
	Output terminals	1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output) 2 relay output 2 analog output: 0/4~20mA or 0~10V
	Communication terminals	Offer RS485 communication interface, support MODBUS-RTU communication protocol
Human machine interface	LED display	Display frequency setting, output frequency, output voltage, output current, etc.
Human machine interface	Multifunction key	QUICK/JOG key, can be used as multifunction key
Environment	Ambient temperature	-10℃～40℃, derated 4% when the temperature rise by every 1℃ (40℃～50℃).
	Humidity	90%RH or less (non-condensing)
	Altitude	≤1000M: Output rated power, ＞1000M: Output derated
	Storage temperature	-20℃～60℃

Note:

The single phase motor should not be adjusted to run based on a lower frequency than 80% of its rated frequency for along time, otherwise the motor may fail.
Our frequency inverter cannot be used as a power source, it can only be directly connected to an induction motor to control the motor speed.
This frequency inverter does not control the reverse operation of the motor, if you want to reverse operation, please refer to the motor nameplate instructions.

FAQ

What are the benefits of using a frequency inverter?

Energy saving and high efficiency: The frequency drive for single phase motor can minimize energy consumption by accurately controlling the motor speed and power, then achieving the goal of energy saving and high efficiency.
Wide speed adjustment range: The variable frequency inverter has a wide speed adjustment range, from zero to maximum speed, so it is suitable for various application scenarios. This wide speed range enables inverters to meet various complex process requirements.
Precise control: The single phase inverter can accurately control the speed and power of the motor, thereby achieving precise production process control.
Protection function: The frequency drive inverter has overload, overcurrent, overvoltage, and undervoltage protection functions, which can effectively protect the motor and frequency drive inverter itself from damage.
Easy to integrate: The variable frequency drive inverter can be integrated with other automation equipment through various communication protocols to realize smart manufacturing and Internet of Things applications. This easy integration feature allows frequency inverters to be easily integrated into existing automation systems.
Increased productivity: By operating the motor at its most efficient speed, single phase inverter reduces the chance of errors, thereby increasing production levels. This helps generate higher revenue for the business.

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Existing reviews

It’s a solid option for home or light industrial use.

I’ve been using this 3.7 kW frequency inverter to run a single-phase motor in my workshop, and it does the job—startup is smooth, and speed control is spot on. The LED display is handy for checking real-time data. My only gripe is the cooling fan—it kicks in often and can be a bit loud in a quiet space.

From: Blair Elinor | Date: 4/15/2025 12:22 AM