4kW Single Phase to 3 Phase Converter

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SKU: PH-SP3PC-4KW

$3,979.99

● Provides 4kW three phase power from single phase supply, suitable for pumps, compressors, and machine tools. ● Delivers pure sine wave output with high efficiency and low harmonic distortion. ● Compatible with multiple input voltages and three phase output options. ● Built-in LCD monitoring and protection system for safe and stable operation.

Input Voltage (Single phase) *
Output Voltage (Three phase) *
Input Frequency *
Output Frequency *
Enclosure Type *

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⏱️ Delivery: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

Engineered for industrial power applications, the 4kW single phase to three phase power converter delivers stable three-phase output for motor-driven equipment. With pure sine wave output and low THD, the converter provides clean power for machines such as CNC systems, drilling machines, milling machines, and air compressors. Its advanced SVPWM vector control technology improves power conversion efficiency while maintaining stable voltage and frequency performance.

Note:

When the load is a motor, the phase converter should be more than 5~7 times the motor capacity.
When the load is soft start + motor, the phase converter should be more than 3 times the motor capacity.
When the load is VFD + motor, the phase converter should be more than 1.5~2 times the motor capacity.

Feature

Wide Voltage Compatibility: 1 Phase to 3 Phase converter supports multiple input voltage options and customizable output parameters.
High Quality Output Power: Generates pure sine wave three-phase power for stable equipment operation.
Advanced SVPWM Control: Improves conversion efficiency and reduces energy loss during operation.
Flexible Startup Control: Two startup modes allow better performance with inductive loads and motors.
Clean and Stable Power: Built-in filtering helps eliminate electrical interference.
Long-Term Reliability: Multiple protection functions ensure safe and stable operation.

Details

Status Display LCD: Shows operating status and key electrical parameters.
SPD: Protects internal circuits from surge voltage and power disturbances.
Circuit Breaker: Enhances system safety by preventing overload damage.
Wiring Hole: Provides organized cable routing for easy installation.
Input / Output Terminal: Ensures secure and reliable electrical connections.

Single phase to three phase converter detail

Dimension

4kw single phase to three phase converter size

Wiring Instructions

Single Phase

Split Phase

Specs

Power	4 kW (5 hp)
Weight	105kg
Output Waveform	Standard pure sine wave
Wide Voltage Input	80-320V AC (can customization)
Input Voltage	Optional: 110V/ 120V/ 220V/ 230V/ 240V/ 380V/ 415V/ 440V/ 480V single phase 2 wire
Input Current	12.3A at 230V (Input Current=Power/Input Voltage/1.414)
Output Voltage	Optional: 220V/ 380V/ 400V/ 415V/ 440V/ 480V 3 phase 4 wire+PE
Output Current	5.8A at 400V
Input Frequency	50Hz/ 60Hz
Output Frequency	50Hz/ 60Hz
Startup Mode Selection	Stable frequency step-down start or frequency start, can be selected on the LCD screen settings
Frequency Stability	≤0.01%
Load Regulation	≤3%
THD	≤2% (Linear load)
Phase Angle	120^°±1^°
Crest Factor Ratio	3:1
Circuit Mode	IPM module, SVPWM modulation
LCD Display	Output voltage, output current, output frequency, output power, fault code, time temperature, startup mode selection, setting parameters
Protection	Input under voltage, overvoltage, output over-current, short circuit, overheating etc.
Protective Reaction Time	≤2ms
Machine Efficiency	≥94%
Insulation Properties	1800V AC/ 10mA/1 min
Insulation Impedance	500V DC/ 50MΩ
Cooling Method	Forced air cooling
Noise	1m> 60dB
Ambient Temperature	-25℃~+55℃
Humidity	0~95% (No condensation)
Size	540mm(L) * 540mm(W) * 760mm(H)

Single Phase to Three Phase Converter.PDF

Application

CNC Machines

Air Compressors

Woodworking Machinery

Agricultural Equipment

FAQ

Q1: Can a 4kW single phase to three phase converter run a 5HP motor?

Yes, a 4kW phase converter can typically support motors around 5HP, depending on the startup load and operating conditions. It provides stable three-phase power from a single-phase supply for many small industrial machines.

Q2: What size single phase to three phase converter do I need?

The correct single phase to three phase converter size depends on the power rating of your motor or equipment. In most cases, the converter should have the same or higher power rating (HP or kW) than the motor to ensure reliable startup and stable operation.

1 review(s)

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From: Antonio | Date: 7/23/2026 9:49 AM

This Thing Saved My Shop – No More Begging for Three-Phase

I've got a small machine shop in my garage, and running three-phase equipment off single-phase power was always a headache. Tried a couple different solutions over the years, but nothing worked as well as this converter. Hooked it up to my lathe and milling machine and they run smooth as silk – no weird buzzing or loss of power. The LCD screen is actually useful, shows me what's going on without having to guess. Installation wasn't too bad for a guy who knows his way around a breaker panel. It's a bit heavy, but that's what you want when something's gonna run day in and day out. Price tag made me wince at first, but honestly it's way cheaper than paying the power company to run three-phase to my property. If you've got single-phase power and need to run real machinery, this thing's a lifesaver. Would buy again in a heartbeat.

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