240v single phase to 208v 480v three phase step up transformer

Product Overview

The 240V Single Phase to 208V/480V Three Phase Step Up Transformer is an industrial-grade AC-DC-AC power conversion system specifically designed for locations where only 240V single-phase electricity is available but industrial equipment requires 208V or 480V three-phase power.

Unlike conventional transformers that only increase voltage, this intelligent converter not only steps the voltage up but also generates a balanced three-phase pure sine wave output, enabling three-phase motors and industrial machinery to operate from a standard residential or commercial single-phase power source.

It is an ideal solution for workshops, farms, construction sites, remote factories, commercial buildings, maintenance facilities, and temporary installations where installing utility three-phase service would be expensive or impractical.

Key Features

Pure Sine Wave Output for Industrial Equipment

Powered by a high-performance DSP digital controller and intelligent IPM modules, the converter performs AC-DC-AC conversion with precision voltage regulation and multi-stage filtering. The result is a clean, balanced three-phase sine wave with low harmonic distortion, ensuring smooth motor operation, reduced vibration, lower operating temperatures, and extended equipment life.

Wide Input Voltage Range

Designed to operate reliably under unstable grid conditions, the converter accepts an input voltage range of 180V–250V AC, making it suitable for rural areas, remote facilities, generator-powered systems, and locations experiencing frequent voltage fluctuations.

Heavy-Duty Industrial Construction

The unit features a reinforced steel enclosure, industrial-grade electronic components, and an intelligent cooling system for continuous full-load operation. It is capable of driving heavy-duty equipment such as air compressors, pumps, CNC machines, hydraulic systems, welding equipment, and industrial fans.

Comprehensive Safety Protection

An integrated protection system continuously monitors operating conditions to safeguard both the converter and connected equipment. Built-in protections include over-voltage, under-voltage, overload, over-current, short circuit, over-temperature, phase loss, and ground fault protection.

Plug-and-Play Installation

Compared with applying for utility three-phase service, upgrading transformers, or rewiring an entire facility, this converter requires only a standard single-phase power connection. Installation is straightforward, reducing both project costs and commissioning time.

Multiple Power Ratings Available

The product is available in capacities from 1.5 kW to 40 kW, with support for both 50 Hz and 60 Hz systems and configurable 3P3W or 3P4W output wiring to meet different regional standards.

Technical Specifications

Working Principle

The converter adopts a proven AC-DC-AC conversion topology.

First, the incoming 240V single-phase AC power is rectified into stable DC power. The DC bus is then stabilized using high-capacity capacitors before a DSP-controlled inverter converts the DC power into a balanced three-phase AC waveform. Finally, advanced filtering circuits eliminate switching noise and harmonics to produce a stable, utility-grade 208V or 480V three-phase output.

Compared with traditional Scott-T transformers or rotary phase converters, this inverter-based technology offers superior voltage balance, higher efficiency, faster dynamic response, and improved compatibility with modern industrial equipment.

Typical Applications

This converter is widely used in locations where industrial three-phase equipment must operate without access to utility three-phase power.

Common applications include:

• Manufacturing Workshops: CNC machines, milling machines, lathes, drilling machines, and small production lines.

• Agricultural Operations: Irrigation pumps, grain processing equipment, livestock ventilation systems, and feed mixers.

• Construction Sites: Portable compressors, welding machines, concrete mixers, and temporary power systems.

• Equipment Testing: Factory testing, laboratories, maintenance workshops, and product development facilities.

• Commercial and Remote Locations: Garages, repair shops, warehouses, remote factories, mining sites, and off-grid installations.

Compatible Equipment

The converter is suitable for powering a wide range of industrial equipment, including:

• Three-phase induction motors

• Air compressors

• Water pumps

• Hydraulic power units

• HVAC systems

• Industrial refrigeration equipment

• Welding machines

• Packaging machinery

• Textile equipment

• Woodworking machines

• Metalworking machinery

• Conveyor systems

• Injection molding machines

Available Power Ratings

Why Choose an AC-DC-AC Phase Converter?

Many people assume a conventional transformer can convert 240V single-phase into 480V three-phase. In reality, a transformer can only change voltage—it cannot generate the additional phases required for three-phase power.

Our AC-DC-AC converter combines phase conversion and voltage transformation into a single unit, delivering balanced three-phase output with excellent power quality. Compared with traditional phase conversion methods, it offers lower harmonic distortion, higher efficiency, superior motor performance, comprehensive protection features, and significantly simpler installation.

Whether you need 240V Single Phase to 208V Three Phase or 240V Single Phase to 480V Three Phase power, this solution provides a reliable, cost-effective alternative to installing utility three-phase service.