A Single Phase Transformer is one of the most widely used electrical devices for voltage conversion, isolation, and power regulation in residential, commercial, and light industrial environments. Unlike three-phase transformers that handle large-scale industrial loads, single phase transformers are ideal for lower power requirements where efficiency, reliability, and compact design are essential.
At ZHENGXI, we manufacture a complete range of high-quality single phase transformers designed to meet international standards (IEC, ISO, CE, FCC, RoHS). Whether you need a step-down transformer for appliances, an isolation transformer for safety, or a control transformer for machinery, we provide tailored solutions at competitive single phase transformer prices.
Customized Quality Variable Audio Amplifier Power Toroidal Transformer
The Customized Quality Variable Audio Amplifier Power Toroidal Transformer from ZHENGXI is designed to deliver exceptional audio fidelity and electrical isolation for professional audio systems. As a trusted toroidal transformer supplier, ZHENGXI specializes in manufacturing custom audio transformers that ensure minimal distortion, ultra-low noise, and perfect impedance matching — ideal for high-end amplifiers, recording equipment, broadcasting systems, and studio-grade sound engineering.
Unlike conventional EI-core transformers, toroidal transformers feature a circular core design that provides superior efficiency, low electromagnetic interference (EMI), and excellent frequency response across the 20Hz to 20kHz audio spectrum.
500VA–5000VA Single Phase Step Up and Down Voltage Converter 110v to 220v
The ZHENGXI 500VA–5000VA Single Phase Step Up and Down Voltage Converter is perfect for small industrial devices, office electronics, and home appliances used in various locations since it can securely and effectively convert voltages between 110V–120V and 220V–240V.
High efficiency, low heat generation, and low noise are features of the SDT series, which is constructed with a toroidal copper-core transformer. This device provides steady, clean power to safeguard your priceless equipment, whether you're stepping down from 220V to 110V or up from 110V to 220V.
Single Phase Toroidal Isolation Transformer 220v To 220v With 2 Output Sockets
This 220V to 220V single-phase toroidal isolation transformer is made to supply delicate electronic and audio devices with clean, steady, and noiseless power. It efficiently isolates electrical noise and interference using high-efficiency toroidal core technology, guaranteeing connected devices operate at their best and are safe.
With two outputs and a smart HD LCD display, users can effortlessly keep an eye on operating condition, load, and voltage in real time. This isolation transformer provides clean power, low electromagnetic interference, and long-term reliability whether it is utilized in industrial control systems, medical equipment, audio systems, or labs.
TC 100va-5Kva Portable Small Step Up And Down Voltage Converter 110v To 220v Transformer
The TC Series Portable Step Up and Down Voltage Converter is designed for users who need to operate electrical appliances with different voltage standards. This reliable 110V to 220V transformer efficiently converts power between 110V–120V and 220V–240V, ensuring safe and stable performance for your devices anywhere in the world.
With its dual-core design, the 110 To 220 Transformer works both ways:
- Converts 110V to 220V (step-up)
- Converts 220V to 110V (step-down)
Simply select the correct input voltage for your region using the built-in voltage selector switch — available options: 110V / 220V / 230V / 240V. The corresponding output provides clean and stable AC power for your equipment.
Single-Phase 220V To Three-Phase 380V Phase Converter
The DZW series is a compact, high-performance Single-Phase To Three-Phase transformer alternative — a smart Phase Converter that turns ordinary 220V single-phase mains into reliable three-phase 380V power. Using advanced SVPWM (space-vector PWM) modulation together with rectification, frequency conversion, inversion and voltage boosting, the unit delivers a true three-phase sine wave with harmonic distortion below 2% and excellent transient response.
JMB Single-Phase Portable Lighting Step Down Control Transformer 25Va~50Kva
The JMB series is our rugged, portable single-phase control transformer built for lighting and small industrial equipment. It steps down common mains voltages to isolated, Safety Extra-Low Voltage (SELV) outputs — ideal for damp job sites, confined spaces and metal enclosures where safety matters. Available from 25 VA up to 50 kVA, with multiple taps and optional protective features.
GBK2 Single Phase 220v To 220v Toroidal Balanced Isolation Transformer 300va-2Kva
Ensure pristine power quality and maximum safety for sensitive loads with the GBK2 toroidal isolation transformer. Designed for applications that demand low noise, low leakage and stable output (220V → 220V), the GBK2 series isolates your equipment from mains disturbances, suppresses transients and reduces common-mode interference. Its compact toroidal core delivers higher efficiency and lower audible hum than conventional laminated transformers—ideal for medical devices, pro audio, laboratory instruments and industrial controls.
JBK 25va-5000va Single Phase Dry Type Machine Control Isolation Transformer 220v to 110v
The JBK series is a compact dry-type control transformer designed for machine control and isolation in industrial panels. Typical use is 220 V → 110 V control circuits for contactors, relays, PLCs and sensors. Built for low noise, high reliability and easy cabinet mounting, JBK protects control circuits from mains disturbances while simplifying wiring and maintenance.
Bk 100va-5kva Single Phase Isolation Control Power Transformer
The BK series single-phase isolation control power transformer (commonly called a BK transformer) delivers stable, isolated control voltages for industrial and commercial equipment. Available from 100 VA to 5 kVA, the unit uses a thyristor (SCR) control module with feedback to provide precise closed-loop voltage regulation even when the input supply fluctuates.
This control transformer is built to international safety and efficiency standards and is perfect for CNC machines, PLCs, automation panels, lighting circuits, and other precision systems that need a stable control supply.
Applications of Single Phase Transformers
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Residential – Home appliances, lighting systems, and small HVAC units.
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Commercial – Office equipment, data systems, and medical devices.
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Industrial – Control circuits, CNC machines, testing equipment, and instrumentation.
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Renewable Energy – Small-scale solar or wind applications requiring voltage regulation.
Why Choose ZHENGXI Single Phase Transformers?
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20+ years of manufacturing expertise in power solutions.
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Customized designs to match your exact voltage and capacity requirements.
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Global customer base, trusted by clients in energy, manufacturing, construction, and utilities.
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Competitive single phase transformer prices with guaranteed quality and after-sales support.
FAQ
1. What is the difference between a single phase and three phase transformer?
Single phase transformers are designed for smaller loads and simpler distribution systems, while three phase transformers handle heavy industrial power requirements.
2. Can a single phase transformer be used for industrial applications?
Yes. Many light industrial machines, control circuits, and automation systems run efficiently on single phase transformers.
3. How do I choose the right transformer capacity?
Calculate the total load in kVA or VA and select a transformer rated at least 20% higher than your maximum demand for safe operation.
4. What affects the single phase transformer price?
The price depends on capacity (VA/kVA), type (step-down, isolation, control), winding material (copper/aluminum), and additional safety features.
5. How long do single phase transformers last?
With proper maintenance, high-quality units can last 15–25 years or longer.
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