Best Step-Up Transformer Manufacturer
Single-phase step-up transformers for residential and commercial applications, and three-phase transformers for industrial use.
As a professional step-up transformer manufacturer, we supply single phase and three phase transformers with flexible input/output voltage options, global certifications, and OEM customization support.
👉 Send us your voltage & load details — our engineers will recommend the right transformer within 24 hours.
- ISO9001, ISO14001, ISO45001, CE, RoHS , FCC Certified
- Over 20 Years of Manufacturing Experience
- Global Export to 50+ Countries
- OEM & ODM Available
Step-up transformers are designed to increase AC voltage from a lower level to a higher level, ensuring stable, safe, and compliant power supply for industrial equipment, export machinery, and international projects.
What Is a Step-Up Transformer?
A step-up transformer is an AC transformer that converts low input voltage to higher output voltage by increasing the number of turns on the secondary winding. It is commonly used when equipment requires a higher operating voltage than the available power source.
Typical examples:
110V → 220V
220V → 380V / 400V / 480V
208V → 480V (industrial systems)
Unlike voltage stabilizers or inverters, a step-up transformer does not change frequency or waveform, only voltage level.
Step-Up Transformer Types We Offer
Single Phase Step-Up Transformer
Best for light to medium loads
Single phase transformers are widely used for small industrial machines, laboratory equipment, HVAC units, and export appliances.
Features:
Input: 110V / 120V / 220V / 240V
Output: 220V / 230V / 240V (customizable)
Power range: 100VA – 20kVA
Compact size, low noise
Optional isolation design
Applications:
Imported/exported machinery
Control panels
Medical & lab equipment
OEM power solutions
👉 Need a single phase step-up transformer? Send us your voltage & power.
Three Phase Step-Up Transformer
Designed for industrial & heavy-duty systems
A three phase step-up transformer is ideal for motors, compressors, CNC machines, pumps, and production lines, offering better efficiency and load balance.
Features:
Input: 208V / 220V / 380V / 400V
Output: 380V / 400V / 415V / 480V
Power range: 5kVA – 2000kVA
Delta / Star (Δ/Y) configurations
Indoor or outdoor design
Applications:
Industrial plants
Mining & construction sites
Data centers
Renewable energy systems
👉 Upload your three-phase wiring diagram — we help confirm configuration.
Single Phase vs Three Phase Step-Up Transformer
| Item | Single Phase Transformer | Three Phase Transformer |
|---|---|---|
| Power Capacity | Low to medium | Medium to high |
| Typical Load | Small equipment | Motors & production lines |
| Efficiency | Good | Higher |
| Installation | Simple | Requires phase balance |
| Cost | Lower | More economical per kVA |
Not sure which one you need?
👉 Tell us your load type and power — our engineers will advise.
Key Specifications of Our Step-Up Transformers
| Parameter | Options |
|---|---|
| Voltage Range | 110V–690V (custom) |
| Phase | Single phase / Three phase |
| Frequency | 50Hz / 60Hz |
| Power Rating | 100VA – 2000kVA |
| Insulation Class | B / F / H |
| Cooling | Natural air / Forced air |
| Protection | Overload, short circuit (optional) |
| Enclosure | IP00 / IP23 / IP54 |
| Certification | ISO9001, CE, IEC, (on request) |
Typical Applications of Step-Up Transformers
Industrial machinery voltage matching
Export equipment power adaptation
Factory production lines
Motor & pump systems
Laboratory & testing equipment
Renewable energy & power distribution
Each application has different surge current, duty cycle, and insulation requirements — proper selection avoids overheating and failure.
How to Choose the Right Step-Up Transformer
Before requesting a quote, please prepare:
Input voltage & output voltage
Single phase or three phase
Rated power (kVA)
Load type (motor / resistive / mixed)
Frequency (50Hz or 60Hz)
Installation environment (indoor/outdoor)
Required certifications
Quantity & delivery time
👉 Fill out our quick RFQ form — engineering response within 24h.
Why Choose Us as Your Step-Up Transformer Supplier?
- 20+ years manufacturing experience
- OEM & ODM customization
- Strict testing & quality control
- Global export support
- Fast quotation & engineering support
FAQ
Here you can find answers to some frequently asked questions about AC transformers. If you have any other questions, you can visit our dedicated FAQ page! Visit [FAQ Page]. Please read our Transformer Purchase Guide before making a selection.
Q1: Can a step-up transformer work in reverse?
Yes, most transformers are reversible, but insulation and protection must be checked.
Q2: Does a step-up transformer change frequency?
No. Frequency remains the same.
Q3: How much power margin should I reserve?
Normally 20–30%, more for motor loads.
Q4: Do you offer custom voltage combinations?
Yes. Custom input/output voltages are available.
Get a Quote for Step-Up Transformers
Whether you need a single phase transformer for OEM equipment or a three phase step-up transformer for industrial projects, our engineering team is ready to support you.
👉 Send your parameters now — get a professional selection & quotation fast.