Voltage Converter Manufacturer | Step Up & Step Down Transformers

Do you need to run equipment across different countries where the voltages are different?

ZHENGXI design and manufacture voltage converters (step-up and step-down transformers) for the conversion of electrical power for the purposes of running equipment safely and efficiently.

QSG 10kva-100kva 3 Phase Dry-Type Autotransformer

YTR 120W 200W 300W low voltage landscape transformer with timer

YTR 120W 200W 300W outdoor low voltage landscape lighting transformer with timer

DT 500va-3000va single phase Step Up And Down Transformer for households

SDT 500va-3000va Single Phase Step Up And Down Transformer Voltage Converter for households

Voltage Power Transformer 100VA 200VA 500VA 1000VA

JMB Single Phase Construction Site Low Voltage Portable Lighting Lamp Transformer 220V 380V To 6V/12V/24V/36V/110V

What Is a Voltage Converter?

A voltage converter can be defined as a tool used for changing the voltage from a certain level to another level. In most situations, this can be accomplished with a transformer.

Use a step-up transformer for 110V → 220V
Use a step-down transformer for 220V → 110V
Choose a transformer with a capacity 1.5+ times higher

How to Choose the Right Voltage Converter

Choosing the wrong model can lead to overheating, voltage drop, or equipment damage. Here’s a simple selection logic:

1. Identify input voltage
(e.g. 110V in the US, 220–240V in most other regions)

2. Confirm required output voltage
Match your equipment nameplate exactly

3. Calculate load power correctly
Resistive loads: ≥1.5×
Inductive loads (motors, compressors): ≥3×

4. Check frequency (important but often overlooked)
50Hz and 60Hz differences may affect motors, timing devices, and transformers

5. Consider the application environment
Indoor, outdoor, high temperature, or dusty industrial sites

110V to 220V Converter Calculator

Voltage Converter Calculator

Device Rated Power (W): Load Type: Safety Margin (×):

Our Voltage Converter Types

Step-Up Transformer (110V to 220V)

Designed for exporting US/Japan equipment to 220V regions. Provides stable output for industrial and sensitive loads.

Step Down Transformer (220V to 110V)

Common for using imported appliances Widely used in commercial kitchens & homes

Isolation Transformer

Provides electrical isolation for safety Used in medical, laboratory, and industrial systems

Auto Transformer

Compact and cost-effective Suitable for stable voltage environments

Key Technical Specifications

Parameter	Description
Power (VA / kVA)	Determines load capacity
Input Voltage	110V / 220V / Custom
Output Voltage	Adjustable or fixed
Frequency	50Hz / 60Hz
Efficiency	Up to 98% (depending on model)
Cooling	Air / Fan cooling
Protection	Overload / Short circuit

Note: Specifications can be customized based on project requirements.

Typical Applications

Our voltage converters have a broad spectrum of uses that range from industrial machinery to automation systems, OEM export equipment, commercial cooking equipment, medical equipment, and construction sites where equipment is required to operate under different national voltage standards.

👉 Tell us your application – we’ll suggest the best configuration

Voltage Converter vs Other Power Devices

Transformer → changes voltage only (no stabilization)
Voltage stabilizer → stabilizes voltage but does not convert it
Inverter → converts DC to AC (different function)
UPS → provides backup power, not voltage conversion

👉 Not sure which one you need? Describe your setup — we’ll clarify quickly

Why Work With a Manufacturer (Not Just a Supplier)

From an engineering perspective, voltage converters are not “one-size-fits-all” products. Load type, startup current, duty cycle, and environment all affect performance and lifespan.

That’s why we focus on:

20+ years manufacturing experience in transformers
OEM / ODM design based on real applications
Flexible voltage, enclosure, and protection customization
Reliable production lead time for bulk and project orders
Technical support before and after delivery

Lead Time & Customization

Standard models: 5–10 days
Custom designs: 10–25 days
Bulk/project orders: flexible scheduling

We support customization of voltage, plugs, sockets, enclosure structure, and branding.

FAQ

What size voltage converter do I need?

Choose at least 20% higher than your device power. For motors or compressors, allow 3–5× startup capacity.

Can I run a 220V device on 110V?

Yes, using a step-up transformer.

Is a voltage converter the same as a transformer?

Most converters are transformers, but some include additional protection or control features.

Can I run multiple devices at the same time?

Yes — as long as the total load stays within the rated capacity.

When should I use an isolation transformer?

For sensitive, medical, or noise-critical equipment.

Get the Right Voltage Converter for Your Project

Incorrect voltage selection is one of the most common causes of equipment failure in international projects.

Send us your requirements — our engineers will review your application and recommend a suitable model with clear specifications and pricing.