110V to 220V / 220V to 110V Step Up & Step Down Transformers
Designed for distributors, importers, OEM buyers, contractors and project procurement teams, our single phase transformers provide dependable voltage conversion for household, commercial and light industrial equipment across international markets.
- Bidirectional conversion: 110V ↔ 220V
- 50/60Hz compatible for global usage
- Plug or terminal connection options
- Power options from 100VA to 10000VA
- Fuse / MCB protection available
- 12-month product warranty
≥80%
Operational efficiency
2-Way
Voltage step up and step down conversion
12
Standard models available
12 Months
Warranty support
Product Overview
The DT/ST transformer series offers a wide power range, from 100VA to 10KVA, and safely and efficiently converts AC voltages between 110V and 220V. Featuring a toroidal core design, these transformers offer superior performance in a compact size, ensuring stable operation for both light household appliances and heavy industrial equipment.
- Step-up & Step-down function (110↔220V)
- Toroidal transformer for high efficiency & low noise
- Input Voltage Selector: 110-120VAC/220-240VAC
- Output: 2 PCS 110V USA Sockets and 2 PCS 220V Universal Sockets
- Fuse/MCB protection & Portable handle design
- OEM/ODM customization available
Technical Specifications
| Model | Package Size (cm) | Packaging Weight | Qty/Package |
|---|---|---|---|
| ST/DT-100VA | 50.5×23×32.5 | 11KG | 6 |
| ST/DT-200VA | 50.5×23×32.5 | 12KG | 6 |
| ST/DT-300VA | 50.5×23×32.5 | 13.5KG | 6 |
| ST/DT-500VA | 50.5×23×32.5 | 15.5KG | 6 |
| ST/DT-750VA | 50.5×23×32.5 | 16.5KG | 6 |
| ST/DT-1000VA | 50.5×30×21 | 11KG | 2 |
| ST/DT-1500VA | 50.5×30×21 | 12KG | 2 |
| ST/DT-2000VA | 50.5×30×21 | 14KG | 2 |
| ST/DT-3000VA | 50.5×33×21 | 16KG | 2 |
| ST/DT-5000VA | 39×29.5×28.5 | 13KG | 1 |
| ST/DT-7500VA | 40.5×31×31 | 17KG | 1 |
| ST/DT-10000VA | 40.5×31×31 | 17.5KG | 1 |
Selection note: For motor loads, inductive loads or long-hour operation, it is generally recommended to select a transformer with additional headroom above the device rated power.
Electrical Parameters
| Parameter | Value |
|---|---|
| Power | 100VA–10KVA |
| Input Voltage | 110–120V / 220–240V |
| Output Voltage | 110–120V / 220–240V |
| Frequency | 50/60Hz |
| Efficiency | ≥80% |
| Protection | Fuse / MCB |
| Operation Temp | 0°C–40°C |
| Phase | Single Phase |
| Connection | Plug / Terminal |
| Warranty | 12 Months |
ODM / OEM Customization
We provide OEM/ODM customization for voltage range, socket type, plug style, and housing design to meet the needs of different regions and industries. MOQ-based customization available.
1-year warranty | CE Certified | OEM/ODM Supported | RoHS Certified | ISO 9001 Certified
Frequently Asked Questions
Can it be used in both 110V and 220V countries?
Yes. You can switch input voltage between 110–120V and 220–240V using the selector.
Is it safe for sensitive electronics?
Absolutely. The toroidal design and stable output ensure safe operation.
What is the difference between Step Up and Step Down?
“Step Up” converts 110V → 220V; “Step Down” converts 220V → 110V.
Do you support OEM orders?
Yes. MOQ-based OEM/ODM accepted with custom voltages and sockets.
What's the warranty?
12 months from delivery date.
Get Your DT/ST Transformer Quote Today!
Tell us your voltage, capacity, and application, and our engineers will recommend the optimal solution within 24 hours.