What Is a Step Down Transformer with Voltage Stabilizer?
This device is an all-in-one solution that combines a transformer (for voltage conversion) and a servo voltage stabilizer (for voltage regulation). Designed for seamless power adaptation, it converts high input voltage (e.g., 220V–250V) to a safe, usable level (typically 110V), while also correcting for voltage fluctuations, spikes, and dips in real time.
Unlike standalone transformers, this integrated system ensures your equipment is not only powered correctly—but also protected.
| Model | Single phase voltagestabilizer and transformer integrated machine | WBT-D-3KVA | WBT-D-5KVA | WBT-D-10KVA | WBT-D-15KVA | |
| WBT-D-20KVA | WBT-D-30KVA | WBT-D-40KVA | WBT-D-50KVA | |||
| Three phase voltagestabilizer and transformer integrated machine | WBT-S-3KVA | WBT-S-5KVA | WBT-S-10KVA | WBT-S-15KVA | ||
| WBT-S-20KVA | WBT-S-30KVA | WBT-S-40KVA | WBT-S-50KVA | |||
| Phase | Single phase | |||||
| Input voltage | AC 150-250V or customized | |||||
| Output voltage | AC 110V or customized | |||||
| Frequency | 50Hz/60Hz | |||||
| Precision | ±3% | |||||
| Power factor | ≤95% | |||||
| Control type | Servo motor | |||||
| Digital display | Show input and output voltage,Load Ratio and Fault Indicator | |||||
| Protection | Overvoltage, Overload, Short circuit, Over temperature | |||||
| Ambient temperature | -10°C~+ 40°C | |||||
| Relative Humidity | <95% | |||||
| Waveform Distortion | No additional wave form distortion | |||||
| Insulating Resistance | Normally more than 2MΩ | |||||
| Insulating Class | Class B | |||||
| Protection | Overvoltage | Output Voltage ≥ 245V ± 4V | ||||
| Low voltage | Output Voltage ≤ 180V ± 4V | |||||
| Over temperature | 95℃±10℃ | |||||
| Delay protection | Customizable | |||||
| Undervoltage | Disabled by default, customizable if needed | |||||
| The device integrates voltage conversion and stabilization functions. | ||||||
| The size and weight vary depending on the voltage range, and are subject to the customized actual product. | ||||||
Note: Dimensions and weight vary by capacity and input range. Customized designs are available.
Why Choose SUNWAY’s Integrated Stabilizer and Transformer?
SUNWAY’s combination system is engineered with industrial-grade reliability and user convenience in mind.
Key Benefits:
- Two-in-One Functionality: No need to buy a separate stabilizer and transformer.
- Servo Motor Control: Offers ±3% precision voltage regulation for sensitive devices.
- Digital Display: Real-time monitoring of input/output voltage, load ratio, and system status.
- High Compatibility: Handles 150V–250V input; customized options available.
- Built-in Protections: Includes overvoltage, overload, overheating, short circuit, and delay protection.
- Space-Saving Vertical Design: Ideal for home, office, and light commercial use.
How Is It Different from Separate Units?
| Feature | SUNWAY Integrated AVR+Transformer | Separate Stabilizer + Transformer |
|---|---|---|
| Design | Single compact unit | Two separate units |
| Performance | Unified control and protection | Requires manual coordination |
| Efficiency | Optimized energy handling | Slightly lower efficiency |
| Space Saving | ✅ Yes | ❌ No |
Choosing the Right Model
When selecting a step down transformer with stabilizer, keep the following in mind:
- Total load in VA or watts
- Number of phases required (Single-phase for home; three-phase for industrial)
- Voltage fluctuations in your area
- Appliance type and sensitivity
Recommended Usage:
- 3–10KVA: Ideal for home appliances, imported electronics, audio systems
- 15–30KVA: Suitable for HVAC units, small labs, server rooms
- 40–50KVA: Designed for workshops, commercial kitchens, industrial machines
Still unsure? Our engineering team is ready to help with selection and customization.
FAQ
1. Can I use this device with American appliances in Europe or Asia?
Yes. This unit converts 220–250V down to 110V while stabilizing the output, making it perfect for US appliances used abroad.
2. Is this suitable for continuous use?
Absolutely. SUNWAY’s units are designed for long-term, stable operation with built-in temperature and overload protections.
3. What happens if the voltage goes too high or low?
The device will automatically trigger protection mechanisms, such as cut-off or delay restart, to safeguard connected equipment.
