The variable-frequency power supply is specially designed and manufactured for 60Hz import and export equipment. It can be used as the power supply for imported 60Hz electrical equipment and production lines, and it can also be used as the test power supply for export electrical product production lines. Its main features are low harmonic distortion, high stability, and clean, reliable sine-wave power output with stable frequency and voltage regulation.
Product Description
The variable-frequency power supply is specially designed and manufactured for 60Hz import and export equipment. It can be used as the power supply for imported 60Hz electrical equipment and production lines, and it can also be used as the test power supply for export electrical product production lines. Its main features are low harmonic distortion, high stability, and clean, reliable sine-wave power output with stable frequency and voltage regulation. It can also support 400Hz high-frequency avionics equipment. The SFC series variable-frequency power supply can solve almost all power supply problems, such as high mains voltage, low mains voltage, instantaneous voltage drop, damped oscillation, high-voltage pulse, voltage fluctuation, surge voltage, harmonic distortion, noise interference, and frequency fluctuation.
Product Features
It is multifunctional AC source test equipment that simulates different power types around the world and supports 400Hz frequency for defense detection, avionics, navigation, communication, and other equipment. It produces purified AC output power through powerful direct digital synthesis (DDS) sine-wave generation, with clean sine-wave output and low harmonic distortion. It has excellent stability, with output load voltage regulation within ±1% and output frequency within 0.01%, generated by a quartz oscillator for highly stable and accurate frequency. It responds quickly: for 100% load application or removal, output load stabilizes within ±1% in 2ms. Multiple protection functions include overvoltage, overcurrent, overtemperature, proprietary IGBT drive technology, and output short-circuit protection. It has strong overload capability, allowing 100% full-load long-duration use and instantaneous current up to three times rated current without voltage drop. The human-machine interface displays voltage, frequency, current, power, and PF digitally with accuracy up to class 0.5.
Product Parameters
| Parameter | Value |
|---|---|
| Model | SFC11-xx VA |
| Power Supply System | Single-Phase Input and Single-Phase Output |
| Capacity | 500VA / 1KVA / 3KVA / 5KVA / 10KVA / 15KVA |
| Circuit Method | IGBT/SPWM Pulse-Width Modulation Method |
| Input Phase | Single-Phase Two-Wire + Ground Wire |
| Input Voltage | 220V±15% |
| Input Frequency | 47-63 Hz |
| Output Phase | Single Phase |
| Output Voltage | Low Range: 0-150V continuously adjustable; High Range: 0-300V continuously adjustable (100KVA and above high-low voltage one range) |
| Load Voltage Regulation | Static: ≤1%; Dynamic: ≤2% |
| Response Time | ≤2mS |
| Rated Current by Capacity | @110V: 4.2A / 8.4A / 25A / 42A / 84A / 126A; @220V: 2.1A / 4.2A / 12.5A / 21A / 42A / 63A |
| Frequency | 47-63/50/60/2F (2x input frequency) / 4F / 400Hz or 40~500Hz (order-specific adjustable) |
| Frequency Stability | ≤±0.01% |
| Waveform Distortion | ≤2% |
| Overload Capability | 120% for 1 hour, 120-150% for 2 minutes, 200% instant |
| Measurement / Resolution | 4-digit frequency meter / 0.1HZ; 4-digit voltage meter / 0.1V; 4-digit current meter / 0.01A; 4-digit power meter / 0.1W / PF meter |
| Protection Functions | Input phase loss, output overvoltage, output overload, internal overheating, output short circuit, and automatic indication with buzzer |
| Insulation Resistance | 500Vdc 20MΩ or above |
| Withstand Insulation | 1800Vac/5mA/1 minute |
| Cooling Method | Forced fan cooling |
| Working Environment | Temperature: 0°C-45°C; Relative humidity: 0-90% non-condensing; Altitude: 1500 m |
We specialize in smart thermostats, PCBA manufacturing, energy storage products, inverter power supplies, variable-frequency power supplies and customized electronic control solutions.
Yes. We offer comprehensive OEM and ODM services, including PCB design, hardware and software development, private labeling, custom packaging and product customization.
Our products are widely used in HVAC systems, EV charging, renewable energy, industrial automation, smart buildings, consumer electronics and power management applications.
Our products comply with international quality and safety standards, including CE, RoHS, LVD and EMC certifications, depending on the product model.
Absolutely. Our engineering team provides professional product selection, technical consultation and customized recommendations based on your project requirements.