This 100 kVA contactless automatic voltage regulator uses three-phase thyristor control technology to provide stable and accurate voltage output, protecting your power equipment from voltage fluctuations. Its unique design enables it to provide efficient power stability in various industrial applications, especially suitable for voltage protection of high-power loads and important equipment.
Input Voltage range | Three phase 304V-456V , for wider range can be customized |
Frequency | 50Hz/60Hz |
Related voltage | Line voltage 380V |
Voltage regulation accuracy | ±(1-7)% selectable (± 2.5% high precision) |
Response time | <10ms |
Stable schedule | ≤ 100ms |
Waveform distortion | Not generate additional waveform distortion(static) |
Effectiveness | 50KVA and below ≥97%, Above 50KVA ≥99% |
Three-phase unbalance | Three-phase point voltage automatic balance |
Delayed output | Regulate first, then output(protect the device from shock) |
Overpressure | Output phase power is higher than 10%(245) |
Under voltage | Output phase power is less than 10%(195) |
Application areas
Industrial equipment: such as CNC machine tools and automated production lines.
Power systems: places such as power companies and power plants that require precise voltage regulation.
Commercial equipment: high-power equipment such as air conditioners and elevators.
Medical equipment: prevent voltage fluctuations from affecting medical facilities.
Selection Recommendations
Power Matching: Ensure that the power of the voltage regulator matches the load.
Grid Stability: Applicable to areas with large voltage fluctuations.
Protection Function: Ensure that there are safety protections such as overvoltage and undervoltage.












Model | Rated capacity | Rated current | Net dimension |
ZBW-S-10KVA | 10KVA | 15A | 390*650*860(with four wheels) |
ZBW-S-20KVA | 20KVA | 30A | 390*650*860(with four wheels) |
ZBW-S-30KVA | 30KVA | 46A | 390*650*860(with four wheels) |
ZBW-S-40KVA | 40KVA | 61A | 390*650*860(with four wheels) |
ZBW-S-50KVA | 50KVA | 76A | 390*650*860(with four wheels) |
ZBW-S-60KVA | 60KVA | 91A | 390*650*860(with four wheels) |
ZBW-S-80KVA | 80KVA | 121A | 460*650*1200 |
ZBW-S-100KVA | 100KVA | 152A | 460*650*1200 |
ZBW-S-120KVA | 120KVA | 182A | 460*650*1200 |
ZBW-S-150KVA | 150KVA | 228A | 760*660*1660 |
ZBW-S-200KVA | 200KVA | 300A | 760*660*1660 |
ZBW-S-225KVA | 225KVA | 342A | 760*660*1660 |
ZBW-S-250KVA | 250KVA | 380A | 1100*800*2000 |
ZBW-S-300KVA | 300KVA | 450A | 1100*800*2000 |
ZBW-S-400KVA | 400KVA | 608A | 1100*800*2000 |
ZBW-S-500KVA | 500KVA | 760A | 1100*800*2000 |
ZBW-S-600KVA | 600KVA | 912A | 1100*800*2000 |













East, Eastern Asia, Western Europe and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefits from our cooperation.