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ZDBW,ZSBW Series Wide Range Voltage Stabilizer

Wide Range Voltage Stabilizer 88-290V

In the developing countries, especially the remote areas, the mains power is extremely unstable. And the input voltage range (especially the minimum voltage) is very wide. For example, the low input voltage can be down to 88V (the rated line to neutral voltage is 220V) that results in the electrical equipment cannot start and operate.The common voltage stabilizer cannot handle the extreme low and unbalance voltage. Even if those can reluctantly work, the output power is de-rated a lot due to low voltage and high current

situation. A special voltage stabilizer with a step-up transformer can some how solve the problem, but it has the disadvantages of high cost, low efficiency and more space


Our special designed ZDBW,ZSBW series extreme wide range voltage stabilizer adopting patent voltage regulator used to cope with input voltage down to 88V, and output voltage regulated to rated 220V without de-rated input power a lot.Its high cost effective, reliability, high performance and long lifetime are all backed by a world class organization with decades of mains power experience. It is applied for any loads like telecom, medical, industrial, commercial and household applications.

Features •Extremely wide voltage regulation

range: 88-264Vac (L-N), or can

be customized

•10-100KVA single and three phase,

rated voltage can be customized

•Individual regulation of each phase

for unbalance load

•Unique small dimension

•Reliable and quiet servo motors

•Wheels mounted for easy installation

•Overvoltage and undervoltage cut off


•Sine wave output(regardless of input


•High Mean Time Between Failure(MTBF)

•By-pass switch available for easy


•Auto power-on function on request

Application Special designed extreme wide range voltage stabilizer adopting voltage regulator used to cope with input voltage down to 88V,and output voltage regulated to rated 220V,without de-rated a lot input power.

It is applied for any loads like telecom,medical,industrial, commercial and household applications.

Input Voltage 88-290V(see graph), or on request

System Voltage Nominal system voltage 380/220 V

Supply Frequency 50/60Hz

Voltage Regulation Mode Independent phase regulation

Insulation Class H class

Regulation Accuracy ±2.5% (adjustable, 1-5 %)

Cooling Type Natural Air(AN)/Forced Air(AF)

Duty Type Continuous

Undervoltage Protect Cut off 242 V (adjustable), delay 4 -7 s

Overvoltage Protect Cut off 176 V (adjustable), delay 4 -7 s

Efficiency >98%

Protection Class Ingress protection IP20 (outdoor version on request)

Electrical Safety CE equivalent

Relative Humidity <90%

Operational Temperature -20 C to +45 C


  • Wenzhou, Zhejiang, China
  • MA Safety Signal