3 phase high power SBW 50kva industrial voltage stabilizer 380v

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  • 1 - 4 Sets
  • 5 - 9 Sets
  • >=10 Sets
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Quick Details
Place of Origin:
Jiangsu, China
Brand Name:
Model Number:
Three Phase
Current Type:
Input Voltage Range:
Output Voltage:
Response Time:
Working Frequency:
Phase loss, under/over voltage, overload, short circuit
Overload Capacity:
2 times of rated output current, last for 1 minute
Waveform Distortion:
Supply Ability
Supply Ability:
2500 Set/Sets per Month
Packaging & Delivery
Packaging Details
plywood case with pallet, 1 set per case for high power SBW 50kva industrial 3 phase voltage stabilizer 380v.
Shanghai/Ningbo/Guangzhou or other main ports in China

high power SBW 50kva industrial 3 phase voltage stabilizer 380v

Features & Benefits

Our voltage stabilizers have special advantages and very different from others.
(1) All new raw materials.
(2) Full (100%) capacity. 80% or less capacity is NOT recommended.
(3) State-of-the-art technology makes true energy saving.
(4) Simple installation, safe protection, reliable operation, low maintenance. 
(5) Clear, comprehensive documentation and labeling.
(6) Suitable for 3 phase imbalanced/balanced supply & imbalanced/balanced load.
(7) THREE YEARS warranty!

Technical Parameters

In order to give you the best price, please kindly specify your requirements as clearly as possible.

OEM and ODM is welcome, we have professional and experienced engineer team for you.


KVA Rating50KVA
Input Voltage Range380V±20% 
Output Voltage 380V±3%
Working Frequency50Hz/60Hz
Phase Regulation Mode

Regulation on each phases synchronous

Bypass SystemManual bypass
Response Time≤1s
Overload Capacity2 times of rated output current, last for 1 minute
Duty CycleContinuous
Winding Material

Adjusting transformer: copper

Compensation transformer: aluminum

Insulation ClassF
Ambient Temperature-15 to +45°C
Cooling TypeAA or FA
Relative Humidity0-95% (Non-condensing)
Insulation Resistance≥2MΩ
Withstand Voltage StrengthNo damage at 2.5KV for 1 minute
Wave DistortionNil
Acoustic Noise≤50dBA
Display PanelLED digital display for input voltage, output voltage and output current
ProtectionsInput Circuit Breaker, Over Voltage, Under Voltage, Short Circuit, Overload, etc
Enclosure ColorWhite, RAL7032, black, etc
IP RatingIP20 for indoor/IP54 for outdoor, etc
Special RequirementsPlease advise before quotation
Processing Equipment

Our voltage regulators are setting new standards for quality – in design, manufacturing and testing.



We have the core technologies and all main parts are manufactured by ourselves, for compensation transformer processing equipment, please click the SG Dry Type Transformers product details.

Finished AVR

Compact design, save your installation space.


Pre-shipping Test

Before leaving the LINGFRAN factory, every automatic voltage stabilizer/regulator must pass a series of rigorous tests, performed with advanced equipment, on a range of measurements.  

(1) Appearance – visual check.
(2) Input voltage regulation range, output voltage and output accuracy.
(3) Insulation resistance and withstand voltage strength .
(4) Protection Function: Over/under voltage, manual bypass, limit switch.

Below are part of our testing instrument.

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