Select category
  • Select category
  • AC Voltage Stabilizer
    • Home Voltage Stabilizer
    • IGBT Static voltage stabilizer
    • Relay Type AVR For Home
    • Servo Voltage Stabilizer (AVR)
    • Three Phase Stabilizer
  • Electrical Substation
  • Electrical Switchgear
    • Metal-Clad Switchgear
  • Low Voltage Transformer
    • Control Transformers
    • Isolation Transformer
    • Single Phase Transformers
    • Three Phase Transformer
    • Toroidal Transformers
  • Power Transformer
    • Dry Transformer
    • Oil Immersed Distribution Transformer
  • Vacuum Circuit Breaker
  • Variable Transformer
  • Home
  • Product
    Transformer
    • Power Transformer
      • Dry Transformer
      • Oil ImmersedTransformer
    Vacuum-Circuit-Breaker
    • Vacuum Circuit Breaker
      • Indoor type
      • Outdoor type
    Switchgear
    • Electrical Switchgear
      • Metal-clad Switchgear
      • Ring Main Unit Switchgear
      • Gas insulated switchgear
    Low Voltage Transformer
    • Low Voltage Transformers
      • Control Transformers
      • Isolation Transformer
      • Single Phase Transformers
      • Three Phase Transformer
    voltage stabilizer
    • AC Voltage Stabilizer
      • Relay Type AVR
      • Servo Type AVR
      • IGBT Stabilizer
      • Three Phase Stabilizer For Industrial
      • Home Voltage Stabilizer
    3 Phase Power Transformer Manufacturers
    All Products
  • About
    • About Factory
    • Solutions
      • Industrial
      • Voltage Regulator For Home Appliances
  • Certificate
  • Blog
    • AVR Knowledge
    • Transformer Knowledge
    • Switchgear Blog
    • Inverters knowledge
  • FAQ
  • Contact
Get quote

Get Free Consultation!

We are ready to answer right now! 

I consent to the processing of personal data and agree with the user agreement and privacy policy

Menu
SJW 3 Phase 40KVA Servo Voltage Stabilizer for Commercial Data Centers
3-Phase Servo Commercial Voltage Stabilizer
3-Phase servo AVR voltage stabilizer
High Power Voltage Stabilizer 3
High Power Voltage Stabilizer 4
SJW High Accuracy Three Phase Full-Automatic Static Voltage Stabilizer
three phase automatic voltage stabilizer
Click to enlarge
SJW 3 Phase 40KVA Servo Voltage Stabilizer for Commercial Data Centers
3-Phase Servo Commercial Voltage Stabilizer
3-Phase servo AVR voltage stabilizer
High Power Voltage Stabilizer 3
High Power Voltage Stabilizer 4
SJW High Accuracy Three Phase Full-Automatic Static Voltage Stabilizer
three phase automatic voltage stabilizer
Home AC Voltage Stabilizer Servo Voltage Stabilizer (AVR) SJW 3 Phase 40KVA Servo Voltage Stabilizer for Commercial Data Centers
PC-TBR5KVA Single-Phase Voltage Stabilizer for Home Electronics
PC-TBR5KVA Single-Phase Voltage Stabilizer for Home Electronics
Back to products
20KVA Single-Phase Full Automatic AC Voltage Stabilizer AVR For Refrigerator
20KVA Single-Phase Full Automatic AC Voltage Stabilizer AVR For Refrigerator

SJW 3 Phase 40KVA Servo Voltage Stabilizer for Commercial Data Centers

The SJW 3 Phase 40KVA Servo Voltage Stabilizer is designed to deliver clean, stable, and reliable power for commercial facilities and modern data centers. With its high-accuracy ±3% voltage correction, servo motor control, and real-time digital monitoring, it ensures uninterrupted performance for sensitive IT loads, servers, networking equipment, and precision industrial electronics.

Built for 24/7 continuous operation, this stabilizer helps reduce equipment failure, prevent downtime, and extend the lifespan of mission-critical systems. For organizations that rely on stable power—data centers, telecom rooms, financial institutions, security monitoring hubs, hospitals, and manufacturing lines—SJW stabilizers provide a long-term, high-efficiency power protection solution.

Category: AC Voltage Stabilizer, Servo Voltage Stabilizer (AVR), Three Phase Stabilizer
Share:
  • Description
  • Shipping & Delivery
Description

Key Features & Advantages

✔ Engineered for Data Centers & Commercial Facilities

The 40KVA model supports high-density loads including:

  • Server racks & network switches

  • Storage arrays & UPS systems

  • Telecom equipment

  • Industrial automation systems

  • Precision laboratory electronics

✔ Wide Input Voltage Range Available

Choose from standard ranges AC 260–450V or 304–456V, or request a fully customized configuration to match local grid conditions.

✔ High Accuracy ±3% Output Regulation

Ensures stable 380V three-phase output, preventing overloads, overheating, and equipment malfunctions caused by power fluctuation.

✔ Advanced Servo Motor Control

Provides smooth, precise voltage correction with:

  • Fast response speed

  • Low distortion

  • High durability

  • Stable performance under heavy load

✔ Real-Time Digital Display

Monitor all key parameters directly on the panel:

  • Input voltage

  • Output voltage

  • Load ratio

  • Fault indicators

✔ Multiple Built-in Protections

Essential protection functions for critical IT equipment:

  • Over-voltage

  • Low-voltage

  • Overload

  • Short circuit

  • Over-temperature

  • Custom delay protection

  • Optional undervoltage protection

✔ High Efficiency >95%

Reduces energy consumption and heat generation, ideal for long-term and large-scale commercial operation.

Technical Parameters

Model SJW3-1.5KVA~120KVA
Phase Three phase
Input voltage AC 260-450V, 304-456V or customized
Output voltage AC 380V or customized
Frequency 50Hz/60Hz
Precision ±3%
Efficiency >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 ≥ 425V ± 4V
Low voltage Output Voltage ≤ 310V ± 4V
Over temperature 95℃±10℃
Delay protection Customizable
Undervoltage Disabled by default, customizable if needed
Power 10KVA 15KVA 20KVA 30KVA 40KVA
Size(mm)   L*W*H 490*320*520 490*320*520 490*320*520 410*460*880 410*460*880
N.W(kg) 35.5 41 46.5 85.5 95.5
Power 50KVA 60KVA 80KVA 100KVA 120KVA
Size(mm)   L*W*H 450*550*1195 450*550*1195 520*620*1335 520*620*1335 520*620*1335
N.W(kg) 121.5 136 158.5 186 198
The size and weight vary depending on the voltage range, and are subject to the customized actual product.

FAQ

1. Is the 40KVA stabilizer suitable for modern data centers?
Yes. It is designed specifically for continuous, high-load environments such as server rooms, telecom stations, and digital infrastructure facilities.

2. How does servo control improve voltage stability?
Servo motors correct voltage smoothly and precisely, ensuring high accuracy and protection for sensitive electronics without generating distortion.

3. Can I customize the input and output voltage?
Absolutely. We can tailor voltage ranges to meet your local grid and equipment requirements.

4. Does the stabilizer work with UPS systems?
Yes. It can be installed before UPS units to ensure clean input voltage and reduce UPS battery stress.

5. What happens if the voltage becomes too low or too high?
The stabilizer automatically triggers protective actions such as bypassing, shutdown, or delay start to ensure safety.

6. Is this equipment suitable for 24/7 operation?
Yes. It is built for continuous use and ideal for mission-critical facilities requiring constant power stability.

Looking for a reliable 3-phase servo stabilizer for your data center or commercial facility?
We offer OEM service, competitive factory pricing, and fast delivery.

👉 Contact us today for a quotation or technical support.
Our engineering team can help you choose the right model for your load requirements.

Shipping & Delivery

Related products

Single Phase IGBT Pure Sine Wave Inverter Voltage Regulator Stabilizer
static regulator

Single Phase IGBT Pure Sine Wave Inverter Voltage Regulator Stabilizer

AC Voltage Stabilizer, IGBT Static voltage stabilizer
A stable voltage is essential to ensure the proper functioning of various electrical and electronic devices. This Single Phase IGBT Pure Sine Wave Inverter Voltage Regulator Stabilizer is specifically engineered to provide higher precision voltage regulation, fast response, and low harmonic distortion, especially in situations where conventional servo or relay voltage stabilizers fail to perform adequately. With the adoption of IGBT-based inverter regulation technology, this single-phase stabilizer ensures a clean and stable AC output even during harsh conditions associated with intense grid fluctuations, making it an ideal stabilizer for sensitive loads.
Quick view
SBW 60kva-300kva Outdoor 3 Phase Servo Automatic Voltage Stabilizer Rainproof Type

SBW Industrial Outdoor 100KVA 3 Phase Servo Automatic Voltage Stabilizer for Mechanical Equipment

AC Voltage Stabilizer, Servo Voltage Stabilizer (AVR), Three Phase Stabilizer
In modern industrial power systems, voltage stability is a fundamental requirement rather than an optional feature. Unstable three-phase voltage can directly lead to equipment shutdowns, control system faults, motor overheating, and long-term damage to mechanical machinery. The SBW Industrial Outdoor 100KVA 3 Phase Servo Automatic Voltage Stabilizer, manufactured by ZHENGXI, is specifically designed to provide precise and reliable voltage regulation for heavy-duty mechanical equipment operating in unstable or fluctuating grid environments. With servo motor control technology and a rugged outdoor structure, this three phase stabilizer ensures continuous, safe, and efficient industrial operation.
Quick view
ZBW 10Kva-4000Kva 3 Phase IGBT Static Automatic Voltage Stabilizer For High-Precision Machines
ZBW three phase IGBT static automatic voltage stabilizer for industrial machines

ZBW 10Kva-4000Kva 3 Phase IGBT Static Automatic Voltage Stabilizer For High-Precision Machines

AC Voltage Stabilizer, IGBT Static voltage stabilizer, Three Phase Stabilizer
ZBW 10Kva-4000Kva 3 phase igbt static automatic voltage stabilizer for High-Precision Machines Voltage stability in modern industrial setups is no longer a luxury but an imperative requirement for precision, efficiency, and longevity. The ZBW Series 3 Phase IGBT Static Automatic Voltage Stabilizer, with capacities ranging from 10kVA to 4000kVA, manufactured by ZHENGXI, is specifically designed for precise, accurate, and distortion-free voltage regulation for high-precision machines when dealing with unstable power conditions. The ZBW Stabilizer, which uses cutting-edge technology in IGBT Static Control, will provide a stable output voltage even when there are significant fluctuations in the input power, making this a very reliable and efficient device especially for industries with minimal shutdown times.
Quick view
SBW Three-Phase High power 150KVA Servo Voltage Stabilizer for Factory Power Control
three phase stabilizer

SBW Three-Phase High Power 150Kva Servo Automatic Voltage Stabilizer For Factory Power Control

AC Voltage Stabilizer, Servo Voltage Stabilizer (AVR), Three Phase Stabilizer
In industrial environments where voltage fluctuation can damage equipment and interrupt production, a reliable Three-Phase Voltage Stabilizer is essential. The SBW Three-Phase High Power Servo Voltage Stabilizer is designed to provide precise, stable, and continuous voltage regulation for factories, workshops, and heavy-duty industrial systems. With capacities ranging from 30KVA to 800KVA, including the widely used 150KVA model, this three phase servo voltage stabilizer delivers fast response, high efficiency, and strong load capability—making it a trusted Automatic Voltage Stabilizer solution for factory power control.
Quick view
Digital Display Whole House Relay AVR for Real-Time Voltage Monitoring

Digital Display Whole House Relay AVR for Real-Time Voltage Monitoring

AC Voltage Stabilizer, Home Voltage Stabilizer, Relay Type AVR For Home
Looking for a simple and reliable home voltage stabilizer? This Digital Display Relay AVR is designed for whole-house protection, offering real-time monitoring of input and output voltage through a clear digital screen. It automatically regulates voltage fluctuations and protects home appliances from damage caused by unstable electricity. This display stabilizer is ideal for homes, apartments, small offices, villas and areas with poor grid quality.
Quick view
High-Precision 10KVA Servo Voltage Stabilizer for Sensitive Devices

High-Precision 10KVA Servo Voltage Stabilizer for Sensitive Devices

AC Voltage Stabilizer, Home Voltage Stabilizer, Servo Voltage Stabilizer (AVR)
The High-Precision 10KVA Servo Voltage Stabilizer is specially designed for users who need accurate and stable power for sensitive and high-value electronic equipment. It uses a servo motor control system to continuously correct voltage in real time, ensuring your devices always receive clean and safe power. This model is ideal for home, medical, office, laboratory, telecom, and industrial applications where voltage stability directly affects equipment performance and lifetime.
Quick view
walton stabilizer price
walton refrigerator stabilizer price in bangladesh

Customized Single Phase Wall Mounted 0.5kVA-10kVA Automatic Voltage Stabilizer

AC Voltage Stabilizer, Home Voltage Stabilizer, Relay Type AVR For Home

The Customized Single Phase Wall Mounted Automatic Voltage Stabilizer is designed to provide reliable voltage regulation and protection for household and commercial electrical appliances. With a power range from 3.5kVA to 10kVA, this wall-mounted stabilizer ensures steady, safe, and efficient power delivery, even in areas with unstable or fluctuating mains voltage.

Built with advanced relay or servo motor control technology, it maintains a constant 220V output by automatically correcting under-voltage or over-voltage conditions. Compact, quiet, and efficient, it’s ideal for homes, offices, and small businesses seeking dependable voltage protection in a sleek wall-mounted design.

Quick view
People Avr Series 0.5Kva-10Kva Single Phase Automatic Voltage Stabilizer For Home

People Avr Series 0.5Kva-10Kva Single Phase Automatic Voltage Stabilizer For Home

AC Voltage Stabilizer, Home Voltage Stabilizer, Relay Type AVR For Home
The People AVR Series Single Phase Automatic Voltage Stabilizer is a smart, micro-computer-controlled device that keeps your home or small office power safe and stable. Using advanced 8-bit CPU technology, it quickly detects voltage changes and fixes them within milliseconds, making sure your appliances always get a steady 220V output. No matter if the input voltage is too high or too low, it automatically adjusts to protect your devices from overvoltage, undervoltage, and overload problems. With its compact design, easy-to-read LED display, and smart delay function, the People AVR Series offers reliable performance and simple operation — perfect for everyday home use.
Quick view
    PINE
    • Email: service@zhengxi1983.com
    • Tel/ WhatsApp: +86-18969737531
    • Address: 555 Station Road, Liu Shi Town, Yueqing City, Wenzhou City, Zhejiang Province, China

    Quick Links

    • Privacy Policy
    • About Factory
    • About Us

    Copyright © 2026 | PINE Electric Co., Ltd.
    Unauthorized reproduction or use of any content on this website is prohibited.

    • Menu
    • Categories
    • Home
    • About
    • Products
      • Power Transformer
        • Dry Transformer
        • Oil Immersed Distribution Transformer
      • Vacuum Circuit Breaker
      • Power Fittings
    • Blog
    • Solution
    • Email: sale@tronkiele.com
    • WhatApp: 86+15869671247
    • Home
    • About
    • Products
      • Power Transformer
        • Dry Transformer
        • Oil Immersed Distribution Transformer
      • Vacuum Circuit Breaker
      • Power Fittings
    • Blog
    • Solution
    • Email: sale@tronkiele.com
    • WhatApp: 86+15869671247
    We use cookies to improve your experience on our website. By browsing this website, you consent to our use of cookies.
    Accept
    Shop
    My account
    WhatApp: 86+15869671247
    Email: sale@tronkiele.com