Skip to main content

ZHENGXI

Home Voltage Regulator Manufacturer | OEM Supplier

ZHENGXI is a professional voltage stabilizer manufacturer in China, specializing in home automatic voltage stabilizers, transformer and power supply solutions.

We design and manufacture voltage stabilizers for air conditioners, refrigerators, TVs, computers, washing machines, and whole-house electrical systems, helping protect appliances from low voltage, overvoltage, power surges, and unstable power supply.

With strong OEM/ODM capabilities, strict quality control, and extensive manufacturing experience, we serve distributors, wholesalers, importers, contractors, and electrical brands worldwide. From residential voltage stabilizers to customized power regulation solutions, ZHENGXI delivers reliable products tailored to your market needs.

20+

Years Experience

OEM &ODM

Available

ISO, CE

Quality Certified

Factory Direct

Competitive Price

Professional

Technical Support

Type:
Servo/Static/Relay

Input Voltage:
Customizable

Types of ZHENGXI's AC Voltage Stabilizers

Browse our voltage stabilizers by application, phase, or technology.

Retail customers are advised to read our voltage stabilizer Purchase Guide before making a purchase.

The relay type voltage stabilizer uses relay switching technology for voltage regulation, offering a cost-effective solution with a simple structure and fast response time. It is ideal for most residential applications. 

  • Accuracy: ±8% / ±10%
  • Input Voltage Range: 45-280V, 80-280V, 100-280V, 140-280V, or customized
  • Applications: Household appliances, whole-house voltage stabilization

TKB Series AC Automatic Wall Stabilizer For Home 1kva-10kva Input voltage 80-260V

DHB Relay Wall LED Automatic Voltage Regulator For Home

DEB 0.5Kva-10Kva Home Wall Mount Voltage Stabilizer With Current Display

DFB 5Kva-30Kva Home Wall Mount Voltage Stabilizer With Current Display

DMB 0.5Kva-15Kva Home Wall Mount Voltage Stabilizer

Portable Fully Automatic Home Voltage Stabilizer with USB Charging Port

DVT Mainline Voltage Stabilizer For Home 0.5Kva-5Kva

DCT Mainline Voltage Stabilizer For Home 500va 1000va 1500va 2000va 3000va 5000va

  • Servo motor control
  • Pure copper regulator coil, stable performance, long service life. Fast response speed, accuracy ±3%.
  • Voltage regulator range: single-phase 140-260V AC or customized; 3 phase 304-456V AC or customized.

SKW Series AC Automatic Wall Stabilizer For Home 1kva-30kva Input voltage 80-260V

SVC 1KVA-12KVA Super-Thin Type High Accuracy Full-Automatic House AC Voltage Stabilizer

Outdoor Wall-Mounted Rainproof Voltage Stabilizer

10Kva-60Kva Single Phase Servo Type AVR Voltage Stabilizer for Computer

10Kva-60Kva Single Phase AVR With Servo Motor

  • Also called contactless voltage stabilizer, thyristor control
  • Response speed is very fast 0.1s voltage stabilization, precision ±1-5% adjustable.
  • Capacity: 500VA-4000KVA
  • Voltage regulator range: single-phase 175-265V AC or customized, three-phase 320V-440V, 260V-430V AC or customized.

GTD 350VA-1500VA single-phase IGBT inverter voltage stabilizer

Single Phase PV SCR Bidirectiona Automatic Voltage Stabilizer

Portable Voltage Stabilizer for whole house

Portable voltage stabilizers are compact and lightweight, making them easy to carry and move, ideal for situations requiring frequent changes of location. They are easy to install and operate, requiring no professional knowledge, and provide efficient and stable voltage output to protect electronic devices from voltage fluctuations. Portable voltage stabilizers are suitable for various temporary and mobile power needs, such as outdoor activities, fieldwork, and travel, ensuring that devices operate safely and reliably in different environments.

Wall-mounted household voltage stabilizer

Wall stabilizer has the advantages of space-saving, beautiful and neat, suitable for mounting on the wall, does not take up the floor space, and enhances the aesthetics of the environment. It is easy to install, dissipates heat well and runs with low noise, which is suitable for a variety of places such as homes, offices and factories. At the same time, the wall-mounted voltage regulator provides efficient and stable voltage output with multiple protection functions to ensure safe and reliable operation of the equipment, and is cost-effective.

Why Do Homes Need a Voltage Regulator?

Residential power systems often experience voltage fluctuations caused by unstable utility grids, overloaded electrical networks, lightning strikes, or sudden changes in power demand. A home voltage regulator automatically stabilizes the incoming voltage to protect household appliances and ensure reliable daily operation.

Category Details
Common Causes Unstable utility grids, overloaded electrical networks, lightning strikes, and sudden power demand changes.
Potential Risks Voltage fluctuations may damage sensitive electronics and shorten the service life of household appliances.
How It Works Continuously monitors incoming voltage and automatically adjusts the output to provide a stable power supply.
Key Benefits Protect household appliances, prevent electrical damage, improve equipment performance, extend appliance lifespan, reduce maintenance costs, and ensure stable operation.
Problems Prevented Air conditioners failing to start, refrigerator compressor damage, TV/display failures, computer shutdowns and data loss, washing machine motor damage, and frequent equipment malfunctions.
Recommended Use Ideal for homes located in areas with unstable electricity supply where long-term voltage protection is required.
Tip: A household voltage stabilizer provides a simple and cost-effective solution for protecting valuable home appliances from voltage instability over the long term.

Types of Home Voltage Regulators

ZHENGXI manufactures several types of voltage regulators for home and residential applications.

Relay Voltage Stabilizers

Relay voltage stabilizers are cost-effective solutions designed for small household appliances and light residential loads.
· Fast voltage correction
· Compact design
· Easy installation
· Suitable for TVs, refrigerators, and small appliances

Servo Voltage Stabilizers

Servo voltage stabilizers use a servo motor and variable transformer to provide precise voltage correction.
· High voltage accuracy
· Wide input voltage range
· Smooth voltage regulation
· Longer service life
· Reliable performance

IGBT Inverter Voltage Stabilizer

A whole house voltage stabilizer protects all household appliances through a single installation point.
· High precision stabilization ±1%
· High efficiency and energy savings
· Low maintenance costs
· Fanless design; low operating noise

Technical Specifications

Our home voltage regulators are available in multiple capacities and voltage ranges to meet the requirements of different residential power systems. Custom specifications can also be provided for specific applications.

Capacity 350VA – 60kVA
Input Voltage 80V–260V / 100V–260V / 140V–260V or Customizable
Output Voltage 110V / 120V / 220V / 230V or Customizable
Voltage Accuracy ±1%, ±3%, ±10%
Frequency 50Hz / 60Hz
Phase Single Phase
Efficiency ≥95%
Protection Functions Over Voltage, Under Voltage, Overload, Short Circuit
Cooling Method Natural Air Cooling
Display LED / LCD Optional
Custom Configuration Available: Capacity, voltage range, output voltage, accuracy, display type, and protection functions can all be customized according to project requirements.

Applications of Home Voltage Stabilizers

Benefits

  • Protect household appliances from voltage fluctuations
  • Extend equipment lifespan
  • Improve operational reliability
  • Reduce repair and replacement costs
  • Enhance energy efficiency
  • Prevent unexpected shutdowns
  • Improve appliance performance
  • Provide long-term power protection

How It Works

①
Detect
Input Voltage
→
②
Analyze
Voltage Condition
→
③
Adjust
Output Voltage
→
④
Deliver
Stable Voltage
Continuous automatic regulation protects connected equipment from over-voltage and under-voltage conditions.

How to Select the Right Home Voltage Stabilizer

✓ Calculate total load capacity.
✓ Add 20–30% extra capacity for future expansion.
✓ Consider startup current of compressors, motors and pumps.
✓ Choose the proper input voltage range (140V–260V, 100V–260V or 80V–260V).
✓ Select suitable output accuracy (±1%, ±2% or ±3%) for sensitive equipment.
Example Load Calculation
Appliance Power
Air Conditioner 2000W
Refrigerator 400W
Television 150W
Computer 300W
Total Load 2850W
Recommended Capacity: Above 5kVA

Recommended Capacity

Home Type Recommended Capacity
Small Apartment 3kVA
Medium Home 5kVA
Large House 10kVA
Villa 15kVA – 20kVA
Whole House Protection 20kVA – 30kVA
Recommendation: Adequate reserve capacity ensures stable startup and long-term reliability.

FAQ

Related Blogs

The stabilizer should generally have 50–60% higher capacity than the total connected load.

Yes. A whole house voltage stabilizer can protect all household appliances through a centralized installation.

Although inverter air conditioners tolerate voltage variations better than conventional units, a stabilizer is still recommended in areas with unstable power supply.

Relay stabilizers are more economical, while servo stabilizers provide higher voltage accuracy and better performance for sensitive equipment.

A voltage stabilizer primarily protects equipment and improves operational efficiency. It is not designed to directly reduce electricity consumption.

Yes. Refrigerators are sensitive to low voltage and power fluctuations that may damage compressors.

Low voltage may cause overheating, poor appliance performance, motor damage, and equipment failure.

Professional installation is recommended to ensure safety and proper system performance.

Get help from voltage stabilizer experts

Compare prices and services, we have a team of technical professionals who will be happy to help you!

Welcome Enquiry

Are you looking for reliable suppliers and quality products? Fill out the form and send it to us — we’ll get back to you within 24 hours!We’re not around but we still want to hear from you! Leave us a note

Welcome Enquiry