Voltage Protector

Home / Products / Voltage Protector

Voltage Protector

A voltage protector is an intelligent safety device designed to safeguard electrical equipment and household appliances from damage caused by voltage fluctuations, overvoltage, undervoltage, or transient surges. With the increasing number of modern household and industrial electrical devices, the instability of the power grid may lead to malfunctions or reduced lifespan of appliances due to excessively high or low voltage. By continuously monitoring the power supply voltage, the protector automatically cuts off the power or activates a protection mode when detecting voltages outside the safe range, effectively preventing appliance damage.
application
Voltage protectors are widely used in various electrical applications. In households, they are suitable for sensitive appliances such as TVs, refrigerators, air conditioners, computers, and audio systems, ensuring the safe operation of daily electrical devices during voltage fluctuations. In commercial and industrial settings, they are commonly employed in server rooms, laboratory instruments, medical equipment, industrial automation systems, and communication base stations, providing a stable voltage environment for precision equipment to prevent data loss, device damage, or production interruptions caused by power grid anomalies.
production
We possess modern production lines and a rigorous quality management system, with all products adhering to international standards from component selection and circuit design to final assembly. Every voltage protector undergoes multiple testing procedures before leaving the factory, including voltage simulation tests, load aging tests, and surge impact tests, ensuring stable and reliable performance under various complex power grid conditions. Additionally, we support customized development, allowing adjustments to voltage protection ranges, delay times, housing materials, and socket specifications to meet localized requirements across different markets.
service
We offer comprehensive pre-sales, in-sales, and after-sales services. During the pre-sales phase, our professional technical team provides customers with product selection recommendations and solution design. In the in-sales phase, we ensure rapid order fulfillment along with clear installation instructions and operation guidelines. For the after-sales phase, we commit to promptly addressing customer feedback, delivering technical support, and offering product warranty services to ensure a worry-free user experience. Additionally, for OEM/ODM clients, we also provide one-stop services such as brand customization, packaging design, and certification assistance.
advantage
Our voltage protector boasts multiple core advantages: equipped with microprocessor control for fast response and high protection accuracy; features multi-protection functions including overvoltage, undervoltage, surge, and overload, ensuring comprehensive electrical safety; includes a built-in delayed restart function to prevent secondary damage from voltage recovery surges; the housing is made of flame-retardant material, with plug designs compliant with various international standards such as U.S. and European norms, balancing safety and convenience. Additionally, the product covers a range of specifications from household to industrial-grade, supporting customized production to meet diverse user needs.
With stable product performance, professional production capabilities, and a comprehensive service system, our voltage protector has become a reliable choice for residential users, contractors, and brand manufacturers.

About Us
Ningbo Haowei Electric Technology Co., Ltd.
The company focuses on R&D, design, mass production and global sales of over & under voltage protection smart sockets, independently engineered by our veteran in-house R&D team. We support customized OEM & ODM orders to satisfy diverse market demands.

Equipped with precision production techniques and full-process quality inspection systems, our products stand out in appearance design, functional stability and electrical safety, earning favorable reviews from worldwide importers.

We continuously upgrade our internal management system and follow standardized operational procedures. Our facility is certified to CE and ISO9001 standards. We adhere to strict quality specifications to supply premium electrical protection products and customized one-stop solutions for global clients.
Certificate Of Honor
  • Declaration Of Conformity
  • Declaration Of Conformity
  • Voltage Protector CE-EMC Report
  • LVD Report
  • Quality Management System Certification Certificate
  • Supplier's Declaration of Conformity
  • Supplier's Declaration of Conformity
  • Supplier's Declaration of Conformity
  • Certificate of Conformity
  • Declaration Of Conformity
  • Declaration Of Conformity
  • Test Report
News
Voltage Protector Industry knowledge