Introduction to Surge Protector
A surge protector, also known as a surge suppressor or surge diverter, is an electrical device designed to protect electrical equipment from voltage spikes. Voltage spikes, or surges, are brief over – voltages that can occur due to various reasons such as lightning strikes, power grid switching, or the operation of large electrical appliances. These surges can damage sensitive electronic components in devices like computers, televisions, and industrial machinery. Surge protectors work by diverting the excess voltage to the ground, thereby preventing it from reaching the connected equipment and ensuring the safe and stable operation of electrical devices. Surge Protector

Now, let’s take a look at the top 10 surge protector factories in China in 2026.
1. Shanghai Longyin Elec&Tech Co., Ltd.
Shanghai Longyin Elec&Tech Co., Ltd. is a leading enterprise in the field of electrical protection products. With years of experience in research, development, and production, the company has established a solid reputation in the market. The company is committed to providing high – quality surge protectors that meet international standards. Their products are widely used in various industries, including telecommunications, power systems, and industrial automation.
Features in Surge Protector:
- Advanced Technology: Longyin uses the latest semiconductor technology in its surge protectors, which can quickly and effectively suppress voltage surges.
- High – Quality Materials: The company selects high – quality materials to ensure the reliability and durability of its products.
- Customization: It offers customized surge protection solutions according to the specific needs of different customers.
Advantages:
- Strong R & D Capability: The company has a professional R & D team that can continuously innovate and improve product performance.
- Good After – sales Service: Longyin provides comprehensive after – sales service, including installation guidance, maintenance, and technical support.
- Global Market Reach: Its products are exported to many countries and regions around the world.
Website: https://www.longyin-electric.com/
2. Phoenix Contact (China) Co., Ltd.
Phoenix Contact is a well – known international brand. In China, its factory is at the forefront of surge protector production. The company has a long – standing history in the electrical connection and automation technology field.
Features in Surge Protector:
- Diverse Product Range: It offers a wide range of surge protectors for different applications, from residential to industrial use.
- High – End Design: The products are designed with high – end technology, ensuring excellent performance in surge protection.
- Safety Standards: All products comply with strict international safety standards.
Advantages:
- Global Brand Reputation: Phoenix Contact is globally recognized, which gives customers confidence in its products.
- Innovative Solutions: The company is constantly innovating to provide the latest surge protection solutions.
- Extensive Distribution Network: It has a wide distribution network in China, ensuring easy access to its products.
3. ABB (China) Ltd.
ABB is a multinational corporation with a strong presence in China. Its surge protector products are known for their high quality and reliability.
Features in Surge Protector:
- Intelligent Protection: ABB’s surge protectors are equipped with intelligent monitoring systems that can detect and respond to surges in real – time.
- High – Capacity Protection: They can handle large – scale voltage surges, making them suitable for industrial and commercial applications.
- Long Service Life: The products are designed to have a long service life, reducing the need for frequent replacements.
Advantages:
- Global R & D Resources: ABB can leverage its global R & D resources to develop advanced surge protection technologies.
- Comprehensive Product Portfolio: In addition to surge protectors, ABB offers a full range of electrical products, providing customers with one – stop solutions.
- Strong Technical Support: The company has a professional technical support team to assist customers in product selection and installation.
4. Schneider Electric (China) Co., Ltd.
Schneider Electric is a leader in energy management and automation. Its surge protector products are an important part of its product portfolio.
Features in Surge Protector:
- Eco – friendly Design: Schneider’s surge protectors are designed with environmental protection in mind, using recyclable materials.
- Modular Design: The modular design allows for easy installation and maintenance.
- High – Performance Components: The products use high – performance components to ensure reliable surge protection.
Advantages:
- Brand Influence: Schneider Electric is a well – known brand, which is trusted by customers.
- Energy – Saving Features: Some of its surge protectors are designed to save energy, reducing the overall energy consumption of the system.
- Training and Education: The company provides training and education programs for customers to help them better understand and use its products.
5. Siemens (China) Co., Ltd.
Siemens is a global powerhouse in the electrical and electronics industry. Its surge protector products are of high quality and are widely used in various fields.
Features in Surge Protector:
- Precision Protection: Siemens’ surge protectors can provide precise protection against different levels of voltage surges.
- Compatibility: They are highly compatible with other electrical equipment, ensuring seamless integration into existing systems.
- Remote Monitoring: Some products support remote monitoring, allowing users to monitor the status of surge protectors in real – time.
Advantages:
- Global Technology Leadership: Siemens has a strong R & D team and advanced technology, leading the development of surge protection technology.
- Quality Assurance: The company has strict quality control systems to ensure the quality of its products.
- Industry – Specific Solutions: Siemens can provide industry – specific surge protection solutions according to the needs of different industries.
6. Eaton (China) Investment Co., Ltd.
Eaton is a diversified power management company. Its surge protector products are known for their high – performance and reliability.
Features in Surge Protector:
- Multi – stage Protection: Eaton’s surge protectors use multi – stage protection technology to provide comprehensive protection against surges.
- Fast Response Time: They can quickly respond to voltage surges, minimizing the damage to connected equipment.
- High – Temperature Resistance: The products can work stably in high – temperature environments.
Advantages:
- Global Experience: Eaton has rich global experience in power management, which is reflected in its surge protector products.
- Customized Solutions: The company can provide customized surge protection solutions for different customer needs.
- After – sales Support: Eaton offers comprehensive after – sales support, including product maintenance and replacement.
7. CITEL China Co., Ltd.
CITEL is a specialist in surge protection. In China, its factory is dedicated to producing high – quality surge protectors.
Features in Surge Protector:
- Specialized Design: CITEL’s surge protectors are designed specifically for different types of electrical systems, such as telecommunications, power, and industrial control systems.
- High – Frequency Protection: They can effectively protect against high – frequency voltage surges.
- Low – Residual Voltage: The products have low residual voltage, which can better protect sensitive electronic equipment.
Advantages:
- Surge Protection Expertise: CITEL has in – depth expertise in surge protection, and its products are highly recognized in the industry.
- Product Certification: All products have obtained relevant international and domestic certifications, ensuring their quality and safety.
- Technical Training: The company provides technical training for customers to improve their understanding and use of surge protectors.
8. DEHN + SÖHNE (China) Co., Ltd.
DEHN is a German – owned company with a strong presence in the Chinese market. Its surge protector products are of high quality and are widely used in various industries.
Features in Surge Protector:
- Innovative Technology: DEHN uses innovative technology in its surge protectors, such as the use of new materials and circuit designs.
- High – Energy Absorption: The products can absorb high – energy surges, protecting equipment from damage.
- Visual Indication: Some products are equipped with visual indication systems, allowing users to easily check the status of the surge protector.
Advantages:
- German Engineering Quality: The products are manufactured with German engineering standards, ensuring high – quality and reliability.
- Global R & D and Production Network: DEHN can leverage its global R & D and production network to continuously improve its products.
- Application – Oriented Solutions: The company provides application – oriented surge protection solutions for different industries.
9. OBO Bettermann (China) Co., Ltd.
OBO Bettermann is a well – known brand in the field of electrical installation and surge protection.
Features in Surge Protector:
- Compact Design: OBO’s surge protectors have a compact design, which is suitable for installation in limited spaces.
- Easy Installation: They are designed for easy installation, reducing installation time and costs.
- High – Quality Components: The products use high – quality components to ensure long – term reliable operation.
Advantages:
- Brand Reputation: OBO Bettermann has a good brand reputation, which is trusted by customers.
- Comprehensive Product Range: The company offers a comprehensive range of surge protectors for different applications.
- Technical Support: OBO provides technical support to help customers solve problems during installation and use.
10. LittelFuse (China) Co., Ltd.
LittelFuse is a global leader in circuit protection. Its surge protector products are known for their high – performance and reliability.
Features in Surge Protector:
- Fast – Acting Protection: LittelFuse’s surge protectors can quickly act to protect against voltage surges, minimizing the impact on connected equipment.
- Low – Capacitance Design: The low – capacitance design reduces signal interference, making them suitable for use in high – speed communication systems.
- High – Current Handling Capacity: They can handle high – current surges, providing reliable protection for industrial equipment.

Advantages:
- Circuit Protection Expertise: LittelFuse has extensive expertise in circuit protection, which is reflected in its surge protector products.
- Global Market Share: The company has a large global market share, indicating the high quality and popularity of its products.
- Continuous Innovation: LittelFuse is committed to continuous innovation to meet the evolving needs of the market.
Voltage Stabilizer In conclusion, these 10 factories represent the best in China’s surge protector manufacturing industry in 2026. Each of them has its own unique features and advantages, providing customers with a wide range of choices for surge protection solutions.