China’s relay industry has become a global force, powering everything from EVs to factory automation. But with so many suppliers, who truly leads in 2025?
In this guide, we spotlight 10 standout Chinese relay manufacturers making waves through innovation, reliability, and global reach. Whether you’re sourcing or just exploring, you’ll find insights worth knowing.
Contents
- Why China Matters in the Global Relay Market
- Top 10 Relay Manufacturers in China (with Mini Profiles)
- Criteria for Selection: What Makes a “Leading” Relay Supplier?
- Tips for Choosing a Relay Supplier from China
- Future Outlook for China’s Relay Industry
- FAQs
- Discover Excellence with CDGKZ: Your Trusted Partner in Relay Innovation
Why China Matters in the Global Relay Market
China holds a pivotal position in the global relay market, primarily due to its strong manufacturing capabilities and significant cost advantages. As one of the world’s largest relay production bases, China boasts a well-established industrial system and abundant labor resources, efficiently meeting the huge demand for relays in the international market. Many internationally renowned relay brands choose to set up production facilities in China to leverage its mature supply chain and manufacturing capabilities, enabling large-scale production and cost control. At the same time, domestic Chinese relay companies have been continuously improving their technology and quality, gradually narrowing the gap with leading global brands and enhancing the competitiveness of Chinese-made products in the global market.
Furthermore, China’s vast domestic demand market injects sustained momentum into the relay industry’s development. With the rapid growth of emerging fields such as industrial automation, new energy, smart homes, and electric vehicles, the demand for high-performance relays within China has surged, driving companies to increase investment in research and development and promote product innovation and upgrades. Government support policies for key electronic components have also facilitated technological advancement and improved the autonomy and controllability of the industrial chain, making China not only the global manufacturing hub for relays but also an important driver of technological innovation and a trendsetter in the market. These factors collectively make China’s role in the global relay market increasingly significant and indispensable.
Top 10 Relay Manufacturers in China (2025 Edition)
| Supplier | Main Products | Location |
|---|---|---|
| Zhejiang Chuangdao Electric Co., LTD | Electromagnetic, time delay, control relays | Yueqing, Zhejiang |
| Hongfa Technology Co., Ltd. | General-purpose, power, automotive, high-voltage relays | Xiamen, Fujian |
| Song Chuan Group | Miniature, automotive, PCB relays | Dongguan & Xiamen |
| Ningbo Forward Relay Corp. | Miniature, signal, latching relays | Ningbo, Zhejiang |
| CHINT Electrics Co., Ltd. | Control, time, overload protection relays | Wenzhou, Zhejiang |
| TE Connectivity – Axicom China Division | Signal, telecom, instrumentation relays | Shanghai |
| Jintian Electric Co., Ltd. | Control, thermal, plug-in relays | Wenzhou, Zhejiang |
| Delixi Electric Co., Ltd. | Control, thermal, timer relays | Yueqing, Zhejiang |
| Fujitsu Relay (China Division) | Silent, signal, HVAC relays | Shenzhen, Guangdong |
| Shenzhen Sanyou Relays Co., Ltd. | Miniature electromagnetic, power, PCB relays | Shenzhen, Guangdong |
1. Zhejiang Chuangdao Electric Co., LTD
Zhejiang Chuangdao Electric is an emerging leader in relay manufacturing, with a focus on high-quality electromagnetic, time delay, and control relays. The company has gained recognition for producing reliable, compact relays that serve a wide range of automation and power applications.
With a strong R&D backbone and quality certifications such as CE and CCC, Chuangdao is expanding rapidly in both domestic and global markets. Their products are favored by OEMs for their stability, energy efficiency, and performance in complex environments.
- Main Products: Electromagnetic relays, time delay relays, control relays
- Technical Highlights: Independent R&D, CE/CCC certified, high durability
- Applications: Industrial automation, smart homes, power systems
- Location: Yueqing, Zhejiang Province
2. Hongfa Technology Co., Ltd.
Hongfa is the largest relay manufacturer in China and a global top-tier supplier. The company provides a wide array of relay types including general-purpose, automotive, and high-voltage relays, powering everything from smart meters to EV charging stations.
It has extensive production facilities, in-house testing labs, and a reputation for high precision and durability. Hongfa’s relays are used by Siemens, Bosch, and other major global companies.
- Main Products: General-purpose relays, power relays, automotive relays, high-voltage relays
- Technical Highlights: Top 5 globally, full supply chain, VDE/UL/TUV certified
- Applications: Automotive electronics, power automation, home appliances
- Location: Xiamen, Fujian Province
3. Song Chuan Group
Song Chuan specializes in high-performance mini relays and automotive relays. With precision production in mainland China, it has become a critical supplier for Tier-1 automotive and consumer electronics manufacturers.
Its relay solutions feature high contact reliability and compact dimensions, making them ideal for tight-space applications like car ECUs and smart appliances.
- Main Products: Miniature relays, automotive relays, PCB relays
- Technical Highlights: High contact reliability, TS16949 certified, strong OEM base
- Applications: Automotive control, home appliances, lighting systems
- Location: Dongguan & Xiamen, China
4. Ningbo Forward Relay Corp.
Forward Relay is a mid-sized export-oriented enterprise offering compact, high-sensitivity relays. The company is well-established in overseas markets, especially in Europe and the Middle East.
Its relays are praised for their stable performance, fast switching, and adaptability to automation environments.
- Main Products: Miniature relays, signal relays, latching relays
- Technical Highlights: Export-focused, CE/RoHS certified, compact design
- Applications: Communication equipment, smart meters, industrial control
- Location: Ningbo, Zhejiang Province
5. CHINT Electrics Co., Ltd.
CHINT is one of China’s largest low-voltage electrical manufacturers, with strong capabilities in producing intelligent control and protective relays for grid-level and industrial systems.
Their relays offer excellent thermal resistance and are built for long-term reliability in energy distribution environments.
- Main Products: Control relays, time relays, overload protection relays
- Technical Highlights: Grid-grade quality, global presence in 140+ countries, Schneider JV experience
- Applications: Energy systems, smart buildings, power distribution
- Location: Wenzhou, Zhejiang Province
6. TE Connectivity – Axicom China Division
As part of TE’s global network, Axicom China focuses on high-precision relays for communication and instrumentation systems. Their components are designed for environments requiring low power consumption and ultra-stable switching.
Backed by TE’s international standards and quality control, Axicom relays are used in many mission-critical systems.
- Main Products: Signal relays, telecom relays, instrumentation relays
- Technical Highlights: Global standards, ultra-small size, low contact resistance
- Applications: Telecom, medical devices, testing equipment
- Location: Shanghai, China
7. Jintian Electric Co., Ltd.
Jintian Electric focuses on economical yet reliable relays for power distribution systems and industrial equipment. Their strength lies in producing large volumes with consistent quality.
Its relay series is widely used by Asian OEMs due to its balance between price and performance.
- Main Products: Control relays, thermal relays, plug-in relays
- Technical Highlights: High production volume, fast delivery, CE/ISO9001 certified
- Applications: Distribution boxes, industrial panels, motor protection
- Location: Wenzhou, Zhejiang Province
8. Delixi Electric Co., Ltd.
Delixi is a household name in China’s low-voltage sector, offering a complete range of automation relays and protection devices. Its relays are commonly used in large-scale factory systems and power installations.
The company emphasizes safety, long lifespan, and electrical endurance.
- Main Products: Control relays, thermal relays, timer relays
- Technical Highlights: Established brand, international certifications, versatile compatibility
- Applications: Industrial systems, factory automation, construction power
- Location: Yueqing, Zhejiang Province
9. Fujitsu Relay (China Division)
Fujitsu’s relay production in China maintains the same strict QC protocols as its Japanese headquarters. Their products are compact, energy-efficient, and reliable for sensitive electronics.
Custom solutions are also offered for OEMs in the HVAC, automotive, and telecom markets.
- Main Products: Silent relays, signal relays, HVAC relays
- Technical Highlights: Japanese process control, OEM customization, strong heat performance
- Applications: Appliance control, vehicle modules, telecom systems
- Location: Shenzhen, Guangdong Province
10. Shenzhen Sanyou Relays Co., Ltd.
Sanyou is known for producing cost-effective, small-format relays that are exported globally. With automatic production lines and UL-certified products, it’s popular among mid-range appliance manufacturers.
Their strong ODM capabilities make them a go-to supplier for quick-turnaround projects.
- Main Products: Miniature electromagnetic relays, power relays, PCB relays
- Technical Highlights: Cost-effective, automated production, UL/VDE certified
- Applications: Home appliances, smart home, power tools
- Location: Shenzhen, Guangdong Province
Criteria for Selection: What Makes a Leading Relay Supplier?
High-Quality and Reliable Relay Products
A leading relay supplier delivers dependable products such as automotive relays, industrial relays, and power relays that meet international standards like ISO 9001 and UL certification, ensuring durability and safety.
Wide Range of Relay Types and Customization
They offer various relay types including electromagnetic relays, solid-state relays, and miniature relays, with customization options for specific uses like smart home automation or electric vehicle relay modules.
Timely Delivery and Competitive Pricing
Efficient supply chain management guarantees on-time delivery of relay components essential for industries like industrial automation and renewable energy, while maintaining competitive pricing.
Focus on Innovation and R&D
Leading suppliers invest in developing advanced relay technologies such as low-power coil relays, high-voltage DC relays, and miniaturized relays to meet emerging demands in electric vehicles and smart grids.
Customer Support and Flexible Service
Providing technical support, custom engineering, and after-sales service ensures customer satisfaction and long-term partnerships in sectors like telecommunications and building automation.
Tips for Choosing a Relay Supplier from China
1. Understand the Supplier’s Product Focus
Different manufacturers in China specialize in different relay types, such as automotive relays, industrial control relays, or miniature PCB relays. Make sure the supplier’s product line matches your technical and application needs to avoid compatibility or performance issues.
2. Check Certifications and Compliance
Ensure the supplier holds relevant international certifications such as ISO 9001, IATF 16949, UL, CE, or RoHS. These indicate adherence to global quality and safety standards, which is especially important if your end products are intended for regulated markets.
3. Evaluate Production Capacity and Lead Time
A supplier’s ability to meet your order volume and deadlines is critical. Ask about monthly output, peak season capacity, and delivery timelines to determine if they can support your production needs reliably over time.
4. Request Samples and Technical Reports
Before placing a bulk order, request product samples along with test data covering parameters like electrical life, switching time, and insulation resistance. This helps you evaluate real-world performance and ensures the relay meets your requirements.
5. Assess R&D and Customization Capability
Suppliers with in-house R&D teams can offer custom coil voltages, contact materials, or relay housing designs. If your application is unique or high-end, choose a supplier who can provide tailored solutions rather than just standard models.
Future Outlook for China’s Relay Industry
With rapid growth in electric vehicles, industrial automation, smart grids, and renewable energy sectors, China’s relay market is expected to maintain steady expansion in the coming years. National policies such as “Smart Manufacturing” and carbon neutrality goals are providing strong support for domestic relay manufacturers, driving technological upgrades and product diversification. High-voltage DC relays, smart relays, and miniaturized relay components are set to become key development areas.
At the same time, the industry faces a transition challenge from traditional electromechanical relays to solid-state relay technology. Increasing global competition and pricing pressure are pushing Chinese companies to boost R&D investment and focus on higher-value products. Companies that can achieve breakthroughs in smart functionality, miniaturization, and reliability will gain a stronger position in the global relay market.
FAQs
Q: What criteria were used to select the top 10 relay suppliers in China for 2025?
A: Selection was based on production capacity, technology, market share, export performance, and customer feedback in core relay segments.
Q: Are these Chinese relay suppliers suitable for international buyers?
A: Yes, most listed companies meet international standards like UL, CE, and ISO, and offer global shipping and technical support.
Q: Do any of the top 10 suppliers specialize in automotive relays?
A: Yes, several focus heavily on EV and automotive relays, especially for high-voltage and battery management applications.
Q: Can small businesses or startups source from these top Chinese relay suppliers?
A: Many of them offer flexible minimum order quantities and have English-speaking sales teams to support smaller-scale buyers.
Q: How do I verify the quality of products from these leading suppliers?
A: Look for product certifications, request datasheets or samples, and check third-party reviews or long-term customer references.
Discover Excellence with CDGKZ: Your Trusted Partner in Relay Innovation
These 10 suppliers represent the best of China’s growing relay expertise. They lead in quality, technology, and global competitiveness.
As you plan your next sourcing move, we invite you to explore CDGKZ—a rising brand known for dependable relays, fast delivery, and dedicated support. Discover what sets us apart.
