Are you looking for reliable relays at competitive prices? Do you need a China relay supplier that offers stable quality, fast delivery and low MOQ? Or are you searching for a custom relay manufacturer that can supply UL, TÜV, VDE and CQC certified relays for your target market?
If so, China is your best choice. China has the world's largest and most complete relay manufacturing ecosystem, producing roughly half of the world's relays. Its factories supply everything from PCB relays, power relays and automotive relays to magnetic latching relays and high-voltage DC relays for EVs and energy storage, all at highly competitive prices. Below, we present the top 10 relay manufacturers and suppliers in China to help you quickly find the right partner for OEM, ODM or bulk orders.
Quick Comparison of Chinese Relay Manufacturers
| Company | Main Relay Types | Location |
|---|---|---|
| 1. Hongfa | Power, automotive, signal, latching, industrial and high-voltage DC relays | Xiamen, Fujian |
| 2. Sanyou Lianzhong | General-purpose power, magnetic latching, automotive and new-energy relays | Dongguan, Guangdong |
| 3. Ningbo Forward Relay | Telecom, power, PCB, automotive and magnetic latching relays | Ningbo, Zhejiang |
| 4. Tianbo | Telecom, PCB, power, automotive and magnetic latching relays | Ningbo, Zhejiang |
| 5. Meishuo | Automotive, mini, PCB, power and magnetic latching relays | Yueqing, Zhejiang |
| 6. Songle | Ultra-miniature, PCB power (SRD series), signal and automotive relays | Yuyao, Zhejiang |
| 7. Shenler | Interface, industrial, PCB and time relays, sockets and relay modules | Yongjia, Zhejiang |
| 8. HKE | Signal, power, magnetic latching and automotive relays | Ningbo, Zhejiang |
| 9. Asiaon | Power, general-purpose, PCB, automotive, time and solid state relays | Yueqing, Zhejiang |
| 10. CDGKZ | Electromagnetic, ultra-thin, intermediate, solid state and PCB relays, sockets | Yueqing, Zhejiang |
1. Hongfa (Xiamen Hongfa Electroacoustic Co., Ltd.)
Established: 1984
Headquarters: Xiamen, Fujian, China
Main Products:
- Power relays
- Automotive relays
- Signal relays
- Magnetic latching relays
- Industrial relays
- High-voltage DC relays for new-energy applications
- Relay sockets and accessories
Company Overview
Hongfa is widely recognized as the world's largest relay manufacturer by shipments and sales. Its catalog covers more than 160 relay series and over 40,000 specifications, so many buyers can source several relay types from one supplier. Production runs on more than 250 automated lines across three R&D and manufacturing bases in China, plus a factory in Indonesia, with annual capacity reported at over 3 billion units. Hongfa relays carry UL, VDE, TÜV and CQC approvals and are sold in around 120 countries. Hongfa is listed on the Shanghai Stock Exchange (600885), which makes its company information easier to review than most suppliers.
Tips: Hongfa is a strong choice for high-volume OEM programs and for EV, solar and energy-storage projects that need high-voltage DC relays. Large customers receive the most direct attention, so if you only need small quantities, buying through an authorized distributor is usually faster. Always request the approval file number for the exact part you plan to use.
2. Sanyou Lianzhong (Sanyou Lianzhong Group Co., Ltd.)
Established: 2008
Headquarters: No. 27 Puxinhu Central 2nd Road, Tangxia Town, Dongguan, Guangdong, China
Main Products:
- General-purpose power relays
- Magnetic latching relays
- Automotive relays
- New-energy and photovoltaic relays
- Signal relays
Company Overview
Sanyou Lianzhong focuses on relays for home appliances, smart meters, EV charging and automotive systems. According to its investor disclosures, it ranks among the leading domestic relay makers by sales. The group develops its own automated production lines and makes key relay parts in-house, which supports consistent quality at volume. Its main production bases are in Dongguan, Ningbo and Anhui in China, with an additional subsidiary in Vietnam. Sanyou Lianzhong is listed on the Shenzhen ChiNext board (300932).
Tips: Sanyou is well suited to magnetic latching relays, which are widely used in smart meters, smart sockets and other energy-sensitive products. If supply-chain diversification matters to you, ask whether relays can be supplied from its Vietnam production base.
3. Ningbo Forward Relay Corporation, Ltd.
Established: 1986
Headquarters: No. 11, Lane 125, Qiwen Road, Ningbo, Zhejiang, China
Main Products:
- Communication (telecom) relays
- Power relays
- PCB relays
- Automotive relays
- Household appliance relays
- Magnetic latching relays
Company Overview
Ningbo Forward Relay is an export-focused manufacturer of electromagnetic relays. Company materials describe more than 30 production lines and around 10,000 relay specifications used in telecom equipment, vehicles and household appliances. The company states that about 60% of its output is exported to buyers in more than 50 countries and regions. It operates ISO 9001, ISO/TS 16949 and ISO 14001 management systems, and its relays are approved by VDE, UL, cUL, TÜV and CQC. It describes itself as the largest privately owned relay manufacturer in China.
Tips: Forward suits buyers who want broad product coverage from one supplier and are used to export documentation. Because certificates are issued per model, ask which approvals apply to the specific relay you want rather than relying on the company-wide list.
4. Tianbo (Ningbo Tianbo Ganglian Electronics Co., Ltd.)
Established: 1989
Headquarters: Hengxi Industrial Zone, Ningbo, Zhejiang, China
Main Products:
- Telecom (signal) relays
- PCB relays
- Power relays
- Automotive relays
- Magnetic latching relays
Company Overview
Tianbo is a Ningbo relay factory with a complete in-house process that includes mold making, metal parts, plastic parts and relay assembly. Company profiles report a dust-proof workshop of about 50,000 square meters, more than 600 employees and monthly capacity of roughly 25 million relays. It holds ISO 9001, IATF 16949 (formerly ISO/TS 16949) and ISO 14001 system certificates, and many of its relays are approved by UL, cUL, TÜV, VDE and CQC. Tianbo relays are stocked by several European distributors, including for automotive models.
Tips: A practical option for telecom, smart-meter, lighting and appliance projects. If you only need small quantities for testing, check distributor stock first, then move to direct factory orders once the design is approved.
5. Meishuo (Zhejiang Meishuo Electric Technology Co., Ltd.)
Established: 2007
Headquarters: No. 158, Wei 12th Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang, China
Main Products:
- Automotive relays
- Mini relays
- PCB relays
- Power relays
- Magnetic latching relays
Company Overview
Meishuo specializes in power and automotive relays used in air conditioners, refrigerators, washing machines and other appliances, as well as vehicle electrical systems. The company is based in Yueqing, one of China's main electrical-component clusters, and is listed on the Shenzhen ChiNext board (301295). Its relay datasheets list approval numbers for CQC, UL and TÜV, which makes it easier for buyers to check certification details before ordering.
Tips: Check approval status model by model. Some Meishuo datasheets show UL or TÜV approval as still in progress for newer models. If you need high-voltage DC or charging-related relays, request the specific datasheet and certificate list before committing.
6. Songle (Ningbo Songle Relay Co., Ltd.)
Established: 1995
Headquarters: Yuyao, Ningbo, Zhejiang, China
Main Products:
- Ultra-miniature electromagnetic relays
- PCB power relays (including the SRD series)
- Signal relays
- Automotive relays
Company Overview
Songle is a Sino-foreign joint venture that has focused on small electromagnetic relays for more than 20 years. The factory covers about 30,000 square meters of land and 50,000 square meters of workshop space, and the company handles design, mold making, plastic and metal processing in-house. Most Songle relays hold UL, TÜV and CQC approvals, and the company has also received IECQ component manufacturer recognition. Its relays are used by makers of vehicle electrical equipment, home appliances, communication equipment and industrial control products. The SRD series is a widely used PCB power relay, offered in 1a, 1b and 1c contact forms with coil voltages from 3 to 48 VDC in a compact 19 x 15.5 x 15 mm package.
Tips: A good fit for cost-sensitive, high-volume general-purpose relay needs. Minimum order quantities for standard models are often listed in the thousands, so confirm MOQ, packaging and lead time at quotation stage. For automotive use, confirm the quality system and qualification level required by your customer.
7. Shenler (Shenler Corporation Ltd.)
Established: 1985 (traces its history to the Yueqing Shenle relay factory; restructured as a joint-stock company in 2014)
Headquarters: No. 666 East Jiaotong Road, Wu'niu Street, Yongjia, Wenzhou, Zhejiang, China
Main Products:
- Interface relays
- Industrial relays
- PCB relays
- Time relays
- Relay sockets and accessories
- Relay modules
Company Overview
Shenler is an industrial relay specialist with more than 80 series and over 2,600 relay and socket models. The range covers PCB relays, industrial and interface relays, time relays, sockets, accessories and modules, so panel builders can often source relays and matching sockets from the same supplier. Its products have passed UL, CSA, CE, TÜV and CQC certification, and more than 65% of its output is exported. The company operates an ISO 9001 quality system and handles parts production, mold development, injection molding and final assembly.
Tips: Shenler is a natural fit for control cabinet and automation projects that use plug-in industrial relays. Ask for cross-reference tables if you are replacing relays from a European or Japanese brand, and buy relays and sockets together to avoid fit problems.
8. HKE (Zhejiang HKE Relay Co., Ltd.)
Established: 1976
Headquarters: Jiacun Industrial Zone, Yunlong Town, Yinzhou District, Ningbo, Zhejiang, China
Main Products:
- Signal relays
- Power relays
- Magnetic latching relays
- Automotive relays
Company Overview
HKE, also known as Huigang Electrical Appliance, is one of China's longest-established relay factories. It has been named among China's Top 100 electronic component enterprises since 2004. The company reports a total site area of around 78,000 square meters and monthly output of up to 18 million relays. It operates ISO 9001, ISO 14001 and IATF 16949 systems, and its relays are approved by UL, CSA, TÜV, VDE and CQC. HKE is a Sony Green Partner and exports to more than 40 countries, supplying telecom, audio-visual, home appliance and automotive applications.
Tips: With more than four decades of relay production, HKE is a low-risk option for signal and appliance relays. Its Sony Green Partner status suggests mature hazardous-substance control, which is useful if you need RoHS and material declarations for regulated markets.
9. Asiaon (Asiaon Electric Co., Ltd. / Asia Dragon Electric)
Established: 1989
Headquarters: No. 22 Punan 2nd Road, Economic Development Zone, Yueqing City, Zhejiang, China
Main Products:
- Power relays
- General-purpose relays
- PCB relays
- Automotive relays
- Time relays
- Solid state relays
- Relay sockets
Company Overview
Asiaon is a Yueqing-based relay manufacturer and a council member of the China Electronic Components Association and the China Relay Industry Association. The company produces more than 150 series and over 3,000 specifications of relays and sockets for industrial control, home appliances, communications and office equipment. It was among the early Chinese companies to pass ISO/TS 16949, and its products carry UL, cUL, TÜV, CE, RoHS, CCC and CQC approvals. Asiaon says its service network reaches 53 countries and regions and offers OEM and ODM support.
Tips: A convenient choice when you want relays, sockets and solid state relays from a single supplier for mixed industrial orders. Ask which series are stocked and which are made to order, as this has a direct effect on lead time.
10. CDGKZ (Zhejiang Chuangdao Electric Co., Ltd.)
Established: 2008
Headquarters: Meiyu Industrial Park, Yueqing City, Wenzhou, Zhejiang, China
Main Products:
- Electromagnetic relays
- Ultra-thin relays
- Intermediate relays
- Solid state relays
- PCB relays
- Relay modules
- Relay sockets
Company Overview
CDGKZ is a smaller Yueqing manufacturer that supplies relays together with matching relay sockets and relay modules, mainly for control cabinet and industrial automation applications. The company operates an automated facility of about 4,000 square meters with a team of more than 70 staff, and serves OEM and ODM customers with flexible small-batch and fast-turnaround orders, with a focus on markets such as India, Russia and the Middle East. CDGKZ also offers model cross-referencing and replacement support for legacy relays, including older Russian and Soviet-era types.
Tips: CDGKZ is best suited to small and medium orders, matched relay-and-socket sets and replacement of hard-to-find relays. For multi-million-piece annual volumes, compare it with the larger factories above. Send the original model number, a photo or the parameters, and ask for a sample before placing a production order.
How to Choose a China Relay Supplier
- Define the relay first. Know the coil voltage, contact rating, contact form (1a, 1b, 1c), mounting type and switching load (AC, DC or high-voltage DC) before you contact any China relay manufacturer.
- Match the factory to the application. Appliance relays, telecom relays, automotive relays and high-voltage DC relays are different product lines. Choose a supplier whose core business matches yours.
- Verify certificates by model. UL, TÜV, VDE and CQC approvals are issued for specific models. Ask for the certificate number and check it on the issuing body's database.
- Confirm it is a real factory. Check the business license scope, ask for a live video of the winding and assembly lines, and see whether certificates list the supplier's own factory address.
- Test samples before volume. Run electrical life, temperature rise and contact resistance tests on samples that match your real load.
- Compare more than unit price. Include MOQ, lead time, packaging, warranty, OEM or ODM options and after-sales support in your total cost.
Frequently Asked Questions
Who is the largest relay manufacturer in China?
Hongfa is generally ranked first in China and worldwide by relay shipments and sales. Sanyou Lianzhong, Ningbo Forward, Tianbo, Meishuo and HKE are other established Chinese relay companies with large production capacity.
Is a China relay factory reliable for industrial and automotive use?
Many Chinese relay manufacturers operate under ISO 9001, IATF 16949 and ISO 14001 systems and hold UL, TÜV, VDE and CQC approvals. Reliability still depends on the specific model, so request certificates, test reports and samples for the exact part you plan to buy.
How do I know if a supplier is a manufacturer or a trading company?
Review the registered business scope, ask for factory video of the production lines, and check whether certificates and datasheets are issued in the supplier's own name and factory address. A genuine relay manufacturer can usually explain its coil winding, contact assembly and testing process in detail.
Do Chinese relay suppliers accept small orders and OEM or ODM requests?
Many do, but MOQs vary widely. Large groups focus on volume programs, while smaller factories are often more flexible with trial orders and custom requests. Confirm MOQ, lead time and customization options during quotation.
Conclusion
Choosing the right China relay manufacturer comes down to matching the supplier to your relay type, certification requirements, order volume and delivery schedule. Large groups such as Hongfa and Sanyou Lianzhong suit high-volume programs, established factories such as Forward, Tianbo, HKE and Songle offer broad catalogs for appliance, telecom and automotive use, and specialists such as Shenler, Asiaon and CDGKZ serve industrial control and small-batch orders.
Before you place an order, shortlist two or three suppliers, request model-specific certificates and samples, and compare real quotations including MOQ, lead time and after-sales support. If you are still unsure which relay fits your project, send us your model number or parameters and our team will help you find a suitable solution.
