Top 10 Waterproof Enclosure Manufacturers in China: A Comprehensive Guide
Do you know the consequences of using low-quality waterproof enclosures?
As a protective component for electronic components, waterproof enclosures are mainly used to protect the normal operation of internal electrical components, circuits and terminal blocks. Under daily conditions, they provide waterproof, dustproof, moisture-proof, corrosion-resistant and impact-resistant protection to ensure stable equipment operation.
Low-quality waterproof enclosures often cause the following problems: waterproof failure due to material defects in rainy days, leading to short circuits after water intrusion; non-compliant flame-retardant ratings; aging, brittleness and pulverization after long-term sun exposure. All these will bring you unpredictable costs, so you must find reliable enclosures from trustworthy suppliers.
Today, I will introduce the top 10 manufacturers in China:
1.CHINT Electric
2.DELIXI Electric
3.Nader Electric
4.Shanghai Haofuman
5.Zhejiang Qianguang Electric (Your Company)
6.Schneider Electric
7.ABB (China)
8.Siemens
9.Feice Explosion-proof
10.Nanyu Electric Box
1. CHINT Electric
Full name: Zhejiang CHINT Electric Co., Ltd. Founded in 1997, headquartered in Wenzhou, Zhejiang. It focuses on the production of high-protection electrical products such as industrial waterproof enclosures. The NEH1 series is highly recommended.
These products have IP66 protection and flame-retardant materials, suitable for outdoor sockets, construction sites, charging piles, chemical plants and swimming pool areas.
2. DELIXI Electric
Established in 2007 as a joint venture with Schneider Electric, headquartered in Wenzhou, Zhejiang. Its main products include waterproof junction boxes, outdoor distribution boxes, industrial socket boxes and automotive electronic control waterproof housings. It is a reliable supplier.
These products feature IP66 high protection grade and ABS engineering plastic housing. Common series: CDPN, FSHXWK, B8631. Widely used in industrial control, construction, municipal engineering, new energy and automotive scenarios.
3. Nader Electric
Founded in 1999, it is a leader in high-end low-voltage electrical appliances and waterproof enclosures, headquartered in Shanghai. It focuses on high-protection enclosures, with high-quality materials ensuring excellent weather resistance, UL94-V0 high flame retardancy and long service life.
In addition, it also provides new energy waterproof cabinets, automotive ECU/sensor waterproof housings, and protection boxes for rail transit and communication base stations.
4. Shanghai Haofuman
Full name: Shanghai Haofuman Electric Equipment Co., Ltd. Founded in 2003. It specializes in the manufacture of high-end waterproof enclosures, serving industrial automation, wind power, photovoltaic, marine and automotive equipment fields.
No matter which industry you are in, you can find suitable solutions here.
5. Zhejiang Qianguang Electric (Your Company)
Located in Liushi Town, Wenzhou, Zhejiang – the Electric Capital of China. Founded in 2013, it is a professional manufacturer of automotive/industrial waterproof connectors and enclosures. It focuses on automotive ECU waterproof boxes, sensor waterproof housings, IP67/IP68 nylon waterproof boxes and connector supporting protection components.
6. Schneider Electric
Entered China in 1987, founded in France in 1836. Its representative products include NSY series IP66/IP67 waterproof boxes, polyester waterproof cabinets, industrial junction boxes and new energy vehicle electronic control protection boxes. It positions itself as high-end, safe, intelligent and green.
7. ABB (China)
Founded in 1995, it is a global leader in electrical and automation technologies. Its main products include IP68 special waterproof boxes, explosion-proof waterproof cabinets and corrosion-resistant stainless steel protection boxes. It provides high-security protection for power, marine, port, chemical, new energy and rail transit industries
8. Siemens
A German industrial giant that entered China in 1872. It has a well-known brand in China and provides high-quality protection projects for high-protection industrial applications.
9. Feice Explosion-proof
Its main product is SFH series junction boxes for industrial use, with a mainstream protection grade of IP65. Cost-effective.
10. Nanyu Electric Box
Mainstream protection grade: IP65. It specializes in enclosures made of 304/316L materials, so its positioning is distinctive.

How to Choose a Reliable Waterproof Enclosure Supplier
Before choosing a supplier, you must clarify your current project requirements. Secondly, it is also important to evaluate the supplier's capabilities.
Quick guide – you need to focus on the following:
Waterproof Enclosure Specifications
You must specify:
ABS+PC raw materials
Required IP rating
Indoor or outdoor application scenarios
Application dimensions
Certifications
Easy manual drilling
Evaluate Waterproof Enclosure Suppliers
Key factors for customers:
IP6x certification
ISO 9001 and ISO 14001
OEM/ODM design capability
Delivery time
MOQ and price
FAQ
How long can your waterproof enclosure protect electrical equipment when fully submerged?
According to our tests, it can maintain protection for more than 30 minutes when fully submerged.
What is the protection grade? What IP level can you reach?
Protection grade simply refers to the sealing performance of the enclosure (IP: dustproof and waterproof).
Our products can reach IP68. We can customize higher IP ratings if you need.
What sizes are available? Can you customize?
We provide standard sizes from small junction boxes to large distribution boxes. Customization is available.
What is the operating temperature range?
Generally -40℃ ~ 120℃, with stable performance in high and low temperature environments.
Are certifications available?
We support mainstream certifications such as CE, RoHS, IP test report and UL (depending on specific models).
Conclusion
With the continuous development of technology and craftsmanship, product selection has become an important challenge. Customized solutions are often cost-competitive. Please make sure to do thorough research.
If you have needs for high-protection electrical equipment, our engineers are ready to help you at any time.We provide one-stop solutions.
