NEMA 1 / 3R / 4 / 4X options
NEMA-Rated Enclosures Manufacturer
We manufacture high-quality NEMA-rated enclosures designed to protect electrical components from dust, water, corrosion, and environmental hazards. Whether you’re working in harsh industrial settings or outdoor installations, our NEMA enclosures offer reliable and certified performance.
Understanding NEMA Ratings
| NEMA Rating | Protection Level | Typical Application |
|---|---|---|
| NEMA 1 | Indoor, basic protection against dust | Control cabinets in dry environments |
| NEMA 3R | Rainproof, suitable for outdoor use | Utility boxes, solar system panels |
| NEMA 4 | Watertight, resists splashing and hose-directed water | Indoor/outdoor washdown areas |
| NEMA 4X | Same as NEMA 4 + corrosion resistance | Marine, chemical, food processing |
Our NEMA-Rated Enclosure Products
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Vililong Product Display
NEMA 3R Powder-Coated Steel Enclosure
Compact, Corrosion-resistant,CE,IP65
Introduction
The NEMA 3R Powder-Coated Steel Enclosure is designed for reliable outdoor performance. It provides protection against rain, snow, and sleet, making it ideal for utility, solar, and general electrical applications. The powder-coated finish enhances corrosion resistance and ensures a clean, professional appearance.
Material selection
-Powder-Coated Steel
Support
Custom sizes｜Material thickness｜Filter&Fans｜Pre-cut holes for cable entry and ventilation｜Custom Logo/Text
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Vililong Product Display
NEMA 4 Wall-Mounted Cabinet
Compact, Corrosion-resistant,CE,IP65
Introduction
The NEMA 4 Cabinet is a fully enclosed, watertight solution designed to protect electrical equipment from dust, rain, splashing water, and hose-directed water. Ideal for use in industrial facilities, food processing plants, and outdoor settings where frequent cleaning or exposure to moisture is expected.
Material selection
-Powder-Coated Steel
Support
Custom sizes｜Material thickness｜Pre-cut holes for cable entry and ventilation｜Custom Logo/Text
Learn more
Vililong Product Display
NEMA 4X Stainless Steel Enclosure
Flexible & Expandable system,CE,IP65
Introduction
The NEMA 4X Stainless Steel Enclosure is built for extreme conditions where both water and corrosive elements are present. Made from high-grade SUS304 or SUS316 stainless steel, it provides full protection against dust, high-pressure water jets, and chemical exposure. It is ideal for applications in marine, chemical processing, food and beverage, and pharmaceutical industries.
Material selection
-SUS304
-SUS316
-SUS316
Support
Custom sizes｜Material thickness｜Cabinet air conditioning｜Pre-cut holes for cable entry and ventilation｜Custom Logo/Text
Nonstandard NEMA-Rated Enclosure Are Customizable
0. Consultation (Optional)
Discuss project requirements, application conditions, and enclosure recommendations.
1. Submit Your Design
DWG, STEP, PDF, or even a sketch — we accept all formats and provide quick feasibility checks.
2. Technical Evaluation
Our engineers review structure, materials, cutouts, and protection level requirements, offering optimization if needed.
3. Prototyping & Sampling
Prototype or small-batch samples are produced to verify dimensions, fitment, strength, and surface finishing quality.
4. Mass Production
After approval, full-scale fabrication begins—laser cutting, bending, welding, assembly, and coating under strict QC.
5. Packing & Delivery
Finished enclosures are inspected, packaged with protective materials, and shipped globally by sea or air.
Comprehensive Customization Options for Your Metal & Electrical Enclosures
Size
Custom width, height, and depth tailored to your installation and component layout needs.
Color
Industrial-grade RAL powder coating for safety identification and corrosion resistance.
Material types & Thickness
Cold-rolled steel, stainless steel, galvanized steel, or aluminum with selectable thickness based on strength and protection requirements.
Door and hinge Types
Single-door, double-door, reinforced door designs, concealed or lift-off hinges.
Door Locks
Quarter-turn locks, key locks, padlockable handles, and compression latches.
View Windows
Polycarbonate or tempered-glass viewing windows for safe equipment monitoring.
Mounting Plate
Custom mounting plates for breakers, relays, contactors, and internal components.
UV Printing
Durable UV printing for labels, warnings, logos, or control panel markings.
Enclosure Rating
IP54 / IP55 / IP65 and NEMA protection levels based on sealing design and environment.
Accessories
Cooling fans, ventilation louvers, lighting, brackets, cable glands, document holders, etc.
Cutouts & Machining
Laser-cut openings for switches, displays, connectors; CNC machining for precision interfaces.
Surface Finishing Options
Powder coating, spraying, galvanizing, brushing, polishing, and anti-corrosion treatments.
Professional Custom Enclosure Manufacturer
Wenzhou Vililong Technology Co., Ltd.
We are a professional manufacturer specializing in high-quality Electrical enclosures, offering a wide range of solutions for electrical and industrial applications. Our products, including Electrical Distribution Boxes&Cabinets, as well as customized enclosures and Rittal Alternatives, are engineered using advanced sheet metal processing technologies (such as laser cutting,CNC bending, welding robots, etcto) ensure precision, durability, and superior performance.
0Years experience
Electrical Enclosure
Manufacturing
Manufacturing
0Employees
R&D, design, production
Technical team
Technical team
0Equipments
Automated production equipment
0sqm
Modern production and manufacturing base
Laser Cutting Machine
It can be used for cutting a variety of metal materials and has the advantages of fast processing speed, fine workmanship, strong adaptability and high flexibility..
CNC Bending Machine
Precise and accurate CNC bending equipment. Customized design to meet your multiple bending needs.
Bending Machine
Large tonnage bending machine to meet customer requirements for large box.
Welding Robot
Panasonic welding robots provide you with reliable peace of mind and assured products
Professional Drawing
Professional sheet metal engineers to meet customer customization needs.
Quantity Production
5000 square meters of plant and professional production equipment and personnel, to meet the mass production of customers.
Certification
CE
IP65
ISO9001
Valuable Partner
China National Petroleum Corporation
State Grid of China
DEMAC Electric Co., Ltd.
Zhejiang Communications Investment Group
Whenzhou Xihe Electric Co.,LTD.
China XinYi Electric Co.,LTD.
Professional Panel Enclosure Manufacturer
Help You Succeed
How Can We Help Your Business?
What’s your company main products?
The main business is to provide customers with custom enclousure services, we also sell some General Boxes.
How about the price of the product?
We are a manufacturer, we mainly provide customized services for our customers, and we believe that our prices have enough advantages.
What does the enclosure customization service contain?
Box Sizes,Box Colors,Door Types,Gland Plates,Specific Cutouts,Moutning Plates,Protective Covers,Standing Types,Windows,Thickness,Accessories.
Can we get the sample? Is it free?
Yes, we could offer the general box sample for free charge,but need you pay the express. The freight depends on weight, packing size and your country or province region, etc.
What’s about MOQ?
First order MOQ=1pcs.
How can I get product catalogs?
You can get the catalogs by contacting us.
How to order our product?
1.Please tell us the model and quantity and other request you need.
2.We make the PI for you.
3.After you confirm the PI, we arrange the order for you after receiving your payment.
4.After the goods finished, we send the goods out to you and tell you the tracking number.
5.We will track your goods until you receive the goods.
How about the after-sale service?
If you meet any problems after sales, pis contact us freely, we’ll help solving the problems within 24 hours.
What’s the payment term?
100% T/T (large order, accept 30% T/T prepay 70% balance before shipping), Western Union, Paypal.