NEMA 3 Enclosure Manufacturer
Durable NEMA 3 enclosure designed for indoor/outdoor protection against falling dirt, rain, sleet, and external ice formation. Constructed with high-quality sheet metal, ensuring reliable protection for your electrical equipment in challenging environments. Custom sizes available with quick turnaround.
- Free quotes within one day
- Lead time as fast as 3-5 days
- ISO 9001：2015 certified
Custom NEMA 3 Enclosure
Our Custom NEMA 3 Enclosures are engineered to provide superior protection for your electrical equipment in demanding indoor and outdoor environments. Manufactured with premium-grade sheet metal and precision fabrication techniques, these enclosures offer reliable defense against falling dirt, rain, sleet, snow, and external ice formation.
Each enclosure is customizable to your requirements, with flexible dimensions, mounting options, and access points. Our experienced engineering team works closely with you to design enclosures that match your application needs while maintaining NEMA 3 standards.
NEMA 3 Enclosure Types
Wall-Mount NEMA 3 Enclosures
Custom-sized enclosures with mounting flanges, suitable for outdoor electrical and control equipment protection against rain and dust.
Free-Standing NEMA 3 Cabinets
Large-format industrial cabinets with reinforced structure, ideal for housing heavy equipment with multi-door access options.
NEMA 3 Disconnect Enclosures
Specifically designed for safety switches and circuit breakers, featuring padlocking capabilities and durable rubber gaskets.
NEMA 3 Terminal Boxes
Compact, sealed boxes for electrical connections, available in various sizes with customizable knockouts and mounting options.
Console NEMA 3 Enclosures
Sloped-top design for control panels and HMI interfaces, providing both protection and ergonomic operator access.
NEMA 3 Junction Enclosures
Weather-protected boxes for cable and wire connections, featuring removable covers and multiple conduit entry points.
Features of NEMA 3 Enclosure
- Weatherproof construction with gasketed seams and doors
- Industrial-grade sheet metal construction for maximum durability
- Corrosion-resistant finish for extended service life
- External mounting brackets for secure wall installation
- Heavy-duty continuous hinges for smooth door operation
- Quick-release latches for easy access
- Custom sizes and configurations available
- Designed to meet UL 50 standards
- Suitable for both indoor and outdoor applications
- Optional accessories including viewing windows and lock systems
- Professional cable entry solutions
- Superior dust and water protection (IP54 equivalent）
NEMA 3 vs. NEMA 3R Enclosure
NEMA 3 and NEMA 3R enclosures provide robust protection against falling dirt, rain, sleet, and snow, making them suitable for outdoor installations. The critical difference lies in their protection levels: NEMA 3 enclosures offer complete protection against windblown dust and rainwater, while NEMA 3R enclosures provide essential rainproof protection with ventilation allowances.
NEMA 3 is ideal for more demanding environments where dust-tight sealing is crucial. At the same time, NEMA 3R is commonly used for less severe outdoor applications where some ventilation is beneficial, such as air conditioning units and electrical junction boxes.
NEMA 3 vs. NEMA 3S Enclosure
NEMA 3 and NEMA 3S enclosures provide robust protection against windblown dust, rain, and external formation of ice. The critical difference lies in their ice protection capabilities: NEMA 3 enclosures protect against external ice formation, while NEMA 3S offers additional functionality by remaining operable even when ice-laden. Both are ideal for outdoor installations, but NEMA 3S is particularly suited for cold-climate applications where constant accessibility is crucial. Manufactured with precision sheet metal fabrication, these enclosures ensure reliable protection for your electrical components in challenging environmental conditions.
Applications of NEMA 3 Enclosure
NEMA 3 enclosures are widely deployed in outdoor industrial environments where protection against weather elements is crucial. Common applications include:
- Outdoor electrical junction and control boxes
- Roadside traffic signal control systems
- Marina and dockside electrical equipment housing
- Agricultural machinery control panels
- Commercial outdoor lighting systems
- Building automation control boxes
- Industrial park utility installations
- Outdoor telecommunications equipment
- Water treatment facility controls
- Construction site electrical distribution panels
These enclosures ensure reliable operation in challenging outdoor environments while protecting sensitive equipment from rain, sleet, snow, and windblown dust.
Why Choose Shengen to Customize Your NEMA 3 Enclosure
Regarding NEMA 3 Enclosure customization, Shengen stands out through our decade of sheet metal expertise and precision manufacturing capabilities. Our experienced engineering team ensures your enclosures meet exact specifications while providing superior protection against dust, rain, and other environmental factors.
We offer competitive pricing, quick turnaround times, and rigorous quality control throughout manufacturing. Our advanced CNC and stamping equipment delivers consistently high-quality results from prototype to mass production—Trust Shengen to create durable, weather-resistant NEMA 3 enclosures that perfectly match your requirements.
The Process Flow & Duration Estimation
Please note that the final cost depends on the customized service you require, the specifications of the raw materials used, the relevant national laws, and the distance of transportation. Take the example of booking a tall container of products:
Step 1: Drawing Design (within 1 day)
Designers use CAD to quickly as well as accurately modify designs to meet the desired specifications, ensuring that the final product meets the required specifications quickly and accurately.
Step 2: Product Proofing (1-2 days)
Product proofing is an essential part of the manufacturing process that can help businesses ensure the quality and consistency of their products while minimizing risks and costs associated with defects or errors in production.
Step 3: Bulk Manufacturing (1-3 days)
Once the specifications and quality of the product are confirmed to be in order, it is ready for mass production.
Step 4: Shipping (3-5 days)
Once the products arrive at their destination, you will receive an alert. You can plan how to collect your shipped goods.
Get A Free Quote
Contact us to get a free quote and more expertise about sheet metal fabrication. Your project will meet the right solution with Shengen.
Custom Sheet Metal Fabrication with Easy
At Shengen, We turn complex Into Simple! Follow the following three steps to start today!
- Tell us as specific as possible of your needs, provide the drawing, reference picture and share your idea.
- We will work on the best solution according to your requirements and drawing, the specific quote will be provided within 24 hours.
- We will start mass production after getting your approval and deposit, and we will handle the shipment.