Custom Electrical NEMA Enclosures

Professional-Grade NEMA Enclosures for Every Application

Whether you need standard sizes or custom solutions, our team in Tallmadge, Ohio, just outside of Akron, delivers exceptional products with competitive pricing and industry-leading lead times.

What Are NEMA Enclosures?

NEMA (National Electrical Manufacturers Association) enclosures are protective housings designed to safeguard electrical and electronic equipment from environmental conditions and unauthorized access. Each NEMA rating indicates specific protection levels against elements like dust, water, ice, and corrosive materials.

Our NEMA Enclosure Capabilities

• Material Options: Steel, stainless steel, or aluminum construction to meet your specific requirements
• Customization: Custom sizes, configurations, and mounting options available
• Finishing Services: Professional powder coating and painting for enhanced protection and aesthetics
• Applications: Ideal for electrical enclosures, traffic cabinets, control boxes, junction boxes, and more
• Quality Assurance: Each enclosure is manufactured to strict NEMA standards and thoroughly inspected

Understanding NEMA Ratings

NEMA 1 Enclosures

• Environment: Indoor use only
• Protection Level:
  • Prevents accidental contact with enclosed equipment
  • Shields against falling dirt and debris
  • Basic level of protection for general indoor applications
• Common Uses: Office buildings, clean indoor environments, general purpose applications

NEMA 2 Enclosures

• Environment: Indoor use only
• Protection Level:
  • Includes all NEMA 1 protections
  • Additional resistance against light water splashing and dripping
  • Not suitable for heavy moisture exposure
• Common Uses: Indoor areas with minimal moisture exposure, like utility rooms or basements

NEMA 3 Enclosures

• Environment: Indoor and outdoor use
• Protection Level:
  • Protects against windblown dust
  • Weatherproof against rain, sleet, and snow
  • Sealed with gaskets for environmental protection
  • Remains undamaged by ice formation on the enclosure
• Common Uses: Construction sites, outdoor installations, shipping docks

NEMA 3R Enclosures

• Environment: Indoor and outdoor use
• Protection Level:
  • Provides protection against falling rain, sleet, and snow
  • Can include ventilation, which reduces dust protection
  • Remains undamaged by ice formation
• Common Uses: Outdoor electrical installations, HVAC equipment, irrigation controls

NEMA 3S Enclosures

• Environment: Indoor and outdoor use
• Protection Level:
  • Includes all NEMA 3 protections
  • Specialized door mechanisms allow operation even when ice-laden
  • Enhanced for extreme weather conditions
• Common Uses: Cold weather installations, northern climate applications

NEMA 3X, 3RX, 3SX Enclosures

• Environment: Indoor and outdoor use in corrosive environments
• Protection Level:
  • Same as their non-X counterparts (3, 3R, 3S)
  • Additional corrosion resistance for harsh environments
  • Suitable for coastal and chemical environments
• Common Uses: Seaside installations, water treatment facilities, chemical plants

NEMA 4 Enclosures

• Environment: Indoor and outdoor use
• Protection Level:
  • Includes all NEMA 3 protections
  • Enhanced water resistance against hose-directed water
  • Completely dust-tight construction
• Common Uses: Food processing plants, breweries, car washes, dairies

NEMA 4X Enclosures

• Environment: Indoor and outdoor use in corrosive environments
• Protection Level:
  • Includes all NEMA 4 protections
  • Superior corrosion resistance for harsh environments
  • Typically constructed of stainless steel or non-metallic materials
• Common Uses: Chemical processing, marine environments, wastewater treatment, food and beverage processing

NEMA 12 Enclosures

• Environment: Indoor use only
• Protection Level:
  • Dust-tight construction without knockouts
  • Protection against falling dirt and circulating dust
  • Resistant to dripping non-corrosive liquids and light splashing
• Common Uses: Industrial facilities, manufacturing floors, machine shops

NEMA 13 Enclosures

• Environment: Indoor use only
• Protection Level:
  • Protection against dust, lint, and fibers
  • Resistant to splashing oil and non-corrosive coolants
  • Sealed against industrial contaminants
• Common Uses: Machining centers, automotive manufacturing, industrial automation

Why Choose Midwest Metal Fabrications for Your NEMA Enclosures?

1. Quality Craftsmanship: Our enclosures are built with precision and attention to detail, ensuring long-lasting performance and reliability.
2. Competitive Pricing: We offer excellent value without compromising on quality or performance.
3. Quick Turnaround: Our efficient manufacturing processes allow for industry-leading lead times, even on custom orders.
4. Expert Consultation: Our team of specialists can help you select the right NEMA rating and specifications for your application.
5. American Made: Proudly manufactured in the USA with high-quality materials and craftsmanship.

Custom NEMA Enclosure Solutions

Need something specific? Our engineering team can design and manufacture custom NEMA enclosures tailored to your exact requirements. From unique dimensions to special mounting configurations, cutouts, or access points, we can deliver the perfect solution for your application.

Get Started Today

Protect your valuable equipment with high-quality NEMA enclosures from Midwest Metal Fabrications. Contact us today for a free quote and consultation.