Choosing the right electrical enclosure manufacturer can feel overwhelming with so many options out there. Your projects depend on high-quality, durable enclosures—but how do you know which U.S. factory truly delivers? The right partner can save you time, money, and countless headaches down the line. Top manufacturers mean reliable products, expert support, and peace of mind. Ready to discover the best in the business? Read on to find out which U.S. electrical enclosure companies stand out from the rest!

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Electrical Enclosures | nVent HOFFMAN

Electrical Enclosures | EXM Manufacturing

Product Details:
EXM Manufacturing offers a large selection of electrical enclosures and accessories, including standard and custom solutions, with over 20,000 standard products available. Their product line covers industrial, commercial, and climate control enclosure needs, as well as a wide variety of accessories. They provide both off-the-shelf and customized enclosures using their BOX CAD software for tailored solutions.

Technical Parameters:
– NEMA / IP rated enclosures available
– Range of enclosure sizes and dimensions (searchable by dimensions in inches)
– Materials include stainless steel and non-metallic options
– Accessories such as climate control (air conditioners, fans, heaters), mounting

Application Scenarios:
– Industrial environments requiring wall mount, free-standing, modular,
– Commercial settings such as pull & junction box installations, metering
– Highly demanding and hygienic applications (e.g., food & beverage,
– Automation, power control, renewable energies, water & pump control, oil, gas,

Pros:
– Extensive product catalog with 20,000+ standard products in stock
– Custom enclosure solutions available via free BOX CAD software
– Comprehensive accessory and climate control offerings for diverse enclosure
– Industry certifications (ISO 9001:2015) and technical documentation available

Cons:
– Technical details and specifications for individual products are not detailed
– Possible complexity for new users to navigate or choose from the broad product

Electrical & Electronic Enclosures, Cabinets & Racks, Outlet Strips and …

Product Details:
Hammond Manufacturing offers electrical and electronic enclosures, cabinets and racks, outlet strips for power distribution, and electronic transformers including classic audio transformers.

Technical Parameters:
– Enclosure dimensions specified as AxB(xC), default in inches or millimeters if
– Rack and cabinet sizes referenced by rack units (e.g., 36U, 44U)
– Products can be searched by partial or full part numbers, cross-reference

Application Scenarios:
– Electrical and electronic equipment protection and organization
– Rack-mounted equipment installations in data centers or industrial settings
– Power distribution via outlet strips in industrial, commercial, or laboratory
– Audio and electronic projects requiring transformers

Pros:
– Wide range of enclosure sizes and rack configurations to fit various needs
– Ability to cross-reference and match competitor part numbers enhances
– Bilingual support (English and French) and global distribution network
– Reputation for quality products and service excellence

Cons:
– Technical details, certifications, and specifications for individual products
– Specific product performance data and material specifications are not provided

Milbank – Quality Metering, Enclosed Controls and Enclosures

Product Details:
Milbank offers electrical meter sockets, enclosures, pedestals, power distribution equipment, and related electrical solutions designed for residential, commercial, industrial, utility, and renewable energy applications.

Technical Parameters:
– Available in various amperages including 100A, 200A, 320A, and 400A
– Options include ring and ringless designs, overhead and underground feeds, and
– Constructed from galvanized steel, stainless steel, or aluminum for outdoor or
– Products comply with UL standards and are utility-approved in many regions

Application Scenarios:
– Single-family and multi-family residential homes
– Commercial and industrial facilities requiring metering and power distribution
– Utility-scale infrastructure including smart grid modernization
– Renewable energy projects such as solar and wind installations

Pros:
– Wide selection of metering and power distribution products to fit various needs
– Durable materials suitable for harsh, outdoor environments
– UL listed and utility-approved, ensuring code compliance
– Custom solutions and configurations available to meet project-specific

Cons:
– Some products may require professional installation due to complexity
– Compatibility with local utility requirements must be confirmed, as approvals
– Higher-end materials (e.g., stainless steel models) can be more costly

50 Best Electrical Enclosures Manufacturers – iEVPower

Product Details:
Custom and standard electrical enclosures designed to house and protect electrical and pneumatic devices, available in a variety of models such as wall mount enclosures, MCC drop-over enclosures, and multi-door multiple-compartment models. Products are offered in a range of metals and with comprehensive customization services.

Technical Parameters:
– Materials: Carbon steel, aluminum, stainless steel; galvanized and 304/316
– Over 1300 standard enclosure configurations
– NEMA Types 1, 3, 3R, 3S, 4, 4X, 12 rated enclosures
– Certified to UL, C-UL, ATEX, IECEx, ISO 9001:2015 standards

Application Scenarios:
– Industrial electrical systems
– OEM equipment protection
– Energy and telecom sectors
– Installations needing low-volume custom or complex enclosure solutions

Pros:
– High degree of customization and free online customization tool
– Use of certified, globally recognized standards and broad material selection
– Advanced manufacturing technologies including laser cutting and seamless gaskets
– Strong customer service and design/drafting support

Cons:
– Low-volume, high-mix customization focus may not suit high-volume, generic needs
– Most features cater to customers with complex or specific requirements rather

Top 30 Electrical Enclosure Manufacturers in USA and China

Electrical Enclosure Manufacturer – Custom Electrical Enclosures | ETA …

Product Details:
ETA Enclosures is a manufacturer specializing in high-quality custom and standard electrical enclosures. Their product portfolio includes wall-mount enclosures, modular and freestanding enclosures, operator interface enclosures, terminal and junction boxes, and thermal management solutions, available in various sizes, materials (including mild steel and stainless steel), and finishes.

Technical Parameters:
– Enclosures available in mild steel and stainless steel options
– Wall-mount, modular, and freestanding configurations
– Thermal management features including cooling fans, filters, heaters, and
– Designed for durability and protection in harsh and demanding environments

Application Scenarios:
– Industrial automation
– Electrical distribution
– Machine building and manufacturing
– Water & wastewater, food & beverage, oil & gas, telecom/data centers,

Pros:
– Custom design flexibility to meet specific requirements
– Robust construction for harsh environments
– Advanced production technologies and materials for durability and reliability
– Comprehensive range for multiple industrial applications

Cons:
– No specific mention of certifications or compliances such as NEMA/IP ratings
– Detailed technical specifications and dimensions are not provided in the

NEMA Enclosures – Industrial Electrical Enclosures Manufacturer | Nema …

Product Details:
Nema Enclosures manufactures environmentally rated industrial electrical enclosures from powder-coated carbon steel, 5052 aluminum, and 304 or 316L stainless steel. They offer over 1300 standard enclosure configurations with custom design and manufacturing capabilities, suitable for global certifications such as UL, C-UL, ATEX, and IECEx.

Technical Parameters:
– Materials: Powder-coated carbon steel, 5052 aluminum, 304 or 316L stainless
– Certifications: UL, C-UL, ATEX, IECEx
– Standard ratings: NEMA 1, 3R, 4, 4X, 12, 12K; IP54, IP55, IP65, IP66
– Customization options: Gland plates, view windows, door-on-door enclosures,

Application Scenarios:
– Industrial environments requiring environmental protection for electrical
– Indoor and outdoor applications, including hazardous (potentially explosive)
– Projects needing low-volume, high-mix, make-to-order enclosures
– Global installations where various regional certification standards are

Pros:
– Extensive range of materials and standard configurations (over 1300 designs)
– Custom design and manufacturing, even for low volumes (from 1 unit)
– Global certification support (UL, C-UL, ATEX, IECEx) with no limitation on size
– Customization (gland plates, windows, etc.) does not affect certification

Cons:
– Focus on low-volume, high-mix production may result in higher unit costs for
– No information on lead times or large-scale, high-volume production capability

Top 16 NEMA Enclosures Manufacturers in the USA – E-Abel

Product Details:
Eabel’s NEMA enclosures are designed to protect electrical and electronic equipment from environmental hazards, meeting stringent NEMA standards. Their range includes NEMA 4, 4X, 12, and 13 rated enclosures made from materials such as stainless steel and intended for both indoor and outdoor industrial use.

Technical Parameters:
– NEMA 4: Watertight and dustproof, suitable for outdoor use
– NEMA 4X: Corrosion-resistant materials (e.g., stainless steel), suitable for
– NEMA 12: Protection against dust, falling dirt, and dripping non-corrosive
– NEMA 13: Protection against dust, water and oil spray, and coolants; suitable

Application Scenarios:
– Industrial manufacturing—protecting machinery controls and electrical components
– Outdoor applications such as telecommunications, renewable energy, and
– Food and beverage industry—especially washdown areas in processing plants
– Pharmaceuticals, healthcare, and data centers—providing contamination-free

Pros:
– Highly adaptable to diverse environmental conditions (humidity, dust, corrosion
– Long-term durability due to high-quality construction and materials
– Enhanced protection against physical impacts, unauthorized access, and
– Cost-effective by reducing maintenance and equipment replacement needs

11 Custom Electrical Enclosure Manufacturers in 2025 | Metoree

Product Details:
Custom electrical enclosures are protective cases, often box-like and rectangular, made from materials such as metal or plastic. They are designed to safeguard internal electrical devices from environmental factors and hazards, with options for NEMA and IP-rated protection, as well as industry certifications and custom modifications.

Technical Parameters:
– Constructed from materials like powder-coated carbon steel, stainless steel,
– Available in standard or custom configurations, including NEMA/IP
– Custom modifications possible through CNC machining, printing, and online
– Supports compliance for regulatory standards such as NEMA, RoHS, REACH, CA Prop

Application Scenarios:
– Outdoor use to protect devices from rain, dust, and the elements
– Industrial environments such as control panels, distribution boards, oil and
– Telecommunications, security, traffic control, transportation, renewable energy

Pros:
– Highly customizable to meet unique customer requirements and industry standards
– Wide range of materials and protection ratings for different environments and
– Manufacturer support, including engineering assistance, online quoting, and
– Durable construction with options for waterproof, dustproof, and explosion-proof

Cons:
– Potentially higher cost and longer lead times for low-volume, fully custom or
– Complex requirements may require detailed consultation and design, increasing

Comparison Table

Company	Product Details	Pros	Cons	Website
Electrical Enclosures	nVent HOFFMAN
Electrical Enclosures	EXM Manufacturing	EXM Manufacturing offers a large selection of electrical enclosures and	Extensive product catalog with 20,000+ standard products in stock Custom	Technical details and specifications for individual products are not detailed
Electrical & Electronic Enclosures, Cabinets & Racks, Outlet Strips and …	Hammond Manufacturing offers electrical and electronic enclosures, cabinets and	Wide range of enclosure sizes and rack configurations to fit various	Technical details, certifications, and specifications for individual products	www.hammfg.com
Milbank – Quality Metering, Enclosed Controls and Enclosures	Milbank offers electrical meter sockets, enclosures, pedestals, power	Wide selection of metering and power distribution products to fit various	Some products may require professional installation due to complexity Compatibil	www.milbankworks.com
50 Best Electrical Enclosures Manufacturers – iEVPower	Custom and standard electrical enclosures designed to house and protect	High degree of customization and free online customization tool Use of	Low-volume, high-mix customization focus may not suit high-volume, generic	ievpower.com
Top 30 Electrical Enclosure Manufacturers in USA and China				kdmfab.com
Electrical Enclosure Manufacturer – Custom Electrical Enclosures	ETA …	ETA Enclosures is a manufacturer specializing in high-quality custom and	Custom design flexibility to meet specific requirements Robust construction for	No specific mention of certifications or compliances such as NEMA/IP
NEMA Enclosures – Industrial Electrical Enclosures Manufacturer	Nema …	Nema Enclosures manufactures environmentally rated industrial electrical	Extensive range of materials and standard configurations (over 1300	Focus on low-volume, high-mix production may result in higher unit costs for
Top 16 NEMA Enclosures Manufacturers in the USA – E-Abel	Eabel’s NEMA enclosures are designed to protect electrical and electronic	Highly adaptable to diverse environmental conditions (humidity, dust, corrosion		www.eabel.com
11 Custom Electrical Enclosure Manufacturers in 2025	Metoree	Custom electrical enclosures are protective cases, often box-like and	Highly customizable to meet unique customer requirements and industry	Potentially higher cost and longer lead times for low-volume, fully custom or

Frequently Asked Questions (FAQs)

What factors should I consider when choosing an electrical enclosure manufacturer in the USA?

Look for manufacturers with strong quality standards, relevant certifications (like UL or NEMA ratings), the ability to meet your customization needs, fast turnaround times, and good after-sales support. Reliable references and a proven track record in your industry are also important.

How can I verify the quality of an electrical enclosure manufacturer’s products?

Check if the manufacturer holds widely recognized certifications (such as ISO, UL, or NEMA), ask for product samples or case studies, and read reviews or request references from other customers. Visiting the factory, if possible, also offers valuable insight.

Are US-based manufacturers more expensive than overseas suppliers, and why might they be worth the investment?

US manufacturers can be more expensive, but they often provide faster shipping, easier communication, better quality assurance, and quicker support. If your project needs strict compliance, quicker turnarounds, or strong after-sales service, a US supplier may offer better value.

What customization options do electrical enclosure manufacturers typically offer?

Common customization options include size, material (such as stainless steel or polycarbonate), color, cutouts, mounting options, and special finishes. Many manufacturers also offer design assistance to ensure your enclosure meets specific application or environmental requirements.

How do I start working with a US-based electrical enclosure manufacturer?

Start by reaching out with your project requirements, such as size, material, quantity, and any design specifications. Ask for a quote, review their capabilities, request samples if needed, and discuss lead times before placing an order or arranging a site visit.