NEMA Ratings

The National Electrical Manufacturers Association (NEMA) defines standard ratings to ensure reliable enclosure design to resist elements in indoor and outdoor environments. View the NEMA definition for each type, or click “COMPARE NEMA TYPES” to see a comparison table across NEMA ratings.

Enclosures constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt).

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow); and, that will be undamaged by the external formation of ice on the enclosure.

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow); and, that will be undamaged by the external formation of ice on the enclosure.

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow); that provides an increased level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure.

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow); that will be undamaged by the external formation of ice on the enclosure that provides an increased level of protection against corrosion.

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow, splashing water, and hose-directed water); and, that will be undamaged by the external formation of ice on the enclosure.

Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow, splashing water, and hose directed water); that provides an increased level of protection against corrosion; and that will be undamaged by the external formation of ice on the enclosure.

Enclosures constructed (without knockouts) for indoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and circulating dust, lint, fibers, and flyings); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (dripping and light splashing) and to provide a degree of protection against light splashing and seepage of oil and non-corrosive coolants.

UL Rated

Enclosures manufactured and tested to rigorous standards for quality and safety.

Non UL Rated

Unrated enclosures allow flexibility to use lighter gauge steel and minimize cost for certain applications, while maintaining our design and construction approach.

Size Range

W x H x D: Unity part numbers read Width x Height x Depth.
Signature Series part numbers are the only exception; they read H x W x D.

BOX ENCLOSURES

Sizes offered range from 4x4x4 to 60x60x36

WIREWAY ENCLOSURES

Sizes offered range from 4x4x12 to 24x24x144

Ready to Assemble

Field installable kits are designed for flexibility and scalability.

Wireway Kit

– Unlimited length
– Easy to handle and assemble
– Field repairable
– Scale with modular sections

Enclosure Kit

– Easy to handle and assemble large enclosures
– 360-degree access

Material Type

Cold Rolled Steel

Industry standard, best option for powder coated paint, cost effective

Stainless Steel

Best for harsh environmental conditions like coastal climates, wastewater treatment plants, and certain chemical exposure

Galvanized Steel

Corrosion resistant and good for outdoor application, more cost effective compared to stainless steel

Aluminum

Lightweight and best for harsh environmental conditions like coastal climates, wastewater treatment plants, and certain chemical exposure

Back Panels

Perforated

Flexible configuration without the need to drill holes

Galvanized

Corrosion resistant, good for outdoor environments

Powder Coated

Powder coat provides a layer of protection and white color enhances visibility

Plywood

Easy to configure

Security

Locking options include padlockable, pull down hasp, and keyed locks

High Quality

We source from and have relationships with the leading hardware providers

Field Installable

Easy to install and replace

Hardware

Custom Holes, Cutouts and Knockouts

Improve the ease of operation and component installation through customization.

HOLES

Precise hole locations for screws, pushbuttons, and other attachment requirements

CUTOUTS

Ideal for displays, locking mechanisms, and pass-through openings in multi enclosure configurations

KNOCKOUTS

Maximum flexibility of hole location selection during installation

Airflow and Temperature Regulation

Manage airflow and temperature with custom location of louvers, grates, and exhaust fans

Airflow and Temperature Regulation

Manage airflow and temperature with custom location of louvers, grates, and exhaust fans

Voltage
Management

Subdivide an enclosure to compartmentalize high and low voltage

Voltage
Management

Subdivide an enclosure to compartmentalize high and low voltage

Color Options

Enclosures in custom colors are easy to identify for safety or brand recognition. Our powder providers can match any color. Some commonly ordered colors include red, orange, blue, yellow, and green. Our standard powder coat finish is the standard ANSI 61 gray, but we do so much more.

Company Logos

Silk screen logos to amplify your brand

Digital Screenprinting

Precision digital printing ideal for text, such as interface labeling or instructions

Explore our full range of Enclosure Solutions

POWER

SOURCE

POWER

DISTRIBUTE

POWER

CONTROL