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NEMA 12 Industrial Enclosures

NEMA 12 Enclosures

Categories of NEMA 12 enclosures offered by AutomationDirect include:
NEMA 12 industrial enclosures are designed to prevent the ingress of dust, water, and oil. NEMA 12 electrical enclosures are most often used for indoor applications of automation control and electronic drives systems. Some examples are packaging, material handling, non-corrosive process control, and manufacturing applications. Gasketed doors seal the enclosure's contents from airborne contaminants and non-pressurized water and oil. These NEMA enclosures are available in sizes from small wall mounts to multi-door freestanding models.

NOTE: For more details and specifications, select from the Subcategories above. For prices, click on the VIEW e-store icon.


What do the NEMA ratings mean? Top

NEMA enclosures meet the National Electrical Manufacturers Association standards for performance and protection of the electrical equipment installed within them. NEMA is the leading trade association in the U.S. representing the interests of electroindustry manufacturers of products used in the generation, transmission and distribution, control, and end-use of electricity.

Enclosures are given a NEMA rating according to the types of applications the enclosure serves.

  • NEMA 1
    NEMA 1 industrial enclosures are typically used for protecting controls and terminations from objects and personnel. This style of enclosure, while offering a latching door, does not have a gasketed sealing surface. NEMA 1 enclosures are used in applications where sealing out dust, oil, and water is not required. Motor start/stop stations are often housed in NEMA 1 enclosures.

  • NEMA 3R
    NEMA 3R electrical enclosures are typically used in outdoor applications for wiring and junction boxes. This style of weatherproof enclosure provides protection against falling rain, sleet, snow, and external ice formation. Indoors they protect against dripping water. This style of enclosure does not have a gasketed sealing surface. Some models have hasps for padlocking.

  • NEMA 4
    NEMA 4 industrial enclosures are used in many applications where an occasional washdown occurs or where machine tool cutter coolant is used. They also serve well in applications where a pressurized stream of water will be used. NEMA 4 enclosures are gasketed and the door is clamped for maximum sealing. They have continuous hinges, mounting feet, and padlock hasps. NEMA 4 enclosures are available in sizes from small wall mounts to two-door floor mount models.

  • NEMA 4X
    NEMA 4X enclosures are typically made of stainless steel or plastic. These NEMA enclosures are used in harsher environments than standard NEMA 4 units. Applications where corrosive materials and caustic cleaners are used necessitate the use of a NEMA 4X enclosure. Applications include food, such as meat/ poultry processing facilities, where total washdown with disinfectants occur repeatedly and petro-chemical facilities, including offshore petroleum sites. NEMA 4X is used when protection from the worst environments is required. NEMA 4X industrial enclosures are available in sizes from small wall mounts to two-door floor mount models. Hubbell Wiegmann metal NEMA 4X enclosures are made of 304 stainless steel.

  • NEMA 12
    NEMA 12 enclosures are designed to prevent the ingress of dust, water, and oil. NEMA 12 enclosures are most often used for indoor applications of automation control and electronic drives systems. Some examples are packaging, material handling, non-corrosive process control, and manufacturing applications. Gasketed doors seal the enclosure's contents from airborne contaminants and non-pressurized water and oil. These NEMA enclosures are available in sizes from small wall mounts to two-door floor mount models.

  • NEMA 4 & 12
    Hubbell Wiegmann’s “412” enclosures combine the attributes of NEMA 4 and NEMA 12 in an attractive, clean line enclosure. This enclosure features reversible doors for left or right opening, concealed hinges, and rear mounting holes for a more attractive installation. Optional mounting feet are available for conventional wall mounting. Wiegmann’s 412 enclosures are available in wall mount models up to 60" x 36".


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