In this article, we will focus on the NEMA 4X rating. What is a NEMA 4X Enclosure? A NEMA 4X enclosure is a type of electrical enclosure designed to provide a high level of protection against the elements.
Type 4X 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
NEMA 4X Enclosures, Cabinets and Boxes are intended for indoor and outdoor use primarily to provide a degree of protection against direct spray of water on the enclosure surface. NEMA 4X Type Enclosure, Box & Cabinet Examples.
NEMA 4X. 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 (windblown dust)
NEMA 4X Enclosure Characteristics: Indoor or outdoor use, including offshore applications. Protection against windblown dust and rain. Protection from splashing water and hose-directed water. Corrosion-resistant. Available with pre-punched holes, insulation retainers, welded couplings and view windows.
A typical NEMA enclosure might be rated to provide protection against environmental hazards such as water, dust, oil or coolant or atmospheres containing corrosive agents such as acetylene or gasoline. A full list of NEMA enclosure types is available for download from the NEMA website.
NEMA rating 3, NEMA rating 3R, NEMA rating 4, NEMA rating 4X, NEMA rating 6, and 6P are all waterproof ratings and the most common types you will come across. Whilst all of the above NEMA ratings are waterproof they all offer different levels of protection against water ingress.
The ''4'' in the NEMA 4X rating denotes the enclosure''s capability to resist ingress from solid particles (including windblown dust) and withstand water intrusion, even when subjected to direct hose-down or rain conditions.
The NEMA 4X definition, as established by the National Electrical Manufacturers Association, is a rating for an outdoor electrical enclosure that has the following protective qualities: Includes a gasket designed to protect against liquid and solid ingress. Suitable for indoor or outdoor use. Resistant to corrosion.
NEMA 4X is used when protection from the worst environments is required. Our NEMA 4 enclosures come in powder coated carbon steel and are available in a variety of types, such as wall-mounted, free-standing and JIC.