Nema Enclosures manufactures NEMA 3R enclosures for housing power distribution, lighting contractors, switch gear, and other electrical components that need to be protected in an outdoor environment. Our adherence to UL 508A standards will give you a quality weatherproof enclosure resistant to rain, ice, and snow
WHAT IS THE MAJOR DIFFERENCES BETWEEN NEMA 3 AND NEMA 4 ENCLOSURE RATINGS? A NEMA 4 rated enclosure generally provides a higher level of protection than does a NEMA 3 enclosure. As we noted, the spray test for the NEMA 4 enclosure is much more stringent and suggests different types of applications.
NEMA 3RX enclosures are designed with the same corrosion resistance as NEMA 4X, but since they are not required to be dust tight, louvers and other ventilation options can be added. NEMA 4 Indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts
NEMA 3 enclosures are intended for outdoor use primarily to provide a degree of protection against ...
NEMA Enclosure Types The purpose of this document is to provide general information on the definitions of NEMA Enclosure Types to architects, engineers, installers, inspectors and other
Type 4 and 4X NEMA rated enclosures are intended for indoor or outdoor use and provide the same protections as a NEMA 3 enclosure with additional protection against water ingress and/or hose-directed water. So, if you need to clean off your NEMA 4 enclosure, you don’t have to worry about water damaging your electrical components.
Below is a list of NEMA enclosure types; these types are further defined in NEMA 250- Enclosures ...
NEMA 3R – Same as NEMA 3 excluding protection against windblown dust. NEMA 3S – Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree