Let’s begin with a quick refresher on NEMA ratings. The NEMA rating scale is an industry standard issued by the National Electrical Manufacturers’ Association. It provides an eas… 展开

NEMA 3R is one of several ratings in the NEMA 3 category. All NEMA-3-rated enclosures are suitable for both indoor and outdoor use. Of course, that doesn’t mean that all the rating… 展开

Unlike some other NEMA 3 ratings, a NEMA 3R enclosure rating does not require the enclosure to offer protection from windblown dust and debris. For this reason, you’ll see some … 展开

You might also see a NEMA 3RX rating on some enclosures. Whenever a NEMA rating has an X added to the end (as with the NEMA 4X rating), it signifies protection against corrosio… 展开

IP ratingsare another enclosure rating scale used in Europe and other parts of the world to evaluate enclosures’ protective qualities. In some cases, device designers might need to specify a… 展开