What is a NEMA 3 enclosure?
What is a NEMA 3 enclosure?
NEMA 3 Enclosures constructed for either indoor or outdoor use to provide a degree of protection against rain, sleet and wind-blown dust, and will remain undamaged by the external formation of ice on the enclosure.
What is the difference between NEMA 3 and 3R?
NEMA 3 enclosures are intended for outdoor use primarily to provide a degree of protection against rain, sleet, wind blown dust and damage from external ice formation. NEMA 3R enclosures are intended for outdoor use primarily to provide a degree of protection against rain, sleet, and damage from external ice formation.
What is a Type 3R electrical enclosure?
Type 3R 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 …
What is the difference between NEMA 3 and 4?
A NEMA 4 rating is the same as a NEMA 3 rating, but it adds protection against hose directed water. The testing for NEMA 4 consists of spraying the enclosure with water at 65 gallons per minute from a 1-inch hose. This is a lot more water than in the NEMA 3 test, which is a water spray at 5 psi.
Where is a 3R enclosure used?
Still, NEMA 3R enclosures are used regularly to house switchgear, lighting, electrical junctions and other components in various outdoor applications. These enclosures can come in a variety of materials, sizes and styles, from versatile polycarbonate and aluminum boxes to rugged stainless steel enclosures.
What NEMA rating is explosion proof?
NEMA 7
NEMA 7 Indoor use in locations classified as Class I, Division 1, Groups A, B, C or D hazardous locations as defined in the National Electric Code (NFPA 70) (Commonly referred to as explosion-proof).
Is NEMA 3R outdoor rated?
Our adherence to UL 508A standards will give you a quality weatherproof enclosure resistant to rain, ice, and snow. NEMA 3R enclosures are compatible for both indoor or outdoor applications and holds the least demanding rating for outdoor use.
What is a NEMA 3 rating?
NEMA 3 RATINGS TESTING EXPLAINED Generally, NEMA 3 means the enclosure is weather-resistant. It protects the components against falling dirt and windblown dust, against weather hazards such as rain, sleet and snow, and is undamaged by the formation of ice.
Can NEMA 3R be used indoors?
NEMA’s official standards define a NEMA 3R enclosure as suitable for both indoor and outdoor use. It offers protection against a variety of elements including: Falling dirt and debris, as well as other solid foreign objects. Rain, snow, sleet – any type of moisture or water.