What do the NEMA ratings mean?

What do the NEMA ratings mean?

the National Electrical Manufacturer Association
NEMA ratings are standards that are useful in defining the types of environments in which an electrical enclosure can be used. The NEMA rating system is defined by the National Electrical Manufacturer Association, and frequently signifies a fixed enclosure’s ability to withstand certain environmental conditions.

What is a NEMA-rated enclosure?

NEMA Ratings for Enclosures The National Electrical Manufacturer Association (NEMA) uses a standard rating system that defines the types of environments in which an electrical enclosure can be used, and frequently signifies a fixed enclosure’s ability to withstand certain environmental conditions.

What does NEMA 4X rating mean?

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.

What is a NEMA 2 rating?

NEMA 2 protection is the same as NEMA 1 in terms of preventing ingress of large solid objects. It adds protection against the ingress of dripping and light splashing water. This does not mean rain, as this is an indoor rating.

What does NEMA 12 enclosure mean?

NEMA 12 Enclosures constructed (without knockouts) for indoor use to provide a degree of protection against circulating dust or fibers, falling dirt and dripping non-corrosive liquids.

What is the difference between NEMA 4X and NEMA 12?

Thus, the NEMA 4 and NEMA 4X rated enclosures actually offer a somewhat more advanced level of protection than NEMA 12 enclosures. NEMA 4 enclosures offer protection against the following hazards, both indoor and outdoor: Splashing, dripping and hose-directed water. Access to hazardous parts.

What does NEMA 7 mean?

NEMA 7 enclosures are designed to contain an internal explosion without causing an external hazard. These enclosures are intended for indoor use in hazardous locations classified as Class I, Division I, Groups A,B,C, or D.

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 NEMA 13?

NEMA 13 enclosures are designed to protect electrical equipment from dust, sprayed water, oil and non-corrosive coolant in indoor environments. Dependable NEMA 13 boxes are available in plastic and aluminum in a variety of styles and sizes.

What is a NEMA 7 enclosure?

Is NEMA 4 or 12 better?

What does NEMA 12 rating mean?

The NEMA 12 rating is a common NEMA rating used for devices that need moderate indoor protection against dust and liquid ingress. It’s a good choice for when you need basic protection at an affordable price. A NEMA 12 rated enclosure should protect the device inside against: Accidental personnel contact.

What is a NEMA 8 enclosure?

Type 8 NEMA enclosures are defined as: Hazardous Locations-Oil-immersed Equipment- – Type 8 enclosures are intended for use indoors, in the atmospheres and locations defined as Class 1, Division I and Group A, B, C or D in the National Electrical Code.

What is a NEMA 12 enclosure?

What is a Type 12 enclosure?

Type 12 Enclosures constructed (without knockouts) for indoor 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 and circulating dust, lint, fibers, and …

What is a NEMA 8 rating?

NEMA-RATED ENCLOSURES FOR HAZARDOUS LOCATIONS: NEMA 8 enclosures are designed to prevent combustion in oil-immersed equipment, while NEMA 9 enclosures prevent the ignition of combustible dust. These particular enclosures are defined by the National Electric Code® (NEC) and National Fire Protection Association (NFPA).