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Enclosure Ratings
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NEMA VS. IP Ratings

Enclosure Protection Ratings & Standards

If you are looking to protect your electrical equipment, solar battery, or traffic control equipment, Bison Profab provides a large inventory of stock enclosures and manufactures custom electrical enclosures, traffic cabinets and control boxes to fit your needs. 

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IP

Description

IP44 Protection for the enclosed equipment from the entry of solid articles with a diameter greater than 1mm into the enclosure.
IP54 Commonly used as traffic control cabinets because of the ability to protect electrical equipment from splashing water or rain conditions.
IP55

Weather-resistant enclosures that include a degree of protection from windblown dust and ingress of water.

IP56 Designed very similar to NEMA 3 enclosures, however, 3R enclosures can be ventilated.
IP57 Often called rain tight enclosures due to their excellent weather resistance.
IP65 Generally manufactured using 304 & 316 stainless steel due to its protection from corrosive materials.
IP66 Dust tight enclosures that are constructed without punch outs.
NEMA

Description

NEMA 1 General purpose enclosures that are typically manufactured to protect live parts.
NEMA 2 Offer the same level of protection as NEMA 1, but NEMA 2 enclosures are drip-tight.
NEMA 3

Weather-resistant enclosures that include a degree of protection from windblown dust and ingress of water.

NEMA 3R Designed very similar to NEMA 3 enclosures, however, 3R enclosures can be ventilated.
NEMA 4 Often called rain tight enclosures due to their excellent weather resistance.
NEMA 4x Generally manufactured using 304 & 316 stainless steel due to its protection from corrosive materials.
NEMA 12 Dust tight enclosures that are constructed without punch outs.
NEMA 13 Built for indoor industrial applications that require protection from dust, lint, splashing oil and non-corrosive liquids.
Custom NEMA Enclosure We can fabricate a custom NEMA enclosure to any size range, from a small 12" x 12" x 12" electrical enclosure to a Walk-in Enclosure.

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