NEMA Type 1 Enclosure

NEMA Type 1 Enclosure 

General Purpose. Primarily protects against
accidental contact with enclosed equipment.
Suitable for indoor use.
NEMA Type 12 Enclosure
Indoor Dusttight and Driptight. Without
knockouts. Protects against liquids that are not
corrosive including oil and coolants. Often found
in an industrial environment.
NEMA Type 12K Enclosure
Same as Type 12 but with knockouts in top and
bottom walls only.
NEMA Type 3 Enclosure
Dusttight, Raintight. Protects against dust and
rain. Used outdoors. They are not sleet (ice)
proof. Applications include ship docks, subways,
and tunnels.
NEMA Type 3R Enclosure
Rainproof, Sleet Resistant. Protects the normal
operation of the enclosed equipment from
interference due to rain, and resists equipment
damage due to sleet. For outdoor use in location
affected by rain and/or sleet.
NEMA Type 4 Enclosure
Watertight. Protects against water interfering in
the operation of the enclosed equipment. The
enclosure may be used outdoors or in dairies or
other food preparation environments.
NEMA Type 4X Enclosure
Watertight, Corrosion Resistant. Protection is
similar to NEMA Type 4 except Type 4X
enclosure is constructed of corrosion resistant
material. Used in fertilizer and chemical
manufacturing plants, meat packing plants
where environmental contaminants would
destroy the metal enclosure over time.
NEMA Type 5 Enclosure
Indoor Dusttight. Intended for use indoors to
protect enclosed equipment against fibers and
flyings, lint, dust, and dirt.
NEMA Type 7 Enclosure
Class 1, Group A, B, C and/or D. Indoor
Hazardous Locations. Protects against
explosions caused by electrical arcs that occur
during normal operation of motor control or
switching equipment. The enclosure is
constructed to prevent flammable gases or
vapors from entering the enclosure. Used in oil
refineries and natural gas plants. Do not decide
between NEMA Type 7 or NEMA Type 9 for
your customers. Let them tell you which
enclosure type will meet their requirements.
NEMA Type 9 Enclosure
Similar to NEMA Type 7 except the enclosure
protects against environmental (airborne) dust.
Used in grain elevators and flour milling plants.
Do not decide between NEMA Type 7 or NEMA
Type 9 for your customers. Let them tell you
which enclosure type will meet their
requirements.