24 | Danfoss Drives · DKDD.PB.551.A1.02
NEMA 250 is a product standard for enclosure design and
performance.
NEMA Protection against solid objects Approx. IP equivalent
1 Indoor, protection from contact. IP 23
2
Indoor, limited protection from
dirt and water.
IP 30
3
Outdoor, some protection from rain,
sleet, windblown dust and ice.
IP 64
3R
Outdoor, some protection from rain,
sleet and ice.
IP 32
4
Indoor or outdoor, some protection from
windblown dust, rain, splashing water,
hose-directed water and ice.
IP 66
4X
Indoor or outdoor, some protection
from corrosion, windblown dust, rain,
splashing water, hose-directed water
and ice.
IP 66
6
Indoor or outdoor, some protection from
ice, hose-directed water, entry of water
when submerged at limited depth.
IP 67
12
Indoor, protection from dust, falling dirt
and dripping non-corrosive liquids.
IP 55
13
Indoor, protection from dust, spraying
water, oil and non-corrosive liquids.
IP 65
Warning:
Conversion from NEMA to IEC (IP) degrees of enclosure not to be
used for converting from IEC to NEMA.
Please refer to NEMA publication 250, 2003.
NEMA ratings
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