Nema Ratings - Danfoss VLT MCD 500 Pocket Manual

NEMA ratings

NEMA 250 is a product standard for enclosure design and
performance.
NEMA Protection against solid objects
1 Indoor, protection from contact.
Indoor, limited protection from
2
dirt and water.
Outdoor, some protection from rain,
3
sleet, windblown dust and ice.
Outdoor, some protection from rain,
3R
sleet and ice.
Indoor or outdoor, some protection from
4 windblown dust, rain, splashing water,
hose-directed water and ice.
Indoor or outdoor, some protection
from corrosion, windblown dust, rain,
4X
splashing water, hose-directed water
and ice.
Indoor or outdoor, some protection from
6 ice, hose-directed water, entry of water
when submerged at limited depth.
Indoor, protection from dust, falling dirt
12
and dripping non-corrosive liquids.
Indoor, protection from dust, spraying
13
water, oil and non-corrosive liquids.
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.
24 | Danfoss Drives · DKDD.PB.551.A1.02
Approx. IP equivalent
IP 23
IP 30
IP 64
IP 32
IP 66
IP 66
IP 67
IP 55
IP 65