Meltric Full-Line Catalog
WATERTIGHTNESS/INGRESS PROTECTION (NEMA AND IP RATINGS)
Environmental Ratings for MELTRIC Devices
Product
Type IP (plug+receptacle)
IP (receptacle alone)
DSN
4X
69/69K
69/69K
DS +
3R
–
–
DXN
–
66/67
66/67
DXN25c/37c
–
66/67
66/67
DX
–
65
65
DN
–
54
55
PF/PFQ
–
66/67
66/67
DR +
3R
–
–
PN
–
66/67
66/67
Most MELTRIC products achieve rated watertightness as soon as the plug is fully inserted into the receptacle.
PXN12c
–
65/66
65/66
SP
–
66/67
66/67
SPeX
–
65/66
65/66
DXA1
-
66/67
66/67
+ Additional watertightness is available on DS and DR devices, see pg 236.
Environmental Ratings Explained NEMA/UL/CSA Enclosure Types (UL50)
Enclosure Type
Intended Use and Description
1
Indoor use primarily to provide a degree of protection against limited amounts of falling dirt.
2
Indoor use primarily to provide a degree of protection against limited amounts of waste and falling dirt.
3, 3R, 3S
Outdoor use primarily to provide a degree of protection against rain, sleet, and damage from external ice formation
Indoor or outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, hose-directed water, and damage from external ice formation.
4, 4X
12
Indoor use primarily to provide a degree of protection against circulating dust, falling dirt and dripping non-corrosive liquids.
IP Ratings (IEC/EN 60529)
First Digit Protection against the ingress of solid foreign objects and access to hazardous parts
Second Digit Protection against the ingress of water with harmful effects
0
0
–
No protection
No protection
1
1
50mm
Back of hand
Vertically dripping water (condensation)
2
2
12.5mm
Finger
Dripping water at 15°
3
3
2.5mm
Tool
Spraying water at 60° (rain)
4
4
1mm
Wire
Splashing water from any direction
5
5
–
Against Dust
Jetting water from any direction
6
6
–
Dust-tight
Powerful jetting water from any direction
–
7
–
Temporary submersion
–
9(K)
–
High pressure, high temperature jey sprays
25 7
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