UFC 3 -430-11
14 February 2001
Table 3-1. Enclosure Ratings
TYPE
LOCATION
PROTECTION AGAINST OR USE
1
Indoors
Dirt
2
Indoors
Same as above plus splashing water
3
Outdoors
Dust, rain
3R
Outdoors
Rain
3S
Outdoors
Dust, rain, sleet
4
Outdoors
Dust, rain, sleet, hosing down with
water or indoors
4X
Outdoors
Same as above plus corrosion
resistant or indoors
5
Indoors
Dirt, dust
6
Outdoors
Dust, rain, sleet, hosing down with
water, or indoors te mporary
submersion in water
6P
Outdoors
Same as above plus corrosion
resistant or indoors and prolonged
submersion in water
7
Indoors
Hazardous locations. Available for
Class I, Groups A, B, C, and D
8
Indoors
Same as above except arcing
contacts immersed in oil
9
Indoors
Hazardous locations. Available for
Class II, Groups E and G
10
Indoors
Hazardous locations. Non-
ventilated. Meets Mine Safety and
Health Administration requirements
11
Indoors
Dirt, splashing water, corrosion
resistant Indoors Dirt, dust,
splashing water, dripping non-
corrosive liquids
12K
Indoors
Same as above except with
knockouts. No protection at
knockouts.
13
Indoors
Dirt, splashing water, oil, or coolant.
3-4
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