NEMA Enclosure Types

Table A-1
CONVERSION OF NEMA ENCLOSURE TYPE RATINGS
TO IEC 60529 ENCLOSURE CLASSIFICATION DESIGNATIONS (IP)
(
Cannot be Used to Convert IEC Classification Designations to NEMA Type Ratings)
IP
First Character NEMA Enclosure Type
IP
Second Character
1 2
3, 3X,
3S, 3SX
3R,
3RX 4, 4X 5 6 6P
12,
12K, 13
IP0_ IP_0
IP1_ IP_1
IP2_ IP_2
IP3_ IP_3
IP4_ IP_4
IP5_ IP_5
IP6_ IP_6
IP_7
IP_8
A B A B A B A B A B A B A B A B A B
A = A shaded block in the “A” column indicates that the NEMA Enclosure Type exceeds the requirements for the respective IEC 60529 IP First
Character Designation. The IP First Character Designation is the protection against access to hazardous parts and solid foreign objects.
B = A shaded block in the “B” column indicates that the NEMA Enclosure Type exceeds the requirements for the respective IEC 60529 IP Second
Character Designation. The IP Second Character Designation is the protection against the ingress of water.
EXAMPLE OF TABLE USE
An IEC IP 45 Enclosure Rating is specified. What NEMA Type Enclosures meet and exceed the IP 45 rating?
National Electrical Manufacturers Association Approved by NEMA Enclosures Section
1300 N. 17
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Street, Suite 1752 Nov 2005
Rosslyn, VA 22209