Engineering Guide CDA3000
A-43
Appendix A Formula bank
DE
EN
1
2
3
4
5
6
7
A
A.3.2 Protection to
EEMAC and
Nema
Types of protection of electrical equipment for USA and Canada
conforming to IEC 529/EN 60529, VDE 0470 Part 1
The IP protection types quoted represent a rough comparison. A detailed
comparison is not possible, because protection tests and assessment cri-
teria differ.
Marking of the housing and the protection
type
Marking of the
housing and the
protection type to
CSA-C22.1
(Canadian Electrical
Code)
CSA-C22.2 No. 94
Comparable IP
protection to IEC
529 / DIN 40050
to NEC NFPA 70
(National
Electrical Code)
to UL 508 to
NEMA No.
250-1985
to NEMA ICS6-19831)
to EEMAC E 14-22)
Housing type 1
Housing type 1
General use
Housing 1
Housing for general
use
IP 20
Housing type 2
Drip-tight
Housing type 2
Drip-proof
Housing 2
Drip-proof housing
IP 22
Housing type 3
dust-tight, rain-
tight
Housing type 3
Dust-tight, rain-tight, resist-
ant to sleet and ice
Housing 3
Weather-proof housing
IP 54
Housing type 3 R
Rain-proof
Housing type 3 R
Rain-proof, resistant to sleet
and ice
Housing type 3 S
Dust-tight, rain-
tight
Housing type 3 S
Dust-tight, rain-tight, resist-
ant to sleet and ice
Housing type 4
Rain-tight, water-
tight
Housing type 4
Dust-tight, water-tight
Housing 4
Water-tight housing
IP 65
Housing type 4 X
Rain-tight, water-
tight, corrosion-
resistant
Housing type 4 X
Dust-tight, water-tight, cor-
rosion-resistant
Housing type 6
Rain-tight
Housing type 6
Dust-tight, water-tight, sub-
mersible, resistant to sleet
and ice
Table 7.30 Protection types of electrical equipment for USA and Canada
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