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NEMA VS IP RATINgS CROSS REFERENCE

OKW enclosures are tested to the IP mark, International Protection Mark (IEC 60529), also known as Ingress Protection Mark, which categorizes the degree of protection provided by housings and enclosures against the intrusion by foreign bodies, including hands and fingers, dust, accidental contact, and water. Understanding the level of protection provided by the different IP ratings will help you choose the correct OKW enclosure for your application.

In North America the NEMA classification system is also commonly used, which is why we have provided this approximate guide.

Important Note: This cross reference is provided as a approximate guide only!

NEMA and IP ratings are not equivalent, the methods used to test the enclosures are not the same. It is important to note that while NEMA standards will meet or exceed IEC 60529 IP ratings, it does not work the other way round. IP ratings cannot be used to comply with a specific NEMA classification.

PROTECTION AGAINST SOLIDS AND LIQUIDS

NEMA 1

General purpose - indoor use.

IP 10

(1-) – Protected against solid objects up to 50 mm, e.g. accidental touch by hand.
(-0) – No protection against liquids.

NEMA 2

Drip-proof - indoor use.

IP 11

(1-) – Protected against solid objects up to 50 mm, e.g. accidental touch by hand.
(-1) – Protection against vertically falling drops of water, e.g. condensation.

NEMA 3

Dust tight, rain tight, sleet tight - outdoor use.

IP 54

(5-) – Protected against limited dust ingress, no harmful deposits.
(-4) – Protection against water sprayed from all directions, limited ingress permitted.

NEMA 3R

Rain tight, sleet resistant - outdoor use.

IP 14

(1-) – Protected against solid objects up to 50 mm, e.g. accidental touch by hand.
(-4) – Protection against water sprayed from all directions, limited ingress permitted.

NEMA 3S

Dust tight, rain tight, sleet tight - outdoor use.

IP 54

(5-) – Protected against limited dust ingress, no harmful deposits.
(-4) – Protection against water sprayed from all directions, limited ingress permitted.

NEMA 4

Water tight, dust tight, sleet resistant - indoor and outdoor use.

IP 66

(6-) – Totally protected against dust.
(-6) – Protection against strong jets of water from all directions, limited ingress permitted.
(View OKW IP 66 enclosures here >>)

NEMA 4X

Water tight, dust tight, corrosion resistant - indoor and outdoor use.

IP 66

(6-) – Totally protected against dust.
(-6) – Protection against strong jets of water from all directions, limited ingress permitted.
(View OKW IP 66 enclosures here >>)

NEMA 5

Dust tight, drip-proof - indoor use.

IP 52

(5-) – Protected against limited dust ingress, no harmful deposits.
(-2) – Protection against direct water sprays up to 15° from vertical.

NEMA 6

Occasionally submersible, water tight, sleet resistant - indoor and outdoor use.

IP 67

(6-) – Totally protected against dust.
(-7) – Protection against the effects of immersion at depths between 150 mm and 1000 mm.
(View OKW IP 67 enclosures here >>).

NEMA 6P

Water tight, sleet resistant with prolonged submersion - indoor and outdoor use.

IP 67

(6-) – Totally protected against dust.
(-7) – Protection against the effects of immersion at depths between 150 mm and 1000 mm.
(View OKW IP 67 enclosures here >>).

NEMA 12

Dust tight, drip tight - indoor use.

IP 52

(5-) – Protected against limited dust ingress, no harmful deposits.
(-2) – Protection against direct water sprays up to 15° from vertical.

NEMA 12K

Dust tight, drip tight, with knockouts - indoor use.

IP 52

(5-) – Protected against limited dust ingress, no harmful deposits.
(-2) – Protection against direct water sprays up to 15° from vertical.

NEMA 13

Oil tight and dust tight - indoor use.

IP 54

(5-) – Protected against limited dust ingress, no harmful deposits.
(-4) – Protection against water sprayed from all directions, limited ingress permitted.

MORE INFORMATION:

View OKW IP Rated Enclosures >>