IP07 vs IP18
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP07 and IP18 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 1) and liquid protection (level 7 vs 8). IP07 is rated for no protection and temporary immersion (up to 1 m), while IP18 provides > 50 mm — back of hand and continuous immersion (manufacturer-specified).
IP07 is an ingress protection code that ensures no protection against solid objects and protection against the effects of temporary immersion in water. Ingress of water in quantities causing harmful effects shall not be possible.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 0 with second-digit (liquid) level 7.
The IP18 classification guarantees protection against solid objects larger than 50 mm and protection against the effects of continuous immersion in water under conditions specified by the manufacturer.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 1 with second-digit (liquid) level 8.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP07
0 — No Protection
IP18
1 — > 50 mm — Back of Hand
Liquid protection (second digit)
IP07
7 — Temporary Immersion (up to 1 m)
IP18
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP07
No
IP18
No
Water-jet resistant
IP07
Yes
IP18
Yes
Submersible
IP07
Yes
IP18
Yes
Outdoor suitable
IP07
Yes
IP18
Yes
The exact difference (IP07 vs IP18)
Solid protection
IP07
Level 0 — No Protection
IP18
Level 1 — > 50 mm — Back of Hand
IP07 provides "No Protection" (level 0), while IP18 provides "> 50 mm — Back of Hand" (level 1). IP18 is 1 level higher.
Liquid protection
IP07
Level 7 — Temporary Immersion (up to 1 m)
IP18
Level 8 — Continuous Immersion (manufacturer-specified)
IP07 handles Hydrostatic ~10 kPa at 1 m (Temporary Immersion (up to 1 m)), while IP18 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP18 provides 1 level more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP18 offers higher overall protection than IP07. Choose IP18 for harsher environments; IP07 may suffice for milder conditions and can be more cost-effective.