IP67 vs IP28
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP67 and IP28 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 2) and liquid protection (level 7 vs 8). IP67 is rated for dust-tight and temporary immersion (up to 1 m), while IP28 provides > 12.5 mm — finger and continuous immersion (manufacturer-specified).
IP67 is dust-tight and withstands temporary immersion in water up to 1 meter for 30 minutes. The go-to rating for outdoor and rugged devices that may be briefly submerged.
Specified under IEC 60529, IP28 denotes protection against solid objects larger than 12.5 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 2 with second-digit (liquid) level 8.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP67
6 — Dust-Tight
IP28
2 — > 12.5 mm — Finger
Liquid protection (second digit)
IP67
7 — Temporary Immersion (up to 1 m)
IP28
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP67
Yes
IP28
No
Water-jet resistant
IP67
Yes
IP28
Yes
Submersible
IP67
Yes
IP28
Yes
Outdoor suitable
IP67
Yes
IP28
Yes
The exact difference (IP67 vs IP28)
Solid protection
IP67
Level 6 — Dust-Tight
IP28
Level 2 — > 12.5 mm — Finger
IP67 provides "Dust-Tight" (level 6), while IP28 provides "> 12.5 mm — Finger" (level 2). IP67 is 4 levels higher.
Liquid protection
IP67
Level 7 — Temporary Immersion (up to 1 m)
IP28
Level 8 — Continuous Immersion (manufacturer-specified)
IP67 handles Hydrostatic ~10 kPa at 1 m (Temporary Immersion (up to 1 m)), while IP28 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP28 provides 1 level more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP67 offers higher overall protection than IP28. Choose IP67 for harsher environments; IP28 may suffice for milder conditions and can be more cost-effective.