IP64 vs IP28
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP64 and IP28 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 2) and liquid protection (level 4 vs 8). IP64 is rated for dust-tight and splashing water (all directions), while IP28 provides > 12.5 mm — finger and continuous immersion (manufacturer-specified).
IP64 is dust-tight and resists splashing water from any direction. A solid outdoor-covered rating combining complete dust exclusion with splash tolerance, sitting between IP65 (jets) and IP54 (dust-protected).
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)
IP64
6 — Dust-Tight
IP28
2 — > 12.5 mm — Finger
Liquid protection (second digit)
IP64
4 — Splashing Water (all directions)
IP28
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP64
Yes
IP28
No
Water-jet resistant
IP64
No
IP28
Yes
Submersible
IP64
No
IP28
Yes
Outdoor suitable
IP64
Yes
IP28
Yes
The exact difference (IP64 vs IP28)
Solid protection
IP64
Level 6 — Dust-Tight
IP28
Level 2 — > 12.5 mm — Finger
IP64 provides "Dust-Tight" (level 6), while IP28 provides "> 12.5 mm — Finger" (level 2). IP64 is 4 levels higher.
Liquid protection
IP64
Level 4 — Splashing Water (all directions)
IP28
Level 8 — Continuous Immersion (manufacturer-specified)
IP64 handles 50–100 kPa (Splashing Water (all directions)), while IP28 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP28 provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP64 and IP28 offer comparable overall protection; choose based on the specific protection dimension (dust vs. water) that matters most for your application.