IP24 vs IP28
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP24 and IP28 are both IEC 60529 ingress protection codes, but they differ in liquid protection (level 4 vs 8). IP24 is rated for > 12.5 mm — finger and splashing water (all directions), while IP28 provides > 12.5 mm — finger and continuous immersion (manufacturer-specified).
With IP24, an enclosure receives protection against solid objects larger than 12.5 mm and protection against splashing water. Water splashed against the enclosure from any direction shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 2 with second-digit (liquid) level 4.
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)
IP24
2 — > 12.5 mm — Finger
IP28
2 — > 12.5 mm — Finger
Liquid protection (second digit)
IP24
4 — Splashing Water (all directions)
IP28
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP24
No
IP28
No
Water-jet resistant
IP24
No
IP28
Yes
Submersible
IP24
No
IP28
Yes
Outdoor suitable
IP24
Yes
IP28
Yes
The exact difference (IP24 vs IP28)
Solid protection
IP24
Level 2 — > 12.5 mm — Finger
IP28
Level 2 — > 12.5 mm — Finger
Both IP24 and IP28 share the same solid protection: > 12.5 mm — Finger.
Liquid protection
IP24
Level 4 — Splashing Water (all directions)
IP28
Level 8 — Continuous Immersion (manufacturer-specified)
IP24 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.
Recommendation
IP28 offers higher overall protection than IP24. Choose IP28 for harsher environments; IP24 may suffice for milder conditions and can be more cost-effective.