IP28 vs IP35
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP28 and IP35 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 2 vs 3) and liquid protection (level 8 vs 5). IP28 is rated for > 12.5 mm — finger and continuous immersion (manufacturer-specified), while IP35 provides > 2.5 mm — tool / wire and water jets (6.3 mm nozzle).
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.
Built to withstand protection against solid objects larger than 2.5 mm and protection against water jets. Water projected by a 6.3 mm nozzle against the enclosure from any direction shall have no harmful effects.. Classified as IEC 60529 ingress protection code IP35, it pairs solid level 3 with liquid level 5.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP28
2 — > 12.5 mm — Finger
IP35
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP28
8 — Continuous Immersion (manufacturer-specified)
IP35
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP28
No
IP35
No
Water-jet resistant
IP28
Yes
IP35
Yes
Submersible
IP28
Yes
IP35
No
Outdoor suitable
IP28
Yes
IP35
Yes
The exact difference (IP28 vs IP35)
Solid protection
IP28
Level 2 — > 12.5 mm — Finger
IP35
Level 3 — > 2.5 mm — Tool / Wire
IP28 provides "> 12.5 mm — Finger" (level 2), while IP35 provides "> 2.5 mm — Tool / Wire" (level 3). IP35 is 1 level higher.
Liquid protection
IP28
Level 8 — Continuous Immersion (manufacturer-specified)
IP35
Level 5 — Water Jets (6.3 mm nozzle)
IP28 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)), while IP35 handles 30 kPa (Water Jets (6.3 mm nozzle)). IP28 provides 3 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP28 offers higher overall protection than IP35. Choose IP28 for harsher environments; IP35 may suffice for milder conditions and can be more cost-effective.