IP35 vs IP63
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP35 and IP63 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 3 vs 6) and liquid protection (level 5 vs 3). IP35 is rated for > 2.5 mm — tool / wire and water jets (6.3 mm nozzle), while IP63 provides dust-tight and spraying water (up to 60°).
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.
The IP63 classification guarantees dust-tight (no ingress of dust) and protection against spraying water. Water sprayed at an angle up to 60° on either side of the vertical shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 6 with second-digit (liquid) level 3.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP35
3 — > 2.5 mm — Tool / Wire
IP63
6 — Dust-Tight
Liquid protection (second digit)
IP35
5 — Water Jets (6.3 mm nozzle)
IP63
3 — Spraying Water (up to 60°)
Dust-tight
IP35
No
IP63
Yes
Water-jet resistant
IP35
Yes
IP63
No
Submersible
IP35
No
IP63
No
Outdoor suitable
IP35
Yes
IP63
No
The exact difference (IP35 vs IP63)
Solid protection
IP35
Level 3 — > 2.5 mm — Tool / Wire
IP63
Level 6 — Dust-Tight
IP35 provides "> 2.5 mm — Tool / Wire" (level 3), while IP63 provides "Dust-Tight" (level 6). IP63 is 3 levels higher.
Liquid protection
IP35
Level 5 — Water Jets (6.3 mm nozzle)
IP63
Level 3 — Spraying Water (up to 60°)
IP35 handles 30 kPa (Water Jets (6.3 mm nozzle)), while IP63 handles 80 kPa (tube) / 50 kPa (nozzle) (Spraying Water (up to 60°)). IP35 provides 2 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP63 offers higher overall protection than IP35. Choose IP63 for harsher environments; IP35 may suffice for milder conditions and can be more cost-effective.