IP33 vs IP35
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP33 and IP35 are both IEC 60529 ingress protection codes, but they differ in liquid protection (level 3 vs 5). IP33 is rated for > 2.5 mm — tool / wire and spraying water (up to 60°), while IP35 provides > 2.5 mm — tool / wire and water jets (6.3 mm nozzle).
IP33 protects against tools and 2.5 mm objects plus spraying water up to 60° from vertical. A practical rating for indoor equipment subject to light spray or for sheltered outdoor fixtures.
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)
IP33
3 — > 2.5 mm — Tool / Wire
IP35
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP33
3 — Spraying Water (up to 60°)
IP35
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP33
No
IP35
No
Water-jet resistant
IP33
No
IP35
Yes
Submersible
IP33
No
IP35
No
Outdoor suitable
IP33
No
IP35
Yes
The exact difference (IP33 vs IP35)
Solid protection
IP33
Level 3 — > 2.5 mm — Tool / Wire
IP35
Level 3 — > 2.5 mm — Tool / Wire
Both IP33 and IP35 share the same solid protection: > 2.5 mm — Tool / Wire.
Liquid protection
IP33
Level 3 — Spraying Water (up to 60°)
IP35
Level 5 — Water Jets (6.3 mm nozzle)
IP33 handles 80 kPa (tube) / 50 kPa (nozzle) (Spraying Water (up to 60°)), while IP35 handles 30 kPa (Water Jets (6.3 mm nozzle)). IP35 provides 2 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP35 offers higher overall protection than IP33. Choose IP35 for harsher environments; IP33 may suffice for milder conditions and can be more cost-effective.