IP05 vs IP33
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP05 and IP33 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 3) and liquid protection (level 5 vs 3). IP05 is rated for no protection and water jets (6.3 mm nozzle), while IP33 provides > 2.5 mm — tool / wire and spraying water (up to 60°).
Under IEC 60529, IP05 specifies no protection against solid objects and protection against water jets. Water projected by a 6.3 mm nozzle against the enclosure from any direction shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 0 with second-digit (liquid) level 5.
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.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP05
0 — No Protection
IP33
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP05
5 — Water Jets (6.3 mm nozzle)
IP33
3 — Spraying Water (up to 60°)
Dust-tight
IP05
No
IP33
No
Water-jet resistant
IP05
Yes
IP33
No
Submersible
IP05
No
IP33
No
Outdoor suitable
IP05
Yes
IP33
No
The exact difference (IP05 vs IP33)
Solid protection
IP05
Level 0 — No Protection
IP33
Level 3 — > 2.5 mm — Tool / Wire
IP05 provides "No Protection" (level 0), while IP33 provides "> 2.5 mm — Tool / Wire" (level 3). IP33 is 3 levels higher.
Liquid protection
IP05
Level 5 — Water Jets (6.3 mm nozzle)
IP33
Level 3 — Spraying Water (up to 60°)
IP05 handles 30 kPa (Water Jets (6.3 mm nozzle)), while IP33 handles 80 kPa (tube) / 50 kPa (nozzle) (Spraying Water (up to 60°)). IP05 provides 2 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP33 offers higher overall protection than IP05. Choose IP33 for harsher environments; IP05 may suffice for milder conditions and can be more cost-effective.