IP33 vs IP52
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP33 and IP52 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 3 vs 5) and liquid protection (level 3 vs 2). IP33 is rated for > 2.5 mm — tool / wire and spraying water (up to 60°), while IP52 provides dust-protected and dripping water at 15° tilt.
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.
IP52 is an ingress protection code that ensures dust-protected (limited ingress, no harmful deposit) and protection against vertically falling drops of water when the enclosure is tilted up to 15° from its normal position.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 5 with second-digit (liquid) level 2.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP33
3 — > 2.5 mm — Tool / Wire
IP52
5 — Dust-Protected
Liquid protection (second digit)
IP33
3 — Spraying Water (up to 60°)
IP52
2 — Dripping Water at 15° Tilt
Dust-tight
IP33
No
IP52
Limited
Water-jet resistant
IP33
No
IP52
No
Submersible
IP33
No
IP52
No
Outdoor suitable
IP33
No
IP52
No
The exact difference (IP33 vs IP52)
Solid protection
IP33
Level 3 — > 2.5 mm — Tool / Wire
IP52
Level 5 — Dust-Protected
IP33 provides "> 2.5 mm — Tool / Wire" (level 3), while IP52 provides "Dust-Protected" (level 5). IP52 is 2 levels higher.
Liquid protection
IP33
Level 3 — Spraying Water (up to 60°)
IP52
Level 2 — Dripping Water at 15° Tilt
IP33 handles 80 kPa (tube) / 50 kPa (nozzle) (Spraying Water (up to 60°)), while IP52 handles 0.3 mm/min drip rate (Dripping Water at 15° Tilt). IP33 provides 1 level more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP52 offers higher overall protection than IP33. Choose IP52 for harsher environments; IP33 may suffice for milder conditions and can be more cost-effective.