IP34 vs IP68
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP34 and IP68 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 3 vs 6) and liquid protection (level 4 vs 8). IP34 is rated for > 2.5 mm — tool / wire and splashing water (all directions), while IP68 provides dust-tight and continuous immersion (manufacturer-specified).
IP34 is an ingress protection code that ensures protection against solid objects larger than 2.5 mm and protection against splashing water. Water splashed against the enclosure from any direction shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 3 with second-digit (liquid) level 4.
IP68 is dust-tight and protects against continuous immersion in water under conditions specified by the manufacturer (typically deeper than 1 meter for prolonged periods). The standard for submersible and marine equipment.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP34
3 — > 2.5 mm — Tool / Wire
IP68
6 — Dust-Tight
Liquid protection (second digit)
IP34
4 — Splashing Water (all directions)
IP68
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP34
No
IP68
Yes
Water-jet resistant
IP34
No
IP68
Yes
Submersible
IP34
No
IP68
Yes
Outdoor suitable
IP34
Yes
IP68
Yes
The exact difference (IP34 vs IP68)
Solid protection
IP34
Level 3 — > 2.5 mm — Tool / Wire
IP68
Level 6 — Dust-Tight
IP34 provides "> 2.5 mm — Tool / Wire" (level 3), while IP68 provides "Dust-Tight" (level 6). IP68 is 3 levels higher.
Liquid protection
IP34
Level 4 — Splashing Water (all directions)
IP68
Level 8 — Continuous Immersion (manufacturer-specified)
IP34 handles 50–100 kPa (Splashing Water (all directions)), while IP68 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP68 provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP68 offers higher overall protection than IP34. Choose IP68 for harsher environments; IP34 may suffice for milder conditions and can be more cost-effective.