IP11 vs IP35
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP11 and IP35 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 1 vs 3) and liquid protection (level 1 vs 5). IP11 is rated for > 50 mm — back of hand and vertically dripping water, while IP35 provides > 2.5 mm — tool / wire and water jets (6.3 mm nozzle).
Engineered to deliver protection against solid objects larger than 50 mm and protection against vertically falling drops of water. Dripping water shall have no harmful effects.. Classified as IEC 60529 ingress protection code IP11, it pairs solid level 1 with liquid level 1.
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)
IP11
1 — > 50 mm — Back of Hand
IP35
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP11
1 — Vertically Dripping Water
IP35
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP11
No
IP35
No
Water-jet resistant
IP11
No
IP35
Yes
Submersible
IP11
No
IP35
No
Outdoor suitable
IP11
No
IP35
Yes
The exact difference (IP11 vs IP35)
Solid protection
IP11
Level 1 — > 50 mm — Back of Hand
IP35
Level 3 — > 2.5 mm — Tool / Wire
IP11 provides "> 50 mm — Back of Hand" (level 1), while IP35 provides "> 2.5 mm — Tool / Wire" (level 3). IP35 is 2 levels higher.
Liquid protection
IP11
Level 1 — Vertically Dripping Water
IP35
Level 5 — Water Jets (6.3 mm nozzle)
IP11 handles 0.1 mm/min drip rate (Vertically Dripping Water), while IP35 handles 30 kPa (Water Jets (6.3 mm nozzle)). IP35 provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP35 offers higher overall protection than IP11. Choose IP35 for harsher environments; IP11 may suffice for milder conditions and can be more cost-effective.