IP11 vs IP56
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP11 and IP56 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 1 vs 5) and liquid protection (level 1 vs 6). IP11 is rated for > 50 mm — back of hand and vertically dripping water, while IP56 provides dust-protected and powerful water jets (12.5 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.
IP56 is dust-protected and resists powerful water jets (12.5 mm nozzle, 100 kPa). Suited to outdoor equipment subjected to heavy rain or hose-directed water.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP11
1 — > 50 mm — Back of Hand
IP56
5 — Dust-Protected
Liquid protection (second digit)
IP11
1 — Vertically Dripping Water
IP56
6 — Powerful Water Jets (12.5 mm nozzle)
Dust-tight
IP11
No
IP56
Limited
Water-jet resistant
IP11
No
IP56
Yes
Submersible
IP11
No
IP56
No
Outdoor suitable
IP11
No
IP56
Yes
The exact difference (IP11 vs IP56)
Solid protection
IP11
Level 1 — > 50 mm — Back of Hand
IP56
Level 5 — Dust-Protected
IP11 provides "> 50 mm — Back of Hand" (level 1), while IP56 provides "Dust-Protected" (level 5). IP56 is 4 levels higher.
Liquid protection
IP11
Level 1 — Vertically Dripping Water
IP56
Level 6 — Powerful Water Jets (12.5 mm nozzle)
IP11 handles 0.1 mm/min drip rate (Vertically Dripping Water), while IP56 handles 100 kPa (Powerful Water Jets (12.5 mm nozzle)). IP56 provides 5 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP56 offers higher overall protection than IP11. Choose IP56 for harsher environments; IP11 may suffice for milder conditions and can be more cost-effective.