IP56 vs IP30
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP56 and IP30 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 5 vs 3) and liquid protection (level 6 vs 0). IP56 is rated for dust-protected and powerful water jets (12.5 mm nozzle), while IP30 provides > 2.5 mm — tool / wire and no protection.
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.
IP30 protects against tools and 2.5 mm solid objects but offers no water protection. A basic indoor rating for equipment in dry, low-dust environments where only tool-access protection is required.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP56
5 — Dust-Protected
IP30
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP56
6 — Powerful Water Jets (12.5 mm nozzle)
IP30
0 — No Protection
Dust-tight
IP56
Limited
IP30
No
Water-jet resistant
IP56
Yes
IP30
No
Submersible
IP56
No
IP30
No
Outdoor suitable
IP56
Yes
IP30
No
The exact difference (IP56 vs IP30)
Solid protection
IP56
Level 5 — Dust-Protected
IP30
Level 3 — > 2.5 mm — Tool / Wire
IP56 provides "Dust-Protected" (level 5), while IP30 provides "> 2.5 mm — Tool / Wire" (level 3). IP56 is 2 levels higher.
Liquid protection
IP56
Level 6 — Powerful Water Jets (12.5 mm nozzle)
IP30
Level 0 — No Protection
IP56 provides "Powerful Water Jets (12.5 mm nozzle)" (level 6), while IP30 provides "No Protection" (level 0). IP56 is 6 levels higher.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP56 offers higher overall protection than IP30. Choose IP56 for harsher environments; IP30 may suffice for milder conditions and can be more cost-effective.