IP56 vs IP32
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP56 and IP32 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 5 vs 3) and liquid protection (level 6 vs 2). IP56 is rated for dust-protected and powerful water jets (12.5 mm nozzle), while IP32 provides > 2.5 mm — tool / wire and dripping water at 15° tilt.
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.
Under IEC 60529, IP32 specifies protection against solid objects larger than 2.5 mm 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 3 with second-digit (liquid) level 2.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP56
5 — Dust-Protected
IP32
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP56
6 — Powerful Water Jets (12.5 mm nozzle)
IP32
2 — Dripping Water at 15° Tilt
Dust-tight
IP56
Limited
IP32
No
Water-jet resistant
IP56
Yes
IP32
No
Submersible
IP56
No
IP32
No
Outdoor suitable
IP56
Yes
IP32
No
The exact difference (IP56 vs IP32)
Solid protection
IP56
Level 5 — Dust-Protected
IP32
Level 3 — > 2.5 mm — Tool / Wire
IP56 provides "Dust-Protected" (level 5), while IP32 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)
IP32
Level 2 — Dripping Water at 15° Tilt
IP56 handles 100 kPa (Powerful Water Jets (12.5 mm nozzle)), while IP32 handles 0.3 mm/min drip rate (Dripping Water at 15° Tilt). IP56 provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP56 offers higher overall protection than IP32. Choose IP56 for harsher environments; IP32 may suffice for milder conditions and can be more cost-effective.