IP01 vs IP31
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP01 and IP31 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 3). IP01 is rated for no protection and vertically dripping water, while IP31 provides > 2.5 mm — tool / wire and vertically dripping water.
IP01 provides no protection against solid objects and protection against vertically falling drops of water. Dripping water shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 0 with second-digit (liquid) level 1.
The IP31 rating offers protection against solid objects larger than 2.5 mm and protection against vertically falling drops of water. Dripping water shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 3 with second-digit (liquid) level 1.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP01
0 — No Protection
IP31
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP01
1 — Vertically Dripping Water
IP31
1 — Vertically Dripping Water
Dust-tight
IP01
No
IP31
No
Water-jet resistant
IP01
No
IP31
No
Submersible
IP01
No
IP31
No
Outdoor suitable
IP01
No
IP31
No
The exact difference (IP01 vs IP31)
Solid protection
IP01
Level 0 — No Protection
IP31
Level 3 — > 2.5 mm — Tool / Wire
IP01 provides "No Protection" (level 0), while IP31 provides "> 2.5 mm — Tool / Wire" (level 3). IP31 is 3 levels higher.
Liquid protection
IP01
Level 1 — Vertically Dripping Water
IP31
Level 1 — Vertically Dripping Water
Both IP01 and IP31 share the same liquid protection: Vertically Dripping Water.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP31 offers higher overall protection than IP01. Choose IP31 for harsher environments; IP01 may suffice for milder conditions and can be more cost-effective.