IP60 vs IP51
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP60 and IP51 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 5) and liquid protection (level 0 vs 1). IP60 is rated for dust-tight and no protection, while IP51 provides dust-protected and vertically dripping water.
IP60 is dust-tight with no water protection. Used for indoor equipment in very dusty environments that stays completely dry — dust exclusion without any moisture tolerance.
With IP51, an enclosure receives dust-protected (limited ingress, no harmful deposit) 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 5 with second-digit (liquid) level 1.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP60
6 — Dust-Tight
IP51
5 — Dust-Protected
Liquid protection (second digit)
IP60
0 — No Protection
IP51
1 — Vertically Dripping Water
Dust-tight
IP60
Yes
IP51
Limited
Water-jet resistant
IP60
No
IP51
No
Submersible
IP60
No
IP51
No
Outdoor suitable
IP60
No
IP51
No
The exact difference (IP60 vs IP51)
Solid protection
IP60
Level 6 — Dust-Tight
IP51
Level 5 — Dust-Protected
IP60 provides "Dust-Tight" (level 6), while IP51 provides "Dust-Protected" (level 5). IP60 is 1 level higher.
Liquid protection
IP60
Level 0 — No Protection
IP51
Level 1 — Vertically Dripping Water
IP60 provides "No Protection" (level 0), while IP51 provides "Vertically Dripping Water" (level 1). IP51 is 1 level higher.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP60 and IP51 offer comparable overall protection; choose based on the specific protection dimension (dust vs. water) that matters most for your application.