IP16 vs IP6X
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP16 and IP6X are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 1 vs 6) and liquid protection (level 6 vs 0). IP16 is rated for > 50 mm — back of hand and powerful water jets (12.5 mm nozzle), while IP6X provides dust-tight and no protection.
IP16 is an ingress protection code that ensures protection against solid objects larger than 50 mm and protection against powerful water jets. Water projected in powerful jets by a 12.5 mm nozzle against the enclosure from any direction shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 1 with second-digit (liquid) level 6.
IP6X is fully dust-tight—no ingress of dust whatsoever—with water protection not specified. The highest solid-protection rating, used where complete dust exclusion is critical.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP16
1 — > 50 mm — Back of Hand
IP6X
6 — Dust-Tight
Liquid protection (second digit)
IP16
6 — Powerful Water Jets (12.5 mm nozzle)
IP6X
0 — No Protection
Dust-tight
IP16
No
IP6X
Yes
Water-jet resistant
IP16
Yes
IP6X
No
Submersible
IP16
No
IP6X
No
Outdoor suitable
IP16
Yes
IP6X
No
The exact difference (IP16 vs IP6X)
Solid protection
IP16
Level 1 — > 50 mm — Back of Hand
IP6X
Level 6 — Dust-Tight
IP16 provides "> 50 mm — Back of Hand" (level 1), while IP6X provides "Dust-Tight" (level 6). IP6X is 5 levels higher.
Liquid protection
IP16
Level 6 — Powerful Water Jets (12.5 mm nozzle)
IP6X
Level 0 — No Protection
IP16 provides "Powerful Water Jets (12.5 mm nozzle)" (level 6), while IP6X provides "No Protection" (level 0). IP16 is 6 levels higher.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP16 offers higher overall protection than IP6X. Choose IP16 for harsher environments; IP6X may suffice for milder conditions and can be more cost-effective.