IP67 vs IP59K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP67 and IP59K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 5) and liquid protection (level 7 vs 9K). IP67 is rated for dust-tight and temporary immersion (up to 1 m), while IP59K provides dust-protected and high-pressure, high-temp water jets.
IP67 is dust-tight and withstands temporary immersion in water up to 1 meter for 30 minutes. The go-to rating for outdoor and rugged devices that may be briefly submerged.
The IP59K classification guarantees dust-protected (limited ingress, no harmful deposit) and resistance to high-pressure (8–10 MPa), high-temperature (80 °C) water jets. It is an IEC 60529 ingress protection code combining first-digit (solid) level 5 with second-digit (liquid) level 9K.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP67
6 — Dust-Tight
IP59K
5 — Dust-Protected
Liquid protection (second digit)
IP67
7 — Temporary Immersion (up to 1 m)
IP59K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP67
Yes
IP59K
Limited
Water-jet resistant
IP67
Yes
IP59K
Yes
Submersible
IP67
Yes
IP59K
Yes
Outdoor suitable
IP67
Yes
IP59K
Yes
The exact difference (IP67 vs IP59K)
Solid protection
IP67
Level 6 — Dust-Tight
IP59K
Level 5 — Dust-Protected
IP67 provides "Dust-Tight" (level 6), while IP59K provides "Dust-Protected" (level 5). IP67 is 1 level higher.
Liquid protection
IP67
Level 7 — Temporary Immersion (up to 1 m)
IP59K
Level 9 — High-Pressure, High-Temp Water Jets
IP67 handles Hydrostatic ~10 kPa at 1 m (Temporary Immersion (up to 1 m)), while IP59K handles 8–10 MPa (High-Pressure, High-Temp Water Jets). IP59K provides 2 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP59K offers higher overall protection than IP67. Choose IP59K for harsher environments; IP67 may suffice for milder conditions and can be more cost-effective.