IP65 vs IP59K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP65 and IP59K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 5) and liquid protection (level 5 vs 9K). IP65 is rated for dust-tight and water jets (6.3 mm nozzle), while IP59K provides dust-protected and high-pressure, high-temp water jets.
IP65 is dust-tight and resists low-pressure water jets (6.3 mm nozzle, 30 kPa). It is the most common standard for fully exposed outdoor electronics such as lighting, cameras, and EV chargers.
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)
IP65
6 — Dust-Tight
IP59K
5 — Dust-Protected
Liquid protection (second digit)
IP65
5 — Water Jets (6.3 mm nozzle)
IP59K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP65
Yes
IP59K
Limited
Water-jet resistant
IP65
Yes
IP59K
Yes
Submersible
IP65
No
IP59K
Yes
Outdoor suitable
IP65
Yes
IP59K
Yes
The exact difference (IP65 vs IP59K)
Solid protection
IP65
Level 6 — Dust-Tight
IP59K
Level 5 — Dust-Protected
IP65 provides "Dust-Tight" (level 6), while IP59K provides "Dust-Protected" (level 5). IP65 is 1 level higher.
Liquid protection
IP65
Level 5 — Water Jets (6.3 mm nozzle)
IP59K
Level 9 — High-Pressure, High-Temp Water Jets
IP65 handles 30 kPa (Water Jets (6.3 mm nozzle)), while IP59K handles 8–10 MPa (High-Pressure, High-Temp Water Jets). IP59K provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP59K offers higher overall protection than IP65. Choose IP59K for harsher environments; IP65 may suffice for milder conditions and can be more cost-effective.