IP39K vs IP65
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP39K and IP65 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 3 vs 6) and liquid protection (level 9K vs 5). IP39K is rated for > 2.5 mm — tool / wire and high-pressure, high-temp water jets, while IP65 provides dust-tight and water jets (6.3 mm nozzle).
IP39K is an ingress protection code that ensures protection against solid objects larger than 2.5 mm 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 3 with second-digit (liquid) level 9K.
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.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP39K
3 — > 2.5 mm — Tool / Wire
IP65
6 — Dust-Tight
Liquid protection (second digit)
IP39K
9 — High-Pressure, High-Temp Water Jets
IP65
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP39K
No
IP65
Yes
Water-jet resistant
IP39K
Yes
IP65
Yes
Submersible
IP39K
Yes
IP65
No
Outdoor suitable
IP39K
Yes
IP65
Yes
The exact difference (IP39K vs IP65)
Solid protection
IP39K
Level 3 — > 2.5 mm — Tool / Wire
IP65
Level 6 — Dust-Tight
IP39K provides "> 2.5 mm — Tool / Wire" (level 3), while IP65 provides "Dust-Tight" (level 6). IP65 is 3 levels higher.
Liquid protection
IP39K
Level 9 — High-Pressure, High-Temp Water Jets
IP65
Level 5 — Water Jets (6.3 mm nozzle)
IP39K handles 8–10 MPa (High-Pressure, High-Temp Water Jets), while IP65 handles 30 kPa (Water Jets (6.3 mm nozzle)). IP39K provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP39K offers higher overall protection than IP65. Choose IP39K for harsher environments; IP65 may suffice for milder conditions and can be more cost-effective.