IP69K vs IP39K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP69K and IP39K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 6 vs 3). IP69K is rated for dust-tight and high-pressure, high-temp water jets, while IP39K provides > 2.5 mm — tool / wire and high-pressure, high-temp water jets.
IP69K is dust-tight and resists high-pressure (8–10 MPa), high-temperature (80 °C) water jets. The highest IP rating, required for food, beverage, and pharmaceutical washdown environments.
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.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP69K
6 — Dust-Tight
IP39K
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP69K
9 — High-Pressure, High-Temp Water Jets
IP39K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP69K
Yes
IP39K
No
Water-jet resistant
IP69K
Yes
IP39K
Yes
Submersible
IP69K
Yes
IP39K
Yes
Outdoor suitable
IP69K
Yes
IP39K
Yes
The exact difference (IP69K vs IP39K)
Solid protection
IP69K
Level 6 — Dust-Tight
IP39K
Level 3 — > 2.5 mm — Tool / Wire
IP69K provides "Dust-Tight" (level 6), while IP39K provides "> 2.5 mm — Tool / Wire" (level 3). IP69K is 3 levels higher.
Liquid protection
IP69K
Level 9 — High-Pressure, High-Temp Water Jets
IP39K
Level 9 — High-Pressure, High-Temp Water Jets
Both IP69K and IP39K share the same liquid protection: High-Pressure, High-Temp Water Jets.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP69K offers higher overall protection than IP39K. Choose IP69K for harsher environments; IP39K may suffice for milder conditions and can be more cost-effective.