IP39K vs IPX8
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP39K and IPX8 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 3 vs 0) and liquid protection (level 9K vs 8). IP39K is rated for > 2.5 mm — tool / wire and high-pressure, high-temp water jets, while IPX8 provides no protection and continuous immersion (manufacturer-specified).
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.
IPX8 protects against continuous immersion under manufacturer-specified conditions (depth and duration), with solid protection not specified. The standard for submersible consumer electronics.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP39K
3 — > 2.5 mm — Tool / Wire
IPX8
0 — No Protection
Liquid protection (second digit)
IP39K
9 — High-Pressure, High-Temp Water Jets
IPX8
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP39K
No
IPX8
No
Water-jet resistant
IP39K
Yes
IPX8
Yes
Submersible
IP39K
Yes
IPX8
Yes
Outdoor suitable
IP39K
Yes
IPX8
Yes
The exact difference (IP39K vs IPX8)
Solid protection
IP39K
Level 3 — > 2.5 mm — Tool / Wire
IPX8
Level 0 — No Protection
IP39K provides "> 2.5 mm — Tool / Wire" (level 3), while IPX8 provides "No Protection" (level 0). IP39K is 3 levels higher.
Liquid protection
IP39K
Level 9 — High-Pressure, High-Temp Water Jets
IPX8
Level 8 — Continuous Immersion (manufacturer-specified)
IP39K handles 8–10 MPa (High-Pressure, High-Temp Water Jets), while IPX8 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP39K provides 1 level more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP39K offers higher overall protection than IPX8. Choose IP39K for harsher environments; IPX8 may suffice for milder conditions and can be more cost-effective.