IP05 vs IP39K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP05 and IP39K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 3) and liquid protection (level 5 vs 9K). IP05 is rated for no protection and water jets (6.3 mm nozzle), while IP39K provides > 2.5 mm — tool / wire and high-pressure, high-temp water jets.
Under IEC 60529, IP05 specifies no protection against solid objects and protection against water jets. Water projected by a 6.3 mm nozzle against the enclosure from any direction shall have no harmful effects.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 0 with second-digit (liquid) level 5.
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)
IP05
0 — No Protection
IP39K
3 — > 2.5 mm — Tool / Wire
Liquid protection (second digit)
IP05
5 — Water Jets (6.3 mm nozzle)
IP39K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP05
No
IP39K
No
Water-jet resistant
IP05
Yes
IP39K
Yes
Submersible
IP05
No
IP39K
Yes
Outdoor suitable
IP05
Yes
IP39K
Yes
The exact difference (IP05 vs IP39K)
Solid protection
IP05
Level 0 — No Protection
IP39K
Level 3 — > 2.5 mm — Tool / Wire
IP05 provides "No Protection" (level 0), while IP39K provides "> 2.5 mm — Tool / Wire" (level 3). IP39K is 3 levels higher.
Liquid protection
IP05
Level 5 — Water Jets (6.3 mm nozzle)
IP39K
Level 9 — High-Pressure, High-Temp Water Jets
IP05 handles 30 kPa (Water Jets (6.3 mm nozzle)), while IP39K handles 8–10 MPa (High-Pressure, High-Temp Water Jets). IP39K provides 4 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP39K offers higher overall protection than IP05. Choose IP39K for harsher environments; IP05 may suffice for milder conditions and can be more cost-effective.