IP05 vs IP59K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP05 and IP59K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 5) and liquid protection (level 5 vs 9K). IP05 is rated for no protection and water jets (6.3 mm nozzle), while IP59K provides dust-protected 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.
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)
IP05
0 — No Protection
IP59K
5 — Dust-Protected
Liquid protection (second digit)
IP05
5 — Water Jets (6.3 mm nozzle)
IP59K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP05
No
IP59K
Limited
Water-jet resistant
IP05
Yes
IP59K
Yes
Submersible
IP05
No
IP59K
Yes
Outdoor suitable
IP05
Yes
IP59K
Yes
The exact difference (IP05 vs IP59K)
Solid protection
IP05
Level 0 — No Protection
IP59K
Level 5 — Dust-Protected
IP05 provides "No Protection" (level 0), while IP59K provides "Dust-Protected" (level 5). IP59K is 5 levels higher.
Liquid protection
IP05
Level 5 — Water Jets (6.3 mm nozzle)
IP59K
Level 9 — High-Pressure, High-Temp Water Jets
IP05 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 IP05. Choose IP59K for harsher environments; IP05 may suffice for milder conditions and can be more cost-effective.