IP20 vs IP59K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP20 and IP59K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 2 vs 5) and liquid protection (level 0 vs 9K). IP20 is rated for > 12.5 mm — finger and no protection, while IP59K provides dust-protected and high-pressure, high-temp water jets.
IP20 protects against contact with a finger and solid objects larger than 12.5 mm. It has no water protection and is intended for dry, indoor use such as consumer electronics and IT equipment.
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)
IP20
2 — > 12.5 mm — Finger
IP59K
5 — Dust-Protected
Liquid protection (second digit)
IP20
0 — No Protection
IP59K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP20
No
IP59K
Limited
Water-jet resistant
IP20
No
IP59K
Yes
Submersible
IP20
No
IP59K
Yes
Outdoor suitable
IP20
No
IP59K
Yes
The exact difference (IP20 vs IP59K)
Solid protection
IP20
Level 2 — > 12.5 mm — Finger
IP59K
Level 5 — Dust-Protected
IP20 provides "> 12.5 mm — Finger" (level 2), while IP59K provides "Dust-Protected" (level 5). IP59K is 3 levels higher.
Liquid protection
IP20
Level 0 — No Protection
IP59K
Level 9 — High-Pressure, High-Temp Water Jets
IP20 provides "No Protection" (level 0), while IP59K provides "High-Pressure, High-Temp Water Jets" (level 9). IP59K is 9 levels higher.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP59K offers higher overall protection than IP20. Choose IP59K for harsher environments; IP20 may suffice for milder conditions and can be more cost-effective.