IP20 vs IP15
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP20 and IP15 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 2 vs 1) and liquid protection (level 0 vs 5). IP20 is rated for > 12.5 mm — finger and no protection, while IP15 provides > 50 mm — back of hand and water jets (6.3 mm nozzle).
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.
With IP15, an enclosure receives protection against solid objects larger than 50 mm 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 1 with second-digit (liquid) level 5.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP20
2 — > 12.5 mm — Finger
IP15
1 — > 50 mm — Back of Hand
Liquid protection (second digit)
IP20
0 — No Protection
IP15
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP20
No
IP15
No
Water-jet resistant
IP20
No
IP15
Yes
Submersible
IP20
No
IP15
No
Outdoor suitable
IP20
No
IP15
Yes
The exact difference (IP20 vs IP15)
Solid protection
IP20
Level 2 — > 12.5 mm — Finger
IP15
Level 1 — > 50 mm — Back of Hand
IP20 provides "> 12.5 mm — Finger" (level 2), while IP15 provides "> 50 mm — Back of Hand" (level 1). IP20 is 1 level higher.
Liquid protection
IP20
Level 0 — No Protection
IP15
Level 5 — Water Jets (6.3 mm nozzle)
IP20 provides "No Protection" (level 0), while IP15 provides "Water Jets (6.3 mm nozzle)" (level 5). IP15 is 5 levels higher.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP15 offers higher overall protection than IP20. Choose IP15 for harsher environments; IP20 may suffice for milder conditions and can be more cost-effective.