IP45 vs IP05
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP45 and IP05 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 4 vs 0). IP45 is rated for > 1 mm — small wires and water jets (6.3 mm nozzle), while IP05 provides no protection and water jets (6.3 mm nozzle).
IP45 protects against 1 mm solid objects and low-pressure water jets (6.3 mm nozzle, 30 kPa). A mid-range indoor/outdoor-covered rating for equipment that may be rinsed or hosed gently.
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.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP45
4 — > 1 mm — Small Wires
IP05
0 — No Protection
Liquid protection (second digit)
IP45
5 — Water Jets (6.3 mm nozzle)
IP05
5 — Water Jets (6.3 mm nozzle)
Dust-tight
IP45
No
IP05
No
Water-jet resistant
IP45
Yes
IP05
Yes
Submersible
IP45
No
IP05
No
Outdoor suitable
IP45
Yes
IP05
Yes
The exact difference (IP45 vs IP05)
Solid protection
IP45
Level 4 — > 1 mm — Small Wires
IP05
Level 0 — No Protection
IP45 provides "> 1 mm — Small Wires" (level 4), while IP05 provides "No Protection" (level 0). IP45 is 4 levels higher.
Liquid protection
IP45
Level 5 — Water Jets (6.3 mm nozzle)
IP05
Level 5 — Water Jets (6.3 mm nozzle)
Both IP45 and IP05 share the same liquid protection: Water Jets (6.3 mm nozzle).
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP45 offers higher overall protection than IP05. Choose IP45 for harsher environments; IP05 may suffice for milder conditions and can be more cost-effective.