IP08 vs IP66
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP08 and IP66 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 6) and liquid protection (level 8 vs 6). IP08 is rated for no protection and continuous immersion (manufacturer-specified), while IP66 provides dust-tight and powerful water jets (12.5 mm nozzle).
Built to withstand no protection against solid objects and protection against the effects of continuous immersion in water under conditions specified by the manufacturer.. Classified as IEC 60529 ingress protection code IP08, it pairs solid level 0 with liquid level 8.
IP66 is dust-tight and resists powerful water jets (12.5 mm nozzle, 100 kPa). A robust outdoor rating for equipment exposed to heavy rain, storms, or directed high-pressure hosing (but not high-pressure washdown).
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP08
0 — No Protection
IP66
6 — Dust-Tight
Liquid protection (second digit)
IP08
8 — Continuous Immersion (manufacturer-specified)
IP66
6 — Powerful Water Jets (12.5 mm nozzle)
Dust-tight
IP08
No
IP66
Yes
Water-jet resistant
IP08
Yes
IP66
Yes
Submersible
IP08
Yes
IP66
No
Outdoor suitable
IP08
Yes
IP66
Yes
The exact difference (IP08 vs IP66)
Solid protection
IP08
Level 0 — No Protection
IP66
Level 6 — Dust-Tight
IP08 provides "No Protection" (level 0), while IP66 provides "Dust-Tight" (level 6). IP66 is 6 levels higher.
Liquid protection
IP08
Level 8 — Continuous Immersion (manufacturer-specified)
IP66
Level 6 — Powerful Water Jets (12.5 mm nozzle)
IP08 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)), while IP66 handles 100 kPa (Powerful Water Jets (12.5 mm nozzle)). IP08 provides 2 levels more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
Recommendation
IP66 offers higher overall protection than IP08. Choose IP66 for harsher environments; IP08 may suffice for milder conditions and can be more cost-effective.