IP00 vs IP49K
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP00 and IP49K are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 4) and liquid protection (level 0 vs 9K). IP00 is rated for no protection and no protection, while IP49K provides > 1 mm — small wires and high-pressure, high-temp water jets.
IP00 offers no protection against solid objects or moisture. It is suitable only for indoor, climate-controlled environments where the equipment is fully enclosed within another protective housing.
Built to withstand protection against solid objects larger than 1.0 mm and resistance to high-pressure (8–10 MPa), high-temperature (80 °C) water jets. Classified as IEC 60529 ingress protection code IP49K, it pairs solid level 4 with liquid level 9K.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP00
0 — No Protection
IP49K
4 — > 1 mm — Small Wires
Liquid protection (second digit)
IP00
0 — No Protection
IP49K
9 — High-Pressure, High-Temp Water Jets
Dust-tight
IP00
No
IP49K
No
Water-jet resistant
IP00
No
IP49K
Yes
Submersible
IP00
No
IP49K
Yes
Outdoor suitable
IP00
No
IP49K
Yes
The exact difference (IP00 vs IP49K)
Solid protection
IP00
Level 0 — No Protection
IP49K
Level 4 — > 1 mm — Small Wires
IP00 provides "No Protection" (level 0), while IP49K provides "> 1 mm — Small Wires" (level 4). IP49K is 4 levels higher.
Liquid protection
IP00
Level 0 — No Protection
IP49K
Level 9 — High-Pressure, High-Temp Water Jets
IP00 provides "No Protection" (level 0), while IP49K provides "High-Pressure, High-Temp Water Jets" (level 9). IP49K is 9 levels higher.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP49K offers higher overall protection than IP00. Choose IP49K for harsher environments; IP00 may suffice for milder conditions and can be more cost-effective.