IP63 is an IEC 60529 ingress-protection rating. The two digits describe two different things, so read them in order.
- First digit 6, the enclosure is fully dust-tight, the highest solid-particle rating, allowing no dust ingress at all.
- Second digit 3, the enclosure is protected against water sprayed at angles up to 60 degrees from vertical.
This makes IP63 a good fit for dusty indoor environments and sheltered outdoor placements, such as under eaves or inside ventilated cabinets, where light spray is possible but direct hose jets, driving rain from every direction, and immersion are not. It is not rated for washdown or submersion.
Enclosure rating matters because a sensor that fails on dust or moisture means lost data and field maintenance. Matching the IP rating to real conditions, including dust, spray angle, and cleaning method, helps a LoRaWAN deployment survive its environment. Compare nearby ratings if your site needs stronger liquid protection.
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Frequently asked questions
What does IP63 mean?
Under IEC 60529, the first digit 6 means the enclosure is dust-tight (complete protection against dust ingress, the top solids rating). The second digit 3 means it is protected against water sprayed at angles up to 60 degrees from vertical.
Is IP63 waterproof?
No. IP63 covers spraying water only, not jets, heavy rain at all angles, or immersion. It is not waterproof. For washdown jets choose IP65 or higher, and for submersion choose IP67 or IP68.
Where can I deploy an IP63 device?
IP63 suits dusty indoor areas and sheltered outdoor sites where the device may meet light spray but never direct jets, flooding, or submersion.