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IP protection ratings

IP rating table (IEC 60529): dust and water protection. First and second digit meanings, examples for sockets, lamps and panels.

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What IP means

IP (Ingress Protection) — degree of protection against dust (first digit, 0–6) and water (second digit, 0–9) per IEC 60529.

First digit — solids and dust

DigitProtection
0No protection
1Objects > 50 mm
2Objects > 12.5 mm
3Objects > 2.5 mm
4Objects > 1 mm
5Dust (partial)
6Dust-tight

Second digit — water

DigitProtection
0No protection
4Splashing from any direction
5Water jets
6Powerful jets
7Immersion up to 1 m (30 min)
8Continuous immersion > 1 m

Typical applications

RatingApplication
IP20Indoor sockets and switches
IP44Bathrooms, kitchens (splash zones)
IP54Outdoor luminaires
IP65Outdoor panels, industrial lights
IP67Submersible equipment

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Data is for reference. Final design decisions must follow current regulations and a qualified engineer.