1. First Digit (0-6): Protection Against Solid Objects
- No protection.
- Protected against objects > 50 mm (e.g., hands).
- Protected against objects > 12.5 mm (e.g., fingers).
- Protected against objects > 2.5 mm (e.g., tools).
- Protected against objects > 1 mm (e.g., wires).
- Dust-protected (limited ingress permitted).
- Dust-tight (no ingress of dust).
2. Second Digit (0-9): Protection Against Moisture
- No protection.
- Protected against vertically falling drops of water (e.g., condensation).
- Protected against water drops falling at an angle up to 15° from vertical.
- Protected against spraying water (up to 60° from vertical).
- Protected against splashing water from any direction.
- Protected against water jets from any direction.
- Protected against heavy seas or powerful water jets.
- Protected against immersion in water up to 1 meter for 30 minutes.
- Protected against immersion beyond 1 meter.
- Protected against high-pressure and high-temperature water jets.
Examples of IP Ratings
- IP65: Dust-tight and protected against water jets.
- IP67: Dust-tight and protected against immersion in water up to 1 meter for 30 minutes.
- IP68: Dust-tight and protected against continuous immersion in water, typically beyond 1 meter.
Importance of IP Ratings
IP ratings are crucial in selecting equipment for various environments, particularly in electrical and electronic applications. Understanding the IP rating helps ensure that the right equipment is used in the right settings, enhancing reliability and safety by preventing failure due to exposure to dust and moisture.