Z1 – Protection against foreign objects
- 0 - No protection
- 1 - Protection against solid foreign objects Ø > 50.0 mm [1.97“]
- 2 - Protection against solid foreign objects Ø > 12.5 mm [0.49“]
- 3 - Protection against solid foreign objects Ø > 2.5 mm [0.1“]
- 4 - Protection against solid foreign objects Ø > 1.0 mm [0.04“]
- 5 - Dust protection
- 6 - Dustproof
Z2 - Protection against water
- 0 - No protection
- 1 - Protection against dripping water
- 2 - Protection against dripping water with enclosure inclination ≤ 15°
- 3 - Protection against splashing water up to ≤ 60° from the vertical
- 4 - All round protection against splashing water
- 5 - All round protection against water jets
- 6 - All round protection against hose water
- 7 - Watertight when submerged (1 m / 3.28 ft.) for 30 min
- 8 - Watertight when permenantly submerged (1 m / 3.28 ft.)