Protection level against dust

1 Protected against solid objects over 50 mm in diameter.

2 Protected against solid objects over 12.5 mm in diameter.

3 Protected against solid objects over 2.5 mm in diameter.

4 Protected against solid objects over 1.0 mm in diameter.

5 Dust-proof type: Protected against dust penetration. Continues normal operation even if penetrated by a small quantity of dust.

6 Dust-tight type: Totally protected against dust penetration.

Protection level against water penetration

1 Protected against vertically falling drops of water or condensation.

2 Protected against falling drops of water, if the case is inclined no more than 15° off vertical.

3 Protected against water sprays of water from any direction, even if the case is inclined no more than 60° off vertical.

4 Protected against water splashed from any direction.

5 Protected against direct low pressure water jets from any direction. Limited penetration permitted.

6 Protected against direct high pressure water jets from any direction. Limited penetration permitted.

7 Protected against water penetration when inmersed in water for the specified period of time and under the specified pressure.

8 Protected against water penetration when inmersed in water for long, continuous periods of time