the normal operation of that equipment.
6 dust tight designed and built so that dust cannot enter inside.
0 no protection jis c 0920 no special measures were taken for protection.
1 protection against water drops jis c 0920 designed and built so that is not affected by a vertical water drops.
2 protected against water drops when the device is tilted up to 15?away from vertical. jis c 0920 when a device is tilted up to 15 degrees away from its normal vertical position, it should not be affected by water dropping vertically.
3 protection against water spray jis c 0920 must not be affected by water sprayed up to 60 degrees away from 