| Grade |
JIS standard |
Protection level |
| 0 |
|
|
No protection. |
| 1 |
 |
|
Human's hand (φ 50）, etc. does not enter. |
| 2 |
 |
|
The tip of a finger (φ 12）, etc. does not enter. |
| 3 |
 |
|
Solid matters such as tools and wire with the diameter or thickness of 2.5 mm and above do not enter. |
| 4 |
 |
|
Solid matters such as tools and wire with the diameter or thickness of 1.0 mm and above do not enter. |
| 5 |
 |
Dusttight type |
Large amount of dust which can affect the operation does not enter inside. |
| 6 |
 |
Dusttight type |
Dust does not enter inside. |
|
|
| Grade |
JIS standard |
Protection level |
| 0 |
|
|
No protection. |
| 1 |
 |
Drip-proof type I |
Not adversely affected by water drops falling vertically. |
| 2 |
 |
Drip-proof type II |
Not adversely affected by water drops falling vertically within the range of 15°. |
| 3 |
 |
Rainproof type |
Not adversely affected by water drops falling vertically within the range of 60°. |
| 4 |
 |
Droplet-proof type |
Not adversely affected by water droplets coming from any direction. |
| 5 |
 |
Jetproof type |
Not adversely affected by direct jet flow of water coming from any direction. |
| 6 |
 |
Waterproof type |
Direct jet flow of water coming from any direction does not enter. |
| 7 |
 |
Watertight type |
Water does not enter when immersed in water under the specified conditions. |
| 8 |
 |
Underwater type |
Can be used constantly while being immersed in water of the specified pressure. |
 |
| * |
The above information describes about the protection against entry of water only. Please note that the protective performance deteriorates against oil or detergent. |
|
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