Protection Classification IP 20 to DIN EN 60529 (VDE 0470)
The protection classification offered by an enclosure is shown by the letter IP (Ingress Protection) and two digits. The first digit indicates two factors:
1. Protection for persons
2. Protection for equipment
The second digit indicates the protection against water.
First digit: 2 |
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| Protection for persons: | Protection against a finger touching dangerous parts. | |
| Definition: | The test finger, jointed, 12 mm in diameter and 80 mm long, must have sufficient distance from dangerous parts. | IP 2X
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| Test conditions: | The accessing probe is pushed against every opening of the enclosure with a standardised force or is inserted through the opening. | |
| Conditions for acceptance: | The protection is satisfactory if a sufficient distance between the accessing probe and dangerous parts is kept. | |
| Protection for equipment: | Protection against a solid foreign body 12,5 mm or more in diameter. | |
| Definition: | A round body 12,5 mm in diameter must not enter fully. | |
| Test conditions: | The object probe is pushed against every opening of the enclosure with a standardised force. | |
| Conditions for acceptance: | The protection is satisfactory if the entire diameter of the probe does not fit into an opening. | |
Second digit: 0 |
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| Protection against water : | No protection | |
| Definition: | - | IP X0
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| Test conditions: | - | |
| Conditions for acceptance: | - | |
Important note:
The protection classifications given for the enclosures refer to unmachined standard enclosures as supplied. As the tests to show protection classifications take no account of ageing, the maintenance of the protection classification throughout the lifetime of the equipment is not guaranteed.