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IP Rating:
The first digit is for the level of protection against penetration of solid objects into the housing.
The second digit is for protection against penetration of liquids into the housing.
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1st Digit
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Degree of Protection aginst solid object
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2nd Digit
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Degree of Protection against liquid
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0
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No protection against contact or entry of solid objects
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0
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No protection
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1
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Protection against accidental contact by hand, but not
deliberate contact. Protection against large objects ( over 50mm)
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1
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Protection against drops of condensed water. Condensed water falling on housing
shall have no effect.
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2
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Protection against accidental contact by fingers.
Protection against medium size foreign objects ( over 12mm)
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2
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Protection against drops of liquid. Drops of falling liquid
shall have no effect when housing is tilted to 15 degrees from vertical.
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3
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Protection against contact by tools, wire etc.
Protection against small size foreign objects ( over 2.5mm)
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3
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Protection against rain. No harmful effect from rain at angle less than
60 degrees from vertical.
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4
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Protection against contact by small tools and wires.
Protection against small foreign objects ( over 1mm)
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4
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Protection against splashing from any direction.
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5
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Complete protection against contact live or moving parts.
Protection against harmful deposits of dust
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5
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Protection against water jets from any direction.
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6
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Complete protection of live or moving parts.
Protection against penetration of dust
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6
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Protection against conditions on ship's decks. Water from heavy seas will not enter.
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7
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Protection against immersion in water. Water will not enter under stated condtions of
pressure and time.
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8
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Protection against indefinite immersion in water under a specified pressure.
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