3. Protected against solid objects > 2.5 mm in
diameter
4. Protected against solid objects > 1 mm in diameter
5. Protected against dust; limited ingress (no harmful
deposits)
6. Dust-tight
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3. Protected against spraying water
4. Protected against splashing water
5. Protected against water jet spray
6. Protected against heavy jet spray
7. Protected against the effects of immersion
8. Protected against submersion
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