www.se.com55Simplified design guideDetermining the degree of protectionCABDEFMeaning of the numerals and letters representing the degree of protection IP1st characteristic numeral: corresponds to protection of equipment against penetration of solid objects and protection of persons against direct contact with live parts.Protection of equipmentProtection of persons00Non-protectedNon-protected11Protected against the penetration of solid objects having a diameter greater than or equal to 50 mm.Protected against direct contact with the back of the hand (accidental contact).22Protected against the penetration of solid objects having a diameter greater than or equal to 12.5 mm.Protected against direct finger contact.33Protected against the penetration of solid objects having a diameter greater than or equal to 2.5 mm.Protected against direct contact with a 2.5 mm diameter tool.44Protected against the penetration of solid objects having a diameter greater than 1 mm.Protected against direct contact with a 1 mm diameter wire.55Dust protected (no harmful deposits).Protected against direct contact with a 1 mm diameter wire.66Dust tight.Protected against directcontact with a 1 mmdiameter wire.2nd characteristic numeral: corresponds to protection of equipment against penetration of water with harmful effectsProtection of equipment0Non-protected1Protected against vertical dripping water (condensation).2Protected against dripping water at an angle of up to 15°.3Protected against rain at an angle of up to 60°.4Protected against splashing water in all directions.5Protected against water jets in all directions.6Protected against powerful jets of water and waves.7Protected against the effects of temporary immersion.8Protected against the effects of prolonged immersion under specified conditions.DEBU020EN
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