IP & Nema Classifications

No protection provided

Protection of hand against accidental access to dangerous parts, and protection of equipment against objects larger than 50mm

Protection of fingers against access to dangerous parts, and protection of equipment against objects larger than 12mm

Protection against objects larger than 2.5mm (e.g. tools, wires)

Protection against objects larger than 1mm (e.g. line tools, wires)

Protection against entry of dust in sufficient quantity to interfere with satisfactory operation of equipment

Complete protection against entry of dust

No protection provided

Protection against drops of water falling vertically

Protection against drops of water falling vertically when the object is tilted by up to 15 degrees from its normal position (in any direction)

Protection against spraying water at up to 60 degrees from the vertical

Protection against splashing and spraying water from all practicable directions

Protection against a low pressure jet of water from all practicable directions

Protection against heavy seas or a strong jet of water from all practicable directions

Protection against immersion

Protection against submersion (tests subject to agreement, but no less severe than numeral 7)