The protection level of explosion-proof distribution cabinets is drafted by IEC and graded according to the waterproof and dustproof performance of electrical equipment enclosures. The full name is IP protection level. The IP protection level consists of two digits. The first digit indicates the level of dust protection and protection against foreign object intrusion (foreign objects here include tools, human fingers, etc., which must not touch the live parts inside the electrical equipment to prevent electric shock). The second digit indicates the degree of sealing against moisture and water immersion. The higher the number, the higher the protection level.

Protection ratings are mostly expressed by IP followed by two digits, which are used to specify the level of protection.。 For Example IP54、IP65Etc.Etc.。

First digitIndexDigitTableBrightExplosion-proof distribution boxDust-proof的range， Or PioneerIsHuman们inSealingEnvironmentInAvoidRestrictedHazardousHarmful的ExtentDegree。GenerationTablepreventionSolidStructureExcellentMineralEntry的level，MostHighlevelIs6；

Second digitIndexDigitTableBrightExplosion-proof distribution boxWaterproof的ExtentDegree，GenerationTablepreventionAdvancedLevel的level，MostHighlevelIs8。

IPAfter-salesFirst digitIndexDigitIsDust-prooflevel

IPAfter-salesSecond digitIndexDigitIsWaterprooflevel