What is the protection rating of the distribution box?

Release time： 2025-09-30

It prevents solid objects larger than 12.5mm from entering, but has no waterproof capability. Ideal for dry indoor environments such as typical homes, offices, and similar settings.

The protection rating of distribution boxes is typically indicated using an IP code, and common ratings include the following:

Indoor Distribution Box

  • IP20 : It prevents solid objects larger than 12.5mm from entering, but has no waterproof capability. Ideal for use in dry indoor environments such as typical homes, offices, and similar settings.

  • IP30 : It prevents solid objects larger than 2.5mm from entering, but has no waterproof capability. Suitable for general indoor environments such as factory workshops, warehouses, and similar settings.

  • IP40 : It prevents solid objects larger than 1mm from entering, but has no waterproof capability. Ideal for indoor environments with slightly poor conditions, such as factories that accumulate dust and small particulate impurities.

Outdoor Distribution Box

  • IP54 : Dustproof rating is 5, effectively preventing harmful dust from accumulating; waterproof rating is 4, offering protection against water splashes from all directions—making it suitable for outdoor environments with some shelter.

  • IP55 : Dustproof rating is 5, and waterproof rating is 5—capable of withstanding low-pressure water jets, making it suitable for typical outdoor environments.

  • IP65 : Dustproof rating is 6—completely dustproof; waterproof rating is 5—protected against water jets, making it suitable for unsheltered outdoor environments.

  • IP66 : Dustproof rating of 6—completely dustproof; waterproof rating of 6—protected against powerful water jets, making it ideal for harsh outdoor environments and scenarios requiring high-pressure cleaning.

Special Environment Distribution Box

  • IP67 : Dustproof rating is 6—completely dustproof; waterproof rating is 7—can withstand brief immersion in water, making it suitable for underwater or humid environments.

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