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How to Choose IP56, IP55, IP65, and IP66 Enclosures?

How to Choose IP56, IP55, IP65, and IP66 Enclosures?

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Differences among IP55, IP56, IP65, and IP66 lie in their combined dust and water ingress ratings. The initial '5' in IP55 and IP56 indicates dust protection, whereas '6' in IP65 and IP66 denotes complete dust tightness.

For water ingress, IP55 and IP65 protect against water jets, while IP56 and IP66 protect against powerful water jets. IP56 or IP66 is suited for harsh spray environments; high-dust areas require prioritizing the first digit.

Selection must account for ventilation, thermal dissipation, maintenance, materials, cleaning protocols, and costs, rather than rating numbers alone. Base final decisions on operational environments, equipment specs, and verified test data.

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