Von FluxetteTeam
IPX4 vs IPX7 vs IPX8
Reading Time: 6 minutes
Direct Answer
IPX4 addresses splashing water, IPX7 addresses temporary immersion under standard conditions, and IPX8 addresses continuous immersion under conditions specified between the manufacturer and tester.
A higher number is not permission for every water activity. Verify the exact product guidance and test conditions.
Key Takeaways
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IP ratings classify enclosure protection, not overall product quality.
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IPX7 and IPX8 use different immersion conditions.
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IPX8 limits are product-specific.
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Chemical exposure, temperature, moving jets and charging are separate questions.
Comparison Table
| Rating | General Test Category | Practical Interpretation |
| IPX4 | Splashing water | May tolerate splashes under defined test conditions |
| IPX7 | Temporary immersion | Tested for temporary immersion under standard conditions |
| IPX8 | Continuous immersion | Conditions must be specified for the product and test |
This table is educational and is not a substitute for the full IEC standard or the manufacturer’s instructions.
Why IPX8 Is Not a Blank Cheque
IPX8 conditions are defined for the tested product.
One IPX8 device may have different depth and duration limits from another.
The rating also does not automatically cover:
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Salt water
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Bath oil
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Chlorine
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High temperatures
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Powerful water jets
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Charging in wet conditions
Frequently Asked Questions
Is IPX4 safe to submerge?
No. A splash rating should not be treated as an immersion rating.
Is IPX8 always better than IPX7?
It indicates a different immersion category, but suitability still depends on the stated conditions and your use case.
What does the X mean?
It means that the code is not stating a solid-particle rating in that position.
Do IP ratings cover the charger?
Not unless the charger is separately rated and documented. Keep charging equipment dry.
Sources
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IEC 60529: https://webstore.iec.ch/en/publication/2452