Find ISL Products Online at 
Design Note
IP Ratings
A guide to Ingress Protection and interpreting IP ratings to ensure long-term durability and performance in harsh operational environments
When sourcing audio components or electronic devices for challenging environments, understanding is essential. Short for Ingress Protection, this testing standard was established by the International Electrotechnical Commission (IEC) under IEC 60529.
IP ratings classify the exact degree of protection an electrical enclosure provides against the intrusion of solid objects, dust, accidental contact, and water. This system is highly practical; it goes beyond generic marketing terms like “waterproof,” allowing engineers to accurately compare sealing levels and giving end-users proper knowledge of the exact environments a product can survive in.
What Do the IP Code Numbers Mean?
An IP code always starts with the letters “IP” followed by two numerical digits (and occasionally a letter). The higher the numbers, the more protected a device is against either solids or liquids.
Interpreting the “X” Designation
If a product isn’t tested for one of the two categories, an “X” is marked in place of the numerical value. For example, an IPX7 rating refers to a device that is not rated for protection against solid objects, but is officially rated for protection against the effects of water immersion between 15cm to 1m for 30 minutes.
The First Digit: Solid Object & Dust Protection
The first numerical digit indicates the sealing level against solid bodies and dust. These protection levels range from 0 to 6.
- 0-4: Protects against large solid objects (like hands or fingers) down to small tools and wires.
- 5: Dust-protected (limited ingress permitted, but won’t interfere with operation).
- 6: Dust-tight. At the highest rating, the device is completely sealed against all dust for two to eight hours.
The Second Digit: Liquid & Water Protection
The second numerical digit deals with moisture and liquid ingress, with protection levels ranging from 0 through 8.
- 0: No protection.
- 1-4: Protects against dripping, spraying, or splashing water.
- 5-6: Protects against low-pressure to high-pressure water jets.
- 7-8: Protects against continuous immersion in water under pressure for long periods.
Choosing the Right IP Rated Speaker
Selecting the correct [Keyword: IP rated speaker] ensures both safety and long-term functionality. For instance, our Mylar Speakers feature unique cone properties that make them an ideal fit for high-humidity environments.
For the absolute harshest operational environments, a Piezo Loudspeaker is often the best solution. The PZ94 speaker, for example, is engineered to withstand extreme conditions without compromising on sound intensity or durability.
Source Custom Weatherproof Components with ISL Products
Over the years, ISL Products has manufactured a wide variety of custom IP-rated audio components and devices. From weatherproof motorcycle handlebar-mounted loudspeakers to highly specialized underwater lobster call devices, we have a solution to meet your exact IP requirements.
