When it comes to protecting electronics and equipment from water, understanding waterproof ratings is essential. Two standards that often cause confusion are IPX9 and IPX9K. While both offer high-level protection against high-pressure water, they serve different purposes. This article breaks down the key differences between IPX9 and IPX9K to help you choose the right protection for your needs.
What Is IPX9?
IPX9 is an international rating under the IEC 60529 standard. It certifies that a device can resist high-pressure water jets from multiple angles. During testing, products are sprayed with water at 80–100 bar pressure from a close range. The water is typically at room temperature. This rating is ideal for consumer electronics, outdoor gadgets, and automotive parts that may face high-pressure cleaning but not high heat.
What Is IPX9K?
IPX9K is an enhanced version based on the DIN 40050-9 standard, originally developed for automotive use. It tests resistance to both high-pressure and high-temperature water—usually around 80°C. This makes IPX9K suitable for industrial and automotive applications where equipment undergoes steam cleaning or sterilization.
Key Differences Between IPX9 and IPX9K
- Temperature Resistance:
- IPX9 uses room-temperature water.
- IPX9K uses high-temperature water (up to 80°C).
- Testing Standards:
- IPX9 follows IEC 60529.
- IPX9K follows DIN 40050-9.
- Application:
- IPX9 is common in consumer products.
- IPX9K is used in industrial and automotive settings.
- Testing Process:
Both ratings use similar pressure and spray angles, but IPX9K adds high-temperature stress.
How Is IPX9 Testing Done?
IPX9 testing involves mounting the device on a rotating turntable and spraying it with high-pressure water jets from four angles. The test checks for water ingress, functional failure, and physical damage. To pass, a device must remain fully functional and sealed.
Which Rating Should You Choose?
- Choose IPX9 for high-pressure water resistance in everyday conditions.
- Choose IPX9K for environments with high-temperature water, like industrial cleaning or automotive processes.
Professional IPX9K Testing Equipment by BONAD
For accurate IPX9K certification, BONAD offers professional waterproof testing equipment tailored to specific requirements. Whether for industrial or automotive use, BONAD provides reliable solutions to meet DIN 40050-9 standards.
Understanding the differences between IPX9 and IPX9K helps you select the right protection for your devices. For high-temperature and high-pressure environments, IPX9K is the superior choice.
