In industrial and technical environments, protecting electrical components from external factors such as water, dust, and dirt is essential. To define this level of protection, the IP rating system is used, including classifications like IP67 and IP68.
These ratings are commonly found on connectors and determine how well they can withstand environmental exposure.
What Is an IP Rating?
IP stands for Ingress Protection. It is an international standard that classifies the level of protection an electrical component has against solids and liquids.
An IP rating consists of two numbers:
- The first digit represents protection against solid particles such as dust
- The second digit represents protection against water
The higher the numbers, the greater the level of protection.
What Does IP67 Mean?
An IP67-rated connector is completely dust-tight and protected against temporary immersion in water.
This means:
- full protection against dust ingress
- resistance to short-term water immersion
IP67 is commonly used in applications where occasional exposure to water may occur, but prolonged submersion is not expected.
What Does IP68 Mean?
IP68 offers a higher level of protection. It also ensures complete dust resistance but is designed for prolonged or continuous immersion in water.
The exact depth and duration can vary depending on the manufacturer, but IP68 is generally suitable for harsh environments where water exposure is constant or long-term.
IP67 vs IP68 in Real Applications
The key difference lies in exposure level and duration:
- IP67 = temporary water immersion
- IP68 = long-term or continuous water immersion
Choosing the right rating depends entirely on the environmental conditions of the application.
Where Are Waterproof Connectors Used?
Connectors with IP67 or IP68 protection are widely used in:
- industrial machinery
- outdoor installations
- transportation systems
- automotive applications
- marine environments
In these sectors, reliable sealing is critical to prevent failures and system damage.
Why Choosing the Right IP Rating Matters
Selecting the wrong IP rating can lead to serious issues such as:
- corrosion
- electrical failures
- system downtime
That is why it is important to consider environmental conditions carefully before selecting a connector.
Need Guidance?
Not sure which IP rating is suitable for your application?
Belko can help you select the right waterproof connector based on your technical requirements and environment.
Frequently Asked Questions
Is IP68 always better than IP67?
Not necessarily. The right choice depends on the application.
Are IP67 connectors fully waterproof?
They are water-resistant against temporary immersion, but not designed for long-term submersion.