IP67 vs IP68 Cable Assemblies: What’s the Difference and Which Do You Need?

A lot of modern appliances need to operate reliably in environments where water, dust and moisture are constant threats. This is where waterproof cable assemblies, IP67/IP68 cable assemblies and sealed cable connectors become key. 

These components help protect sensitive electronics from environmental damage while maintaining stable electrical connections.

Understanding the difference between IP67 and IP68 cable assemblies can help engineers, manufacturers and product designers choose the right solution for their application.

Understanding IP Ratings

The Ingress Protection (IP) rating system is an internationally recognised standard used to define how well an enclosure or assembly protects against solids and liquids. The rating typically consists of two digits.

The first digit represents protection against solid objects such as dust or debris, while the second digit refers to protection against liquids such as water.

For cable assemblies used in harsh environments, high levels of protection are often required. In such cases, IP67/IP68 cable assemblies are the best choice. These ensure that cables and connectors can withstand exposure to water without compromising the electrical connection or damage being caused to internal components.

What Are IP67 Cable Assemblies?

IP67 cable assemblies are designed to provide complete protection against dust and temporary immersion in water.

An IP67 rating means the assembly can typically withstand being submerged in water up to 1 metre deep for up to 30 minutes without water entering. This level of protection makes IP67 cable assemblies suitable for many outdoor or industrial applications where occasional exposure to water is expected.

Examples of applications include:

  • Outdoor security systems
  • Industrial machinery
  • Environmental monitoring equipment
  • Automotive electronics
  • Outdoor lighting systems

To achieve this level of protection, manufacturers like Novara Technologies use sealed cable connectors, durable housing materials, and specialised sealing techniques that prevent water from entering the connection points.

What Are IP68 Cable Assemblies?

IP68 cable assemblies provide an even higher level of protection compared with IP67. While they also offer complete protection from dust, they are designed to withstand continuous or prolonged immersion in water at depths specified by the manufacturer.

Because of this, IP68 cable assemblies are often used in applications where equipment may remain underwater or be exposed to heavy moisture for extended periods.

Typical applications include:

  • Marine electronics
  • Underwater sensors
  • Submersible equipment
  • Water treatment systems
  • Advanced infrastructure outdoors

These assemblies rely heavily on waterproof cable assemblies and sealed cable connectors that maintain long-term protection against water ingress.

The Role of Waterproof Cable Assemblies

Whether an application requires IP67 or IP68 protection, waterproof cable assemblies play a critical role in maintaining system reliability.

Without proper waterproofing, exposure to water can lead to:

  • Electrical short circuits
  • Corrosion of connectors
  • Failing components
  • Reduced lifespan

High-quality waterproof cable assemblies use carefully selected materials, robust sealing methods such as gaskets, O-rings or overmoulding, and durable connector systems designed to withstand environmental pressures.

How Novara Technologies Supports Waterproof Cable Assembly Solutions

Companies developing electronics for demanding environments often require specialised expertise when selecting or designing waterproof connectivity solutions.

Novara Technologies provides comprehensive support for the design, manufacturing, and testing of waterproof cable assemblies and sealed cable connectors for electronics applications. Their experienced engineering team works closely with clients to develop solutions that meet the environmental requirements of each project.

During the design stage, Novara Technologies carefully selects materials, sealing methods, and durability requirements. Assemblies must be capable of resisting temperature changes, UV exposure, chemicals, vibration, and pressure variations.

Once designed, the assemblies are produced using advanced manufacturing processes and strict quality control procedures to ensure they meet demanding industry standards.

Testing and Verification for IP67/IP68 Cable Assemblies

Testing is a critical part of ensuring the effectiveness of IP67/IP68 cable assemblies. Assemblies must undergo rigorous verification procedures to confirm their resistance to water and environmental stress.

Novara Technologies uses specialised equipment to perform IP rating tests, submersion tests, and other environmental simulations. These tests replicate real-world operating conditions to ensure the assemblies perform reliably in challenging environments.

By verifying waterproof performance before deployment, manufacturers can have greater confidence that their electronics will remain protected.

Choosing the Right Solution

Selecting between IP67 and IP68 cable assemblies ultimately depends on how the equipment will be used. In applications where equipment is exposed to occasional splashes or temporary immersion, they might only require IP67 protection. However, devices operating underwater or in consistently wet environments will likely require IP68-rated solutions.

With expertise in waterproof cable assemblies, IP67/IP68 cable assemblies, and sealed cable connectors, Novara Technologies helps clients develop reliable connectivity solutions that protect electronics in even the most demanding environments.

For more details on our waterproof cable assemblies, simply get in touch today.