How to choose the right cable gland – tightness & flexibility in practice
Correct cable entry for tightness, flexibility and serviceability
The correct cable entry determines both tightness, flexibility and serviceability. The choice is determined by how often you need to maintain the system, what IP requirements apply and whether the cables are routed with or without connectors. Here we compare modular cable entry systems – cable glands for cables but connector with cable entry system for cables with connector and brush seals but also multi-flanges and explains how different IP classes affect installation in practice.§
Correct cable entry for tightness, flexibility and serviceability
The correct cable entry determines both tightness, flexibility and serviceability. The choice is determined by how often you need to maintain the system, what IP requirements apply and whether the cables are routed with or without connectors. Here we compare modular cable entry systems – cable glands for cables but connector with cable entry system for cables with connector and brush seals but also multi-flanges and explains how different IP classes affect installation in practice.§
Modular systems (for cables with connectors)
- IP Rating: IP54 - IP68
- Advantages: cables with connectors can pass through, flexible and tight.
- Limitation: higher cost, requires more planning.
- Typical uses: mechanical engineer, automation, energy.
Cable entry plates & Multiflanges
- IP Rating: IP54 - IP68
- Advantages: high density, easy installation of multiple cables.
- Limitation: cables must be routed without connectors.
- Typical uses: panel builder, control cabinet.
Cable entries with brush seal
- Advantages: flexible, easy to service and retrofit.
- Limitation: low density, not for outdoor use.
- Typical industries: robotics, machine service panels.
IP classes in practice
The IP rating determines how well a cable gland protects against dust and water. Below you will find a comparison of the most common levels and their typical uses.
| IP class | Protection level | Typical uses |
|---|---|---|
| IP54 | Basic level, service-friendly | Service panels, robotics |
| IP65 | Close | Panel builder, control cabinet |
| IP66–68 | Very dense | Outdoor, demanding environments |
Summary
- IP54 used where serviceability is more important than maximum tightness, e.g. in robotics and service panels.
- IP65 is the standard choice for control cabinet and panel builders who need reliable tightness against dust and water jets.
- IP66–68 provides the highest level of protection and is ideal for outdoor installations and demanding industrial environments.
Combined table overview
Different types of cable entry systems have their strengths and limitations. Below we compare modular entries, plates & multi-flanges and brush seals based on IP rating, advantages, limitations and typical applications.
| Type | IP class | Advantages | Limitations | Use |
|---|---|---|---|---|
| Modular | IP54–IP68 | Contacts can pass | More complex | Mechanical engineer, automation |
| Plates & Multiflange | IP54–IP68 | Tight, easy installation | Not for contacts | Panel builder |
| Brush seal | Flexible, service-friendly | low IP class | Robotics, service panels |
Summary
- Modular penetrations is the best choice when cables with connectors are to pass through the enclosure.
- Plates & multi-flanges provides high tightness and easy installation, but is used for cables without connectors.
- Brush seals Suitable where flexibility and serviceability are more important than high IP rating, e.g. in robotics and service panels.
More information
Standards
- EN 60529 – IP rating classification
- UL 94 – flame classification for plastics
- EN 50262 – cable entries
Industry Use Cases
- Robotics: Brush seal provides easy cable service.
- Panel builder: multi-flanges for many cables in a small area.
- Automation/Energy: Modular systems provide both flexibility and tightness.
FAQ
Which solution provides the highest density?
Modular systems up to IP68
When should I choose multi-flange over modular system?
When you need to seal many cables without connectors, at a lower cost.
Which solution is best for recurring service?
Brush seal, thanks to easy access.
Do you need help choosing the right cable gland?
Our experts will help you find the right cabinet for your application.
