Cable Clamps
for effective EMC grounding in control cabinets
Shield clamps are used to connect cable shields to ground and thus reduce electromagnetic interference in control cabinets and industrial installations.
The correct shield clamp ensures low impedance, stable EMC performance and service-friendly installation.
Explore our range of screen clamps
Rivet mounting
Screw mounting, with / out strain relief
For TS35 rail, with / out strain relief
For 10x3 rail, with / out strain relief
For sheet metal edge, with / out strain relief
For circuit board assembly
Choose the right screen clamp for your installation
The choice of shield clamp is governed by the cable type, the structure of the shield and how the installation is to be mounted in the control cabinet.
Pay particular attention to:
- Cable diameter and screen type – braided or foil screen
- Mounting – DIN rail, mounting plate or directly on ground point
- Contact pressure – crucial for low transition impedance
- Service and access – important for re-tightening and maintenance
The right shield clamp provides consistent EMC protection and reduces the risk of interference in control and signal cables.
Shield clamps for different cable types
Shield clamps for braided cable shield
Braided shields require even and sufficiently high contact pressure to ensure good ground connection.
Characteristics:
- Stable mechanical fixation
- Good electrical contact around the entire screen
- Common solution in industrial control cabinets
Shield clamps for foil shield
Foil screens are more delicate and require clamps that do not damage the screen.
Characteristics:
- Customized pressure against the screen
- Secure connection without deformation
- Often used in signal and data cables
EMC grounding in control cabinets
Shield clamps are a central component for EMC grounding in control cabinets. By connecting the cable shield directly to ground at the entry point, interference is limited before it spreads further in the installation.
Correct EMC grounding contributes to:
- Reduced interference sensitivity
- Stable communication
- EMC requirements met
When are other solutions more appropriate?
Shield clamps are not always the right choice in all applications.
Alternative solutions may be more suitable:
- When grounding several protective earths together, grounding bars are used.
- For flexible connections or vibrations, grounding braids are used.
For tight cable entry with EMC requirements, EMC cable glands may be a better choice
FAQ – Frequently Asked Questions about Screen Clamps
What is the difference between shield clamp and grounding braid?
Shield clamps are used for direct connection of cable shields, while grounding braids are used for flexible grounding between components.
Where should shield clamps be mounted in the control cabinet?
They are normally mounted close to the cable entry to divert interference as early as possible.
Can multiple cables be connected to the same shield clamp?
It depends on the design of the clamp. Only use solutions designed for multiple cables.
Do screen clamps need maintenance?
When rewiring or servicing, the contact point should be checked to ensure a good connection.
Accessories and complementary products
For a complete EMC solution, shield clamps are often combined with:
Do you need help choosing the right cable clamp?
Our experts will help you choose the right shield clamp for EMC grounding, cable type and installation in control cabinets.
