EMV grounding clamp Rittal SZ 2388280 for shield diameters 15–28 mm, model 2388.280

Rittal SZ 2388280 is an EMV grounding clamp designed for shielded cables with external braid diameters between 15 and 28 mm. The clamp provides a solid conductive connection between the cable shield and the equipment grounding point, helping to maintain electromagnetic compatibility (EMC) and reduce electromagnetic interference in industrial and control cabinet environments.

Advantages

The clamp is engineered for consistent mechanical contact and low-resistance grounding, offering stable electrical continuity for braided shields. Its construction suits repeated installations and long-term use in control cabinets and industrial panels. Compact dimensions make it straightforward to fit in confined spaces while maintaining a secure electrical and mechanical bond between shield and ground.

Suitable for

• Termination of braided cable shields with diameters from 15 mm to 28 mm
• EMC grounding in control cabinets, switchgear and industrial enclosures
• Applications requiring low-impedance shield-to-ground connections to reduce interference
• Retrofitting and maintenance tasks where secure shield termination is needed

When it may not be suitable

The clamp is intended specifically for cable shields within the stated diameter range; it is not suitable for very small or very large braid diameters outside 15–28 mm. It is also not a substitute for full mechanical strain relief or for situations where the installation requires integrated connectorized shielding solutions or special environmental sealing beyond standard panel-mounted grounding.

Key specifications

• Suitable shield diameter range: 15–28 mm
• Function: EMV/EMC shield grounding and termination
• Typical application environment: control cabinets, switchgear and industrial enclosures
• Mechanical form factor: compact clamp for panel or cable entry termination
• Material and finish: conductive metal suitable for grounding (manufacturer-specified)

How to use

Position the clamp so it engages the braided outer shield of the cable within the 15–28 mm diameter range, then secure it to the designated grounding point or panel earthing conductor according to the cabinet layout. Ensure the braid is clean and free of insulating overspray, paint, or corrosion to achieve low-resistance contact. Tighten mounting hardware to the torque recommended by the cabinet or system designer to provide stable mechanical and electrical connection. Verify continuity to the equipment ground with an appropriate tester after installation.

What to consider before purchase

• Confirm your cable braid outer diameter is within 15–28 mm before selecting the clamp
• Check that the clamp's mechanical form factor fits the available space at the cable entry or panel grounding point
• Ensure compatibility with your grounding scheme and materials used in the cabinet or enclosure
• Verify any environmental or corrosion-resistance requirements for the installation location

Usage recommendations

For reliable EMC performance, prepare the braided shield by removing non-conductive coverings at the termination point and use a clean, corrosion-free contact surface. After installing the clamp, measure continuity and, where applicable, perform EMC testing to confirm reduced interference. Consider using multiple clamps or additional bonding straps where long cable runs or complex installations demand enhanced grounding.