EMC clamps.Shielding that does what it should.

A shielded cable only protects if the shield is well earthed over a large area. EMC shield clamps make that connection quickly and reliably, on earth rail, DIN rail, C-rail or directly on the I/O module, and add strain relief as well.

Metal spring clamp on a perforated mounting rail

Range

11 series in the range

Click on a series for all variants, article numbers and downloads.

About the product group · Detas Ultra

EMC clamps

Function
Earthing of cable shielding + strain relief
Assembly
Earth rail, DIN rail, C rail or I/O module
Material
Galvanised steel
Standard
Strain relief to EN 62444

The clamp presses the cable braid against a conductive surface over its full circumference. This gives a low-resistance connection to earth, which keeps interference from frequency converters, motors and switching power supplies away from the controls.

There are clamps for every mounting: on a 10 × 3 mm earth rail (MSB, MSBS, MSR), on a TS35 DIN rail (MSD, MSD2), on a 30 mm C-rail (MST), with constant spring pressure (MSF, MSFD, MSFE) and directly in Siemens ET200S and ET200SP modules (MSY, MSK). Most also provide strain relief via cable ties in accordance with EN 62444.

When

When do you choose EMC clamps?

01Frequency converters and servos
Motor cables radiate interference. A properly earthed shield keeps it inside the cable.
02Sensitive signals
Encoders, bus systems and analogue signals benefit from tight shield grounding.
03Quick assembly
Click onto the rail, cable in, done. Tool-free versions as well.
04Directly on the I/O
With Siemens ET200S and ET200SP the clamp goes directly into the module.

How to choose

From cable list to the right model

Send your cable list. We choose the model and size and check that everything fits.

Send your cable list
  1. 01Determine the rail or module

    Earth rail 10 × 3 mm, TS35 DIN rail, C rail 30 mm or Siemens ET200S/ET200SP. That determines the series.

  2. 02Measure the shielding

    The clamping range applies to the diameter of the exposed shield, not the outer sheath.

  3. 03Need strain relief?

    Choose a clamp with one or two cable ties for strain relief in accordance with EN 62444.

  4. 04Vibration

    On vibrating machines the spring clamps (MSF series) give constant contact pressure.

Application

Used in

  • Switch cabinets with frequency converters
  • Servo and motor controls
  • PLC and I/O cabinets (Siemens ET200)
  • Installations with bus and encoder cables

What Wisman does for you

  • Advice on your cabinet: which entry, which size, how many cables
  • One point of contact from cable carrier to control cabinet wall
  • Datasheets and documentation per model available immediately
  • Matched to your cable package from the configurator or ChainLogic

Let the planner work it out

Enter your cables and tick which ones are shielded. The planner chooses the EMC clamp per rail or module, together with the entry in the cabinet wall.

Open the cable entry planner

Article number

Search directly by article number

Do you already know which model you are looking for? Enter the model or article number and request a price straight away.

MSD7 variants

View the series
ModelArticle numberClamping range (mm)View
MSD 22-3022 - 30
MSD 30-3730 - 37
MSD 38-4838 - 48
MSD 50-60–
MSD 62-74–
MSD 50-6050 - 60
MSD 62-7464 - 74

MSD23 variants

View the series
ModelArticle numberClamping range (mm)View
MSD2 1,5-31,5 - 3
MSD2 3-63 - 6
MSD2 7-97 - 9

10 of 72 variants · click a variant to view it

In practice

EMC clamps in practice

All projects
Heavy-duty cable carrier in the guide trough of a container crane

Featured project

Heavy-duty TKHP cable carrier for container cranes at ECT Euromax Rotterdam

On the container cranes of ECT Euromax in Rotterdam, we replaced the cable management with TKHP cable carriers for long travel lengths, prepared in the workshop and installed within a tight time slot.

Customer
ECT Euromax
Location
Rotterdam
Sector
Cranes & ports
Solution
Cable carriers
Environment
Outdoors, salty sea air and strong winds
Assembly
Prepared in the workshop, installed within a tight time slot
Read the project

Frequently asked questions

About EMC clamps

Cable entries

Other solutions

All cable entries

EMC clamps

Not sure which
does the model fit?

Send your cable list or a photo of the cabinet. A specialist advises within 1 working day.

Call a specialist
Grego ErnstTieme ErnstOlaf OttenBas EgberinkDaan van Weeghel

11 specialists in Ruurlo
You speak directly to someone who knows.