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Strain relief for cable


Strain relief devices from igus have been specifically developed for use in energy chains and dynamic applications. They fix cables in energy chains and ensure that cables are not torn out. The combination of chainflex cable materials and the contacting plastic components of the strain relief elements from igus are designed for long cable service life and maximum holding force. For years, strain relief elements have been used by customers around the world, such as the CFXL clamps for long travels and harsh applications, or the CFU.V strain relief with innovative honeycomb design for installation in seconds and high holding force, or the chainfix CFN nugget strain relief blocks for simple and cost-effective strain relief solutions.


These types are available


chainfix clamps

CFX clamps

  • Can be integrated into KMA mounting bracket
  • For up to three cables stacked above one another
  • Reduced installation height, space-saving
  • High strength for dynamic applications
  • For the following energy chain systems: E4 | E6 | for all plastic-metal mounting bracket (KMA) with C profile

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Strain relief separators

Strain relief separators

  • Can be integrated in the mounting bracket
  • Strain relief separator can be positioned anywhere as required
  • For applications with medium accelerations
  • Easy to fit, cost-effective
  • For the following energy chain systems: E2/000 | E2 e-tubes | E6 | T3

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Tiewrap plates

Tiewrap plates

  • For many applications with medium rates of acceleration
  • Can be clipped onto some mounting brackets
  • Can be used as an individual part in switchgear cabinets or in the assembly of machines
  • For the following energy chain systems: easy chain | E2/000 | E2 tubes | E4 | E6

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Honeycomb strain relief CFU

Honeycomb strain relief CFU

  • Strain relief achieved up to 80% faster
  • Simply insert cables and hoses into the honeycomb and close
  • Strain relief openable from both sides
  • Easy to make changes - add or remove cables/hoses
  • For the following energy chain systems: E2.48 | 3400/3500 | 3450/3480 | R68 | R167/168 | R2.48 | E4.48L/R4.48L | E4.42/H4.42/R4.42 | E61.52 | E6.52/R6.52

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Strain relief element CFV

Strain relief element CFV

  • Strain relief for cables can be retrofitted easily, even in the case of closed energy tubes and different plug-in connectors
  • Easy to retrofit
  • For the following energy chain systems: E2/000 | R2.1 | E4.1L | E4.1

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Strain relief nuggets

Strain relief element CFV

  • Cost-effective, fast strain relief for easy applications with small space and medium accelerations
  • For all KMA mounting brackets with C-profile
  • For the following energy chain systems: For all KMA with C-profile or top-hat (DIN) rails

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Strain relief connector system CFB

Strain relief connector system CFB

  • For applications with high accelerations and loads e.g., in machine tools
  • Standard screw connection
  • Customised production from 1 piece.
  • For the following energy chain systems: E4 | E6 | for all plastic-metal mounting bracket (KMA) with C profile

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Minimum gap to strain relief

Minimum gap between the strain relief and the beginning of the bend radius

Tests on our premises have shown that a strain relief component located close to the bend point of the e-chain has no adverse effect on the durability of chainflex cables. It is possible, therefore, to integrate the strain relief with the mounting bracket. We supply strain relief options, such as chainfix clamps or the space-saving tiewrap plate, for almost all e-chains.

Tested under realistic conditions, with account being taken of diverse parameters

Whether under the influence of fluids like water or oil, or at different ambient temperatures. The interaction of chainfix systems with different jacket materials of cables and hoses plays a big role in our in-house tests.


Catalogue. For more information, see the strain reliefs catalogue.

Energy chains shop. From small to medium and large energy chains for all applications.

Energy chain configurator. Design energy chains quickly and easily.

Knowledge base. Find important information, questions and answers regarding energy chains.


The terms "igus", "Apiro", "CFRIP", "chainflex", "conprotect", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "easy chain", "e-chain", "e-chain systems", "e-loop", "e-ketten", "e-kettensysteme", "e-spool", "e-skin", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "print2mold", "readycable", "readychain", "ReBeL", "robolink", "speedigus", "tribofilament", "triflex", "xirodur" and "xiros" are legally protected trademarks of the igus® GmbH/Cologne in the Federal Republic of Germany, and, where applicable, in some foreign countries.
igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosh Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mentioned on this website. The products offered by igus® are those of igus® GmbH.