HUMMEL HSK EMC cable glands | APC Technology Group

HUMMEL HSK EMC cable glands designed to protect power units and electronic components from electromagnetic influences

Cable glands with maximum EMC protection where cable management and connection solutions are of high importance

Available from Co-Tron Components, HUMMEL's EMC cable glands fulfil a key function in EMC protection at the critical transitions to enclosures. The cable gland deflects electromagnetic waves over the housing surface according to the Faraday cage principle and thus protects the exposed cables inside the housing.

Electromagnetic interference can cause lasting disruption to the functioning of electrical equipment. Shielded cables protect the signal lines from these interference influences - but only until they are inserted into a housing or control cabinet. At these critical transitions, it is the task of the cable gland to protect the exposed lines inside the housing from electromagnetic waves. It dissipates these waves via the surface of the housing, thereby using the principle of the Faraday cage to protect the cabling and the components inside.

HSK-M-EMC-D

This premium variant has a metallised clamping body, which ensures a continuous contact with the braided shield of the cable, even in dynamic applications.

Metrica-M-EMC-E

This cable gland uses the clamping body principle. This ensures a signifi cantly shorter installation time than with conventional EMC cable glands.

HSK-M-EMC

This cable gland offers reliable protection against electromagnetic influences. It follows the classic mounting principle, in which the shield is separated and connected to the gland.

  • HSK-M-EMC: The standard version with very good shield effectiveness
  • HSK-M-EMC-D: Simple, quick fitting with maximum EMC protection
  • PVDF-variants for applications in the particularly high temperature range
  • Flex variants with integrated bending protection
  • Glands with additional tension relief (HSK-M-EMC-MZ)
  • Stainless steel variants with outstanding shielding effectiveness

In each case, HUMMEL offers different clamping areas, thread lengths, thread types and various sealing materials for different temperature ranges. The cable glands have all relevant approvals for international markets and a wide range of sectors.

The HSK-M-EMC-D is certified according to UL, cUL and NEMA. This is important for all machine and plant manufacturers serving the North American market. UL certification is virtually obligatory there, because without UL there is no insurance cover. Plant manufacturers have clear advantages if they can present certificates for all their components and assemblies. This saves time and costs on site when commissioning the machines.

The NEMA protection classes are only partially comparable with the European concept of IP protection classes. NEMA distinguishes between indoor and outdoor applications. That is why machine builders have to look very carefully. An indoor certificate for a component is of little use if the system will later be outdoors.

The EMC cable glands from HUMMEL AG are available in metric, NPT and PG thread types. Ex-versions for potentially explosive atmospheres are also available. The cable glands fulfil protection class IP68 / IP 69K.

HUMMEL cable glands offer safe EMC protection. This video shows three different EMC connection variants - in other words, the right solution for every application.

EMC cable glands protect electrical equipment from electromagnetic interference. As a premium manufacturer, HUMMEL relies here on innovative technology and high-quality materials. Therefore, users can rely on permanent protection, especially when it comes to a safe EMC connection.


Hummel is a renowned manufacturer of connection technology. Specialising in circular connectors, cable glands and cable protection systems, Hummel has its own development division and an extensive range of products - all manufactured to the highest standards to ensure quality, precision and reliability.

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