Company
Service
Media library
News
Careers
Contact
KAISER GROUP
Evolution EMC
EMV Serie 85 Messing
EMV powerCONNECT
EMV Rapid Messing
EMV easyCONNECT Messing

EMC cable glands

In the industrial sector, EMC plays a particularly key role because complex machines and systems are extremely susceptible to electromagnetic interference. Such undesired EMC effects, however, can be counteracted with the effective shielding of all components. On the one hand, good shielding reduces the amount of interference emitted by an electrical apparatus while at the same time reducing its susceptibility to impaired performance due to electromagnetic effects.

Not only cables themselves but also all other components that are part of the installation must provide shielding characteristics. Cable glands thus become active components and must ensure that the quality of the shielding at sensitive interconnection points remains intact and that there are no losses in shielding attenuation. For this reason, it’s necessary to not only use a maximally shielded cable but also add EMC-compliant cable glands. Although there is no separate EMC standard for these components, they play a large contribution towards making it possible to meet the EMC characteristics prescribed by manufacturers.

  • Directives and regulations

    What, exactly, is EMC? Every electrical device generates an electromagnetic field around itself, and this field in turn can induce currents and voltages in other electrical devices. Depending on the intensity of the mutual coupling, this effect can lead to malfunctions, reduced functionality or even total failure of the equipment.

    In European Standard EN 61000, the term EMC is defined as follows: Electromagnetic compatibility is the ability of a piece of electrical equipment to function satisfactorily in an electromagnetic environment without influencing this same environment, in which other equipment is located, more than is permitted. The active and passive aspects of this definition can be more clearly illustrated with the example of a pacemaker. The operation of such a pacemaker should not in the least be compromised by environmental influences to ensure that the patient’s life is not put in danger. On the other hand, the patient himself must not be harmed by the operation of the device itself.

    Basically, a distinction is drawn between electromagnetic influences in the low-frequency and high-frequency regions. In the low-frequency region, interference arises due to the various forms of coupling (galvanic, inductive, capacitive) between two electrical circuits. In the high-frequency region starting at 1 MHz and above, in contrast, there are additional field-related coupling effects that have an effect on susceptible equipment, which can act as a sink for the interference – in other words, on receivers, electrotechnical equipment or electrical systems. Furthermore, there is a distinction between natural sources of interference such as lightning and artificial causes such as TV and radio transmitters, frequency converters and switching operations.

    When it comes to EMC, not only technical issues are of interest but also legal aspects. In general, electrical products, machines and systems are subject to various directives, laws, ordinances and regulations. The legal provisions applicable to EMC at the European level are intended to guarantee not only free movement of goods within the domestic markets but also to ensure the protection of health and safety for people as well as to protect the environment, radio operations and consumers. Therefore, within the EU, only those products can be brought to market which meet the protection regulations established in the EMC Directive (2014/30/EC). Accordingly, manufactures must design their products such that no unacceptable electromagnetic interference arises between two devices or systems, and this is to be verified with corresponding test procedures and is visible by the CE mark.
AGRO EMC cable glands.
Brochure
AGRO EMC cable glands.

EMC cable glands for interference-free cable installations.

11.1 MB
Electromagnetic compatibility (EMC) with AGRO cable glands

  • Progress® EMC powerCONNECT

    Progress® EMC powerCONNECT, with its new, advanced compression sleeve, ensures reliable 360° shield contact in a very compact unit. The direct transfer from the shielding to the cable gland’s lower part ensures extremely low transfer resistance.

    1 Low transfer resistance
    As a result of the direct contact between the cable’s shielding and the cable gland’s cone, transfer resistance is very low.

    2 High leakage currents
    Lasting high contact pressure, which results from the fixed compression sleeve and the complete tightening of the middle piece, maximises grounding of leakage currents, the extent of which is limited only by the shield’s cross-sectional area.

    3 High flexibility
    Excellent sealing performance with high flexibility. The two-part sealing inserts facilitate a large spectrum in the clamping range at a particular protection class (IP 68 / IP 69).
    Show product

  • Progress® EMC easyCONNECT nickel-plated brass

    The cable glands Progress® EMC easyCONNECT guarantees full control during installation and compensates for tolerances in shielding thicknesses to make a secure screened tap connection. The spring system provides for a very good contact of partially stripped shielding cables equally as well as for the contact of completely exposed cable shields which can be directed further.

    1 Optimal shield contact
    The powerful, protective clamping of the cable shield guarantees excellent shield contact and provides for the smallest possible transfer impedance. The shape of the contact spring not only allows for a large clamping range to the shield but also for easy disassembly without damaging the EMC braid.
    Show product

  • Progress® EMC Rapid nickel-plated brass

    The cable gland with two contact options. An integrated contact disc allows for easy and fast contact to the shield of partially stripped cables as well as of fully stripped cables which shields are being extended.

    1 Low contact resistance
    The flexible coils on the contact disc, with their large surface area, maximise the gripping surface on the braided shield.

    2 Flexible terminating methods
    If a 360° contact is required, the contact disc can be extruded and the trimmed shield can be connected to the contact bushing. The interlocking “sealing insert/contact sleeve” combination ­ensures that the contact washer continually presses on the bottom part.
    Show product

  • Progress® EMC nickel-plated brass

    Progress® EMC cable glands made of brass and with the time-proven contact sleeve make 360° contact with braided shield which terminates at the cable gland. The decisive edge geometry of the contact sleeve prevents any shearing of the braided shield.

    1 Low contact resistance
    The immense 360° contact surface ensures low contact resistance.

    2 Permanent contact pressure
    The interlocking “sealing insert/contact sleeve” combination ensures permanent contact pressure of the braided shield against the lower part.
    Show product

  • Progress® EMC Series 85 nickel-plated brass

    The patented cable glands Progress® EMC Series 85 made of brass provide an especially low-impedance connection between the braided shield and the metal cabinet as well as safe cable entry.

    1 Optimal shield contact
    The connector piece, which is secured with the help of large wrenching surfaces, enables perfect contact of the braided shield by means of a collet chuck with segments that slide together around 360°. The copper tap grants equal transmission of the compression power.

    2 Highest leakage currents
    The massive collet guarantees a concentric, low-impedance screened tap connection and handles leakage currents of up to 1.6 kA continuous – and short term to 3 kA.
    Show products

  • EVolution EMC

    The EVolution EMC cable gland ensures process-reliable and long-lasting shield connections of shielded cables in the field of electromobility. The new design allows the shield contact to be repeatedly “plugged into” the connection fitting, thus enabling the cables to be pre-assembled. Pre-assembled cable harnesses reduce installation costs, simplify production processes and are user-friendly. The system allows the cables to be prepared on site using the battery-operated AXI PRESS tool. This enables cable harnesses to be repaired and supports the flexible and precise assembly of prototypes. The EVolution EMC cable gland was specifically developed for use in electric vehicles and thus withstands the toughest demands in operation.

    1 Pressure nut
    Lead-free version in three sizes – M20, M25 and M32; Easy installation; Simply tighten to the limit (no torquing required).

    2 Sealing insert
    Highest degree of IP protection; Anti-twist protection for cable thanks to serrated surface; Wide temperature range of -40 to +140 °C.

    3 Contact sleeve and supporting ring
    The “pluggable” EMC shield contact solution ensures fast and reliable installation; High-quality 360° contact.

    4 Connection fitting
    Lead-free version in three sizes – M20, M25 and M32; Large clearance for cable lugs to pass through.
    Show product

Contact a technical adviser

Do you have any questions about our products and services? We’re happy to help. Please enter your postcode below to find the right contact person for your enquiries. In addition to the contact persons at AGRO’s head office, your local contact persons will also be displayed.

Please select the appropriate business area:

Please enter your city or zip code:

Headline SEO-Summary, H2

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.