EMC-compliant cable connections
Components for crimp flange system, cable clamps and blind plugs
The correct processing of shielded cables is a crucial criterion for both electrical and mechanical functionality for any EMI/ RFI shielding connector housings but also for direct cable in- and feedthrough into shielded end devices.
The connection of the cable and the cable shield to the housings must meet several essential requirements:
- A low-impedance connection between the cable shield and the housing, which remains constant over long periods of use, even under mechanical stress.
- A gap-free RF-tight sealing of the cable entry.
- Strain and torque relief with high retention forces that remains functional even under rough handling conditions.
- Simple, efficient and cost-effective processing.
With the development of crimp flange technology, Inotec has focused specifically on this critical interface and offers its customers the optimal solution for every cabling variant, including the corresponding assembly tool. Special installation
space situations or individual cable designs may however still require the use of conventional cable clamp technology. For these applications, too, Inotec has developed components specially adapted to the HF-tight full-metal housings.
The functional reliability of an entire application finally depends on cable-specific choice of the appropriate components and processing tools. For this reason, the customer- and cable-specific determination and definition of processing parameters is a crucial part of the Inotec offering and ensures safe, robust and reliable cable processing.
Crimp adaptors for MIL-type and other circular connectors
The original crimp flange technology from Inotec with 360° contacting of the cable shield can also be integrated into existing circular connector systems.
Especially in the case of connectors according to the MIL standard, electromagnetic compatibility plays a decisive role in terms of avoiding EM or RF interferences but also in terms of safety from interception. In addition, there are often very high requirements for mechanical resilience and IP protection.
For some important types of MIL connectors, Inotec has therefore developed a special crimp flange adaptor that ensures robustness and a reliable cable shield connection. The crimp flange is integrated as a pre-assembled component on these MIL-C-38999 adaptors with sprocket sleeve and union nut. Thanks to an integrated contact flange for heat shrink tubing, protection class IP67 can also be achieved without any problems.
The universally applicable CE circular adaptors according to MIL-DTL-38999 can be integrated into various connector systems with the help of the matching Inotec tool set. All adaptors are designed to be cable-specific in accordance with the Inotec crimp data definition created for the respective application.
Cable glands for crimp flange system
Special assembly tasks in machine-tool industry, plant-engineering and construction or other applications do require cables to pass directly through the enclosure wall. These feedthrough are a particular challenge with regard to EMC, as high requirements are usually placed on IP protection, but sealing against water and dust usually is an opposing requirement to cable shield grounding.
The Inotec cable cable gland uses the unique crimp flange technology for 360° contacting of the cable shield. In combination with a heat-shrinkable tubing cover, it offers IP67 protection and maximum EMI/RFI shielding at the same time.
Advantages of the crimp flange technology
- Low shielding attenuation, respectively transition resistance due to 360° contacting of the cable shield
- High tensile and torsional strength, usually above the maximum tensile strength of the cable
- No pressure on cable cores, twisting is maintained
- Quickly and reliably reproducible assembly
- HF-tight housing closure due to unique dovetail geometry
Inotec crimp data definition
Inotec offers its customers a unique service: cable-specific crimp data definition. On the basis of a cable sample, our technicians check the optimal processing parameters for reliable and simple cable processing with maximum mechanical strength and optimal cable shield connection.
Further strain relief and cable entry components
- cable clamps in different clamping widths for special cabling
- cable entry via BNC connector
- die-cast zinc components with Inotec dovetail for low transition resistance
- Standardized adaptor for MIL-C-38999
- Sealing flange for shrink tubes allows IP67 assemblies
- Various adaptors for further MIL and other circular connector standards available on demand
Universal Crimp Adaptors
- Available in 4 standard sizes
- „Design-in“ component for new development of specific circular connectors
Compact cable grommet KD3xx with integrated crimp flange
- compact design for high packing density
- sealing ring and contact surface for heat shrink tubing allow to achieve class IP67 protection
- customer-specific adaptions possible
- all the advantages of the original Inotec crimp flange technology:
- 360° shield contact
- High tensile, torsional and vibration resistance
- No compression of the internal cable wires
- Fast and reliably reproducible assembly process
Universal cable grommet KD412 (M12 thread)
- With the standardized thread size M12, the KD412-x/x is ideal for applications requiring flexibility for cabling
- The 2-piece design allows a combination with all currently available flange diameters of the CF100 in the diameter range 2.7 mm to a maximum of 8 mm (inner diameter)
