Composite backshell supports open wire bundles

The Single Arm composite backshell developed by Sunbank is designed to offer a robust performance for defence, aerospace and other harsh environment applications. It was designed to protect cable connections from damage and provide better strain relief in different scenarios.

The Single Arm backshell family is available in three configurations: straight, 45 degree and 90 degree angles. It is designed to satisfy requirements for all sizes of MIL-DTL-38999 Series I, II, and III connectors.

In addition to providing support and strain relief to open wire bundles, it also offers a reliable grounding option with its solderable ground lug. It can also support different plating combinations to suit specific applications.

The Single Arm is also designed to be economically cost-effective but highly reliable, with high grade thermoplastic materials intended for critical applications and environments, especially on military and commercial EWIS applications that require weight per part savings, corrosion resistance and EMI protection.

According to Souriau-Sunbank, the Single Arm connector has many advantages compared to its die casted metallic counterparts. The composite is high grade engineered thermoplastic which is not prone to electromagnetic disturbance, and is stronger in terms of vibrations due to less harmonic resonance because of the weight reduction – it weighs 40 per cent less compared with aluminium. The weight savings of the backshell will have a positive impact on the total weight of the electrical system, notes Souriau-Sunbank and will contribute to fuel savings and a lighter environmental footprint in the aircraft.

The Single Arm technology also provides the benefits of detent self-locking, a ratcheting coupling ring using non-corrosive clips located within. The audible ratcheting noise during the installation process guarantees correct engagement.

Souriau-Sunbank specialises in interconnect solutions engineered to withstand the harshest of environments (aeronautics, space, defence, transport, energy, industrial equipment, healthcare devices, and lighting). It invests in R&D and manufacturing facilities to produce solutions that comply with environmental requirements and international trade rules. Its range of products is suitable for use in non-hazardous environments as well as extreme temperatures, strong vibrations and corrosive liquids and meet specific international market standards.

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