8BU Range – 8,700 volts | 800 amp | High Voltage Couplers

Rated for 800 amps with an operating voltage of 8,700 volts, the 8BU has an ingress protection rating of IP68.

In service since 2008, the 8BU is suitable for use in Non-Ex operational environments, such as opencast and metalliferous mining. Inspired by the design of the 15BKA 4-Bolt coupler, the 8BU was developed with the intention of creating a physically smaller coupler with a lower operating voltage. When closing the coupler system, the guide pin of the 8BU becomes enclosed in the body casting, protecting it from external damage. Requiring just four bolts to open and close the coupler system, this feature allows for faster installation and maintenance times.

Contact us

  • Features

    • LED Live Line Indicator
    • IP68
    • Solid face and body casting
    • Silicone Phase Connectors
    • Higher mPa Aluminium Material
    • Enclosed guide pin
    • Detachable Adaptor Flange
    • Earth Pilot Connector
    • Handles
    • All air expelled on joining
    • Silicone seal for face
    • Full phase to phase segregation with earth
    • Arc extinguishing Phase Insulators
    • Genderless design
  • Accessories

    • Adaptor – Gear Mount
    • Cast Protection Cover
    • Silicone Phase Connectors
    • Crimp Contacts
    • Gland – Armoured
    • Gland – Unarmoured
    • Insulated End Cover
    • Slide Hammer
    • Coupling Tool
    • CAT Skid

Technical Information

  • Specs

    Volts 8,700
    Amp 800
    LOA (mm) 640
    Weight (KG) 17.5
    Material Aluminium
    Volume (Litres) 3.1


    Download 8BU Range Dimensions

    Download 8BU Range (Key) Dimensions

    Download Test Report


  • Test Results

    Referenced to AS/NZS 1300:2009
    Through Fault Current at 10 minute intervals 3 Tests of 20kA for 0.3 second
    1 Test of 20ka for 1.0 second
    AC HV Withstand 19.4kV for one minute
    Temperature Rise 800 amp for 5 hours with stable temperature within percentage of ambient temperature
    Ingress Protection IP68