Locknut

Illustrated explanation

Inside a compression cable gland

5Locknut
Compression cable gland sectionA cable passes from left to right through a compression gland and enclosure wall. Callout 1 identifies the compression nut, 2 the gripping collet, 3 the sealing ring, 4 the entry thread and 5 the locknut behind the wall. The drawing is conceptual and not dimensioned. Current term: Locknut, callout 5. 1 2 3 4 5 CablePanel
  1. Compression nut

    The nut applies assembly force to the insert or seal. Use the model-specific tightening instructions.

  2. Collet

    Segmented fingers grip the cable. A gripping collet may be separate from the environmental seal.

  3. Sealing ring

    The sealing element contacts the cable sheath. Its material and diameter range belong to the complete gland.

  4. Entry thread

    The entry thread attaches the gland to the enclosure interface. Match its full designation and usable length.

  5. LocknutThis term

    The locknut secures an entry through a plain panel hole. Sealing and bonding need their own provisions.

Follow the cable through a section of a compression gland. Tightening, gripping, cable sealing and panel attachment happen at different parts of the assembly.

Conceptual section of one construction. Part order, geometry and installation requirements depend on the actual model.

ReferencesIEC 62444:2010 — Cable glands for electrical installationsIEC 60423:2007 — Conduit diameters and threads for conduits and fittings