DELTA-contact system

Patented DELTA-contact system

Three functional elements:

  1. Sacrificial electrode:

    – controlled arc guidance
    – no erosion of the main contacts

  2. Line contacts:

    – maximum contact pressure 
    – low contact resistance

  3. Short-circuit interlock:

    – high switching capacity up to AC23B
    – high short-circuit making capacity up to 120kA