Design: intermediate plug for sockets, alternative with connection conductor
Childproof
Quatrature-axis component of voltage between L and N
Direct-axis component of voltage protection between L, N and earth/PE
Thermal controlled varistors in the protective circuit
Separation device will only cut-off the varistors, not the line voltage
Optical defect indication of varistor failure by overload
Protective circuit in accordance with demand classes: IEC test class: III, VDE demand class: D, E DIN VDE 0675 T.6: 1989-11/A1:1996-03/A2:1996-10 IEC 61 643-1:1998-02