\documentclass[]{standalone}
\input{./tikzpreamble}

\begin{document}
\begin{circuitikz}[scale=2]

    \draw[color=black, thick]
    (0,2.8)
        to [short, *-] (-.8,2.8)
        to [voltmeter] (-.8,-.35)
        to [short, -*] (0,-.35)

    (0,3) 
    to [R, l={$R_0$}, v_>=$I_{ges}$, o-] (0,1.5)
      to [nos, *-] (0,1)
      to [R, l={$R_1$}, v_>=$I_{ret}$, -o] (0,-.5)

    (0,1.5)
      to [] (.6,1.5)
      to [nos, *-] (.6,1)
      to [R, l={$R_1$}, -] (.6,-.5)
    
    (.6,1.5)
      to [] (1.2,1.5)
      to [nos, *-] (1.2,1)
      to [R, l={$R_1$}, -] (1.2,-.5)

    (1.2,1.5)
        to [] (1.5, 1.5) node[right]{...}
    ;

\end{circuitikz}
\end{document}
