94 85 2 502 408-3 CH-SBB (Twindexx IR 100).
The four-car units of class 502.4 are used to form 12-car trains
together with a 502.0 (IC 200) or 502.2 (IR 200).
Zürich HB. 2022-02-21.
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<a href="mailto:tbk.uncia@gmail.com">tobias b k&ouml;hler</a>