Am 24.06.2019 um 19:08 schrieb Ewan Tait:
The AC locos can operate across borders in much the same w as the multi-system locos.A locomotive or an EMU must fulfil at least three conditions to be able to work in a country:
1) current system (15 kV 16.7 Hz ac for Switzerland)
2) pantograph width (1450 mm for Switzerland)
3) ATP system (ETCS or EuroZUB for Switzerland)
More requirements may be added, especially about electric behaviour. For EMUs also the height of the entrance may be a criteria.
From the class 185 it was only numbers 085-150 that were fitted for Switzerland and originally only ten had ETCS.