The RS is an off-load switch, electrically operated, and designed to be installed outdoors on the roof of railway electric traction vehicles, including locomotives, trains and EMUs. The RS is available in three main executions: change-over switch, disconnect switch, as well as disconnect and earthing switch. It is suitable for single-voltage as well as for multi-voltage vehicles, covering all the usual line voltages (1.5 kVdc; 3 kVdc; 15 kVac and 25 kVac) as well as the different currents rated from 1000 A to 4000 A. With its multiple variants and options, the RS switch covers most of the vehicle's applications, and can also be customized to match specific requirements and environment.