These Driescher indoor switching devices are specifically designed for railway applications. They are in compliance with the specifications according to EN 50152-2. The 1-pole switches can be used for a rated voltage range of 15 kV to 27.5 kV, depending on the respective design, and for a rated current range of 400 A to 4000 A. References: 25 kV Madrid-Sevilla; 27,5 kV HarbinDalian, China