The document introduces the complete range of Siemens surge arresters for railway applications. Detailed information about the outstanding 3EB and 3EC product lines can be found here.
The catalogue describes Siemens' complete portfolio of medium‑ and high‑voltage surge arresters for railway power‑supply systems. It includes standard product lines such as 3EB, 3EC, 3EQ, 3EP and 3EL as well as customized solutions for voltages from 300 V up to 800 kV AC/DC and for various environmental conditions.
Technical data, voltage ratings, and application notes are provided for each type, together with guidance on the VDV A2 surge‑arrester concept for DC railways and the relevant DIN EN 50163 standard for supply‑voltage definitions.
| Nominal voltage range | >59 V to 25 000 V |
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Supply voltages are defined in the DIN EN 50163 standard (VDE 0115 part 102).
It is a recommendation from the German Association of Transport Companies (VDV) for DC railway systems, specifying surge‑arrester types and installation points to protect against lightning‑induced overvoltages.