EN 50155:2017

Railway applications - Rolling stock - Electronic equipment EN 50155:2017

Publication date:   Feb 14, 2018

General information

60.60 Standard published   Oct 13, 2017


CLC/TC 9X Electrical and electronic applications for railways

European Norm

45.060.01   Railway rolling stock in general



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This European Standard applies to all electronic equipment for control, regulation, protection, diagnostic, energy supply, etc. installed on rail vehicles.
For the purpose of this European Standard, electronic equipment is defined as equipment mainly composed of semiconductor devices and recognized associated components. These components will mainly be mounted on printed boards.
Sensors (current, voltage, speed, etc.) and Semiconductor drive unit (SDU) for power electronic devices are covered by this standard. Complete Semiconductor drive unit (SDU) and power converters are covered by EN 61287 1.
This European Standard covers the conditions of operation, design requirements, documentation, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for compliant and reliable equipment.
Specific requirements related to practices necessary to ensure defined levels of functional safety will be determined in accordance with relevant railway safety standards.
The software requirements for on board railway equipment are specified by EN 50657.

Related legislation

Legislation related to this standard


DIRECTIVE 2008/57/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 June 2008 on the interoperability of the rail system within the Community (Recast)

Life cycle


EN 50155:2017
60.60 Standard published
Oct 13, 2017


EN 50155:2021