DIN EN 60255-11:2010 Measuring relays and protection equipment - Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port (IEC 60255-11:2008); German version EN 60255-11:2010
2014DIN EN 60255-26:2014 Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements (IEC 60255-26:2013); German version EN 60255-26:2013 + AC:2013
2010DIN EN 60255-11:2010 Measuring relays and protection equipment - Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port (IEC 60255-11:2008); German version EN 60255-11:2010