FAQs
IEC 60255-27:2013
Measuring relays and protection equipment - Part 27: Product safety requirements
IEC 60255-26:2013
Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
IEC 60255-24:2013
Measuring relays and protection equipment - Part 24: Common format for transient data exchange...
IEC 60255-21-3:1993
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and...
IEC 60255-21-2:1988
IEC 60255-21-1:1988
IEC 60255-151:2009
Measuring relays and protection equipment - Part 151: Functional requirements for over/under...
IEC 60255-149:2013
Measuring relays and protection equipment - Part 149: Functional requirements for thermal...
IEC 60255-13:1980
Electrical relays - Part 13: Biased (percentage) differential relays
