IEC 60255-149:2013

Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays

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 (COMTRADE) for power systems

IEC 61812-1:2011

Time relays for industrial and residential use - Part 1: Requirements and tests

IEC 60255-127:2010

Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection

IEC 60255-151:2009

Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection

IEC 60255-1:2009

Measuring relays and protection equipment - Part 1: Common requirements

IEC 61810-7:2006

Electromechanical elementary relays - Part 7: Test and measurement procedures

IEC 60255-21-3:1993

Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests

IEC 60255-21-2:1988

Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests

IEC 60255-21-1:1988

Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)

IEC 60255-12:1980

Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities

IEC 60255-13:1980

Electrical relays - Part 13: Biased (percentage) differential relays