Поиск

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

Overview IEC 60255-151:2009 is an international standard published by the International Electrotechnical Commission (IEC) that defines the functional requirements for overcurrent and undercurrent pro…

Electrical relays. Part 15: Endurance tests for electrical relay contacts - Specification for the characteris…