International Electrotechnical Commission
Glossary

EN switch-disconnector  
mechanical switching device capable of making, carrying and breaking currents in normal circuit conditions and, when specified, in given operating overload conditions. In addition, it is able to carry, for a specified time, currents under specified abnormal circuit conditions, such as short-circuit conditions. Moreover, it complies with the requirements for a disconnector.

Note1 to entry: Switch-disconnectors provide a load break isolation function. In this Technical Specification these switches will be identified on warning signs and labels as “Isolators” for simplicity in interpretation by the public.

TC/SC:82Terms     Info     Publications
Published in:IEC 62548, ed. 1.0 (2013-07) Terms     Info
Reference number:3.1.52

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