IEC 62505-2:2016 is applicable to single-pole, two-pole and three-pole alternating current (AC) disconnectors, earthing switches and switches which are designed for indoor or outdoor fixed installations in tractions systems, and operated with an AC line voltage and frequency as specified in IEC 60850. The main changes with respect to the previous edition are as follows:
- reflect the latest versions of standards referenced and remove text already included in the IEC 62271 series;
- rework Table 1 according to the changes of IEC 62497-1:2010.

This publication is to be read in conjunction with IEC 62271-1:2007, IEC 62271-102:2001, and IEC 62271-103:2011.