Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 3) (Second Revision) which is identical with IEC 60947-3 : 2020 ‘Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Low Voltage Switchgear and Controlgear Sectional Committee and approval of theElectrotechnical Division Council.

This standard was first published as IS 13947 (Part 3) : 1993 ‘Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units’, which was identical to IEC 60947-3 : 1990. It was then superseded by IS/IEC 60947-3 : 1999 which was identical to IEC 60947-3 : 1999. It was later revised in 2018 identical to IEC 60947-3 : 2012. This revision has now been undertaken to align this standard with the latest international practices.