IEC 60947-5-1 Revised
IEC 60947-5-1:1997/AMD2:1999
Amendment 2 - Low-voltage switchgear and controlgear. Part 5: Control circuit devices and switching elements - Section One: Electromechanical control circuit devices
CHF 20.-
A more recent version of this publication exists: IEC 60947-5-1:2024