IEC 62061:2021

Safety of machinery - Functional safety of safety-related control systems

IEC 61140:2016

Protection against electric shock - Common aspects for installation and equipment

IEC 60447:2004

Basic and safety principles for man-machine interface, marking and identification - Actuating principles

IEC 60947-5-5:1997

Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function