In June 2019, the new version of EN 60204-1 "Safety of machinery – Electrical equipment of machinery" was released. With respect to the standard-compliant features of industrial control cabinets, the update provides a seemingly minor, yet all the more important, change:
In the future, it requires not only a miniature circuit breaker (MCB) for protection of socket outlets in the control cabinet, but also the use of a residual current operated circuit breaker (RCCB) with a maximum rated residual current of 30 mA. Such a combination of RCCB/MCB is not a major technical issue, but it traditionally requires twice as much space in the cabinet as an MCB alone.
This white paper shows a space-saving solution which helps you to fulfil the safety requirements for hazardous situations.