In this particular case the configuration is as follows:
Components:
1 Ex d illuminated push button red 1NC
1 Ex d illuminated push button green 1NO
i Ex d illuminated push button blue 1NO
1 Ex d 3-way selector switch 2NO
1 Ex d potentiometer 10k
1 Ex d emergency stop 2NC with ring
1 M25x1,5 cable entry
THE DIFFERENT AVAILABLE VERSIONS ARE DETAILED IN THE DATA SHEET