with switching position indicator and yellow protective shroud, twist release, acc. to EN ISO 13850, VDE 0660, sect.200, IEC/EN 60947-5-1 and IEC/EN 60947-5-5 For technical data on the appropriate contact blocks refer to following page. Mounting hole dia. 4.2 mm NOTE: The user must ensure the emergency-stop with protective shroud to be easy accessible!