Electrical switch combined with fluid control device

An electrical switching device, comprising

• a casing,
• a control member movable in said casing along a predetermined path,
• a conductive contactor mounted on said control member and movable therewith,
• said contactor having first and second contact points movable along first and second paths,
• said casing having an electrically insulating wall opposite said contactor,
• and first and second elongated conductive contact bar members mounted on said insulating wall opposite said contactor,
• said first contact bar member extending along said first path and being engageable by said first contact point on said contactor,
• said first and second contact bar members having first and second segments thereon projecting laterally in opposite directions into said second path and disposed alternately along said second path for successive engagement by said second contact point on said contactor,
• said first and second segments having a narrow gap therebetween of less width than the width of said second contact point whereby said second contact point will ride between said first and second segments without engaging said insulating wall to avoid burning of said insulating wall and to avoid contamination of said second contact point by said insulating wall.