Phoenix Contact MSTBC connectors will no longer have all pole numbers stamped into the housing. The marking for the first pole will only be present. Any further technical data and the dimensions will remain the same. During the conversion period, both versions may be offered depending on inventory. Part Numbers Affected: 651-1726677 651-1726680 651-1726693 651-1726703 651-1808829 651-1808832 651-1808845 651-1808858 651-1808861 651-1808874 651-1808887 651-1808890 651-1808900 651-1808913 651-1808926 651-1808939 651-1808955 651-1808997 651-1809048 651-1809051 651-1809064 651-1809077 651-1809080 651-1809093 651-1809336 651-1809501 651-1809514 651-1809527 651-1809543 651-1809569 651-1809598 651-1809640 651-1809653 651-1809734 651-1809747 651-1809750 651-1809763 651-1809776 651-1809792 651-1809802 651-1809815 651-1809873 651-1852778 651-1971798 651-1971808 Please contact a Mouser Technical Sales Representative for further assistance. 5-0612-4