What is the replacement for a Series 1, QMB306T branch switch?
Issue:
Product Replacement
Product Line:
QMB Branch Switches
Environment;
Replace Obsolete Device
Cause:
Application or Maintenance
Resolution:
It will depend on the QMB panelboard age and type. But the QMB322TD Series D2 switch can be used, provided that the QMB interior was manufactured after 1961 and before October 1984. The series D2 switch will come standard with rail extensions, BUT a QMB306LEX plug-on extension kit is required if the QMB panel is a Type QW (38-inch wide) manufactured before 1984 and and has flat bus bars. For visuals of the QMB interiors see the current Supplemental Digest pages for Obsolete Panelboards.
Product Replacement
Product Line:
QMB Branch Switches
Environment;
Replace Obsolete Device
Cause:
Application or Maintenance
Resolution:
It will depend on the QMB panelboard age and type. But the QMB322TD Series D2 switch can be used, provided that the QMB interior was manufactured after 1961 and before October 1984. The series D2 switch will come standard with rail extensions, BUT a QMB306LEX plug-on extension kit is required if the QMB panel is a Type QW (38-inch wide) manufactured before 1984 and and has flat bus bars. For visuals of the QMB interiors see the current Supplemental Digest pages for Obsolete Panelboards.
Released for: Schneider Electric USA
