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What is the replacement for the OLD QMB3610T Series 4 branch switch?

Issue:
Obsolete catalog number.

Product Line:
QMB branch switches 

Environment:
Products sold in the United States.

Cause:
Maintenance replacement

Resolution:
The replacement will be the Series D2 catalog number QMB363T. BUT depending on the old type of QMB panel, there might NOT be a replacement or it might require Plug-On Extension assemblies. See below
1) If the old QMB panel is a Type QM(31-Inch wide) Manufactured before 1961, there is NO replacment switch that will work. 
2) If the old QMB panel is a Type QM(31-inch wide) Manufactured after 1961 But before Oct. 1984, the QMB363T will work, WITHOUT requiring Plug-On extensions.
3) If the old QMB panel is a Type QW(38-inch wide) Manufactured before 1984 the QMB363T will work, BUT it REQUIRES the Plug-On Extension assemblies catalog number QMB310EX.

CTA-ID : 2002165

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