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What is the replacement for QMB3603T

Issue:
What is the replacement for a QMB3610T Series 4 QMB switch?

Product Line:
QMB panelboards sold and supported in the USA.

Environment:
Cross reference, replacement.

Cause:
Replacement for obsolete QMB3603T.

Resolution:
If the QMB panel board was built before 1961, there is no viable replacement.
If the QMB panel board after 1961, but before 1984, a QMB361T, Series D2, QMB switch may be a suitable replacement. The QMB361T requires 4.5" of panel mounting space and will require a QMB306LEX Plug-On Extension Assembly IF the existing panel is a 38" wide QW panel board or a free standing switchboard.

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