Issue:
Use Class T fuses with QMB Mains and branch switches

Product Line:
QMB Switch

Environment:
Application

Cause:
Class T fuses required in QMB

Resolution:
QMB switches that accept Class T fuses would include:
400A - QMB225WT3 (accepts 400A, 300Vac Class T fuses only)
400A - QMB325WT3 (accepts 400A, 300Vac Class T fuses only)
400A - QMB365WT6 (accepts 400A, 600Vac Class T fuses only)
600A - QMB326WT3 (accepts 600A, 300Vac Class T fuses only)
600A - QMB366W and QMB600T6 (QMB600T6 converts switch to accept 600A, 600Vac Class T fuses only)
800A - QMB327WT3 (accepts 800A, 300Vac Class T fuses only)
800A - QMB367W and QMB800T6 (QMB800T6 converts switch to accept 800A, 600Vac Class T fuses only)
See Instruction Bulletin below

Released for:Schneider Electric Canada