Accessories
4.10 MMB300 maintenance mode box
3VA molded case circuit breakers with UL and IEC certification
354 Manual, 01/2019, L1V30435333-01
Alternatively, up to eight 3VA6 molded case circuit breakers can be connected in series with
an MMB300 maintenance mode box.
This ensures that the external status display only signals that maintenance mode is activated
when all series-connected molded case circuit breakers are in DAS mode.
It is also possible to combine the power supplies.
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