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Dual Rated AC/DC Circuit Breakers

For use on grounded or ungrounded DC systems

Designed to protect electrical systems from damage caused by short circuits

Schneider Eletric
Dual Rated AC/DC Circuit Breakers
  • Features

    Standard dual-rated ac/dc circuit breakers may be used in dc system applications and will provide thermal (overload) protection as shown on the ac time-current characteristics curve. These circuit breakers are CSA / UL Listed for application in dc systems using the instantaneous trip multiplier for the ac time-current characteristic curve. Standard ac/dc circuit breakers may be used on grounded or ungrounded dc systems.

    Related Products:

    • QO/QOB – Available with dc voltage ratings from 48 Vdc to 125 Vdc.
    • QOU – Available with dc voltage ratings from 48 Vdc to 125 Vdc
    • LA, LH – Available with dc voltage ratings from 125 Vdc to 250 Vdc
    • PowerPact H- and J-frame – UL/CSA labeled for applications up to 250 Vdc


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