Dual Rated AC/DC Circuit Breakers

Circuit breakers that have both dc ratings and ac ratings for application on either system.

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 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
  • Multi 9 - Available with dc voltage ratings from 60 Vdc to 125 Vdc
  • FA and LA – Available with dc voltage ratings from 125 Vdc to 250 Vdc
  • PowerPact® H-frame and J-frame – UL/CSA labeled for applications up to 250 Vdc

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Applications

  • Crane & Hoist
  • Solar Installations
  • OEM Commercial
  • Metals
  • Healthcare Facilities
  • Data Centers

For a complete listing of documentation for this product, please consult the Technical Library.

Brochures
Commercial and Industrial Circuit Breakers for OEM Applications 0106BR9806
Catalogs
Masterpact NW DC Circuit Breakers 0613CT0501
Data Bulletins
C60H-DC, UL1077 Supplementary Protectors (DC) 0860DB0801
DC-Rated Thermal Magnetic Molded Case Circuit Breakers 0601DB0401