Issue:
DC Trip Curve for QO/QOB breakers.

Product Line:
Circuit Breakers

Resolution:
Thermal-magnetic circuit breakers on DC systems retain their thermal tripping characteristics (same value as Vac). But for the magnetic part, a multiplier must be applied to the AC magnetic level to determine an equivalent DC trip level.

Multiplier on Magnetic Settings for LA/LH:
Hi Setting = 1.2
Lo Setting = 1.3

Released for:Schneider Electric Canada