Yes, Acti9 iC60N/H MCBs are suitable for DC applications ranging from 12VDC to 250VDC subject to the number of poles connected in series and the required breaking capacity.
The attached document shows the number of poles that are required to be connected in series in relation to the supply voltage and the breaking capacity that is achieved.
The attached document shows the number of poles that are required to be connected in series in relation to the supply voltage and the breaking capacity that is achieved.