There is a big issue with using any AC switch on a DC circuit - beware.
AC switches have a small gap, slow break because the alternating current
breaks the spark. Use it on DC and the voltage is constant in one direction so the arc
does not break quickly. Contacts will pit and could well together in a short, or long, time.
By all means use it if it works, but do not expect 10 years service
with no risk.