I have a motor that is running off bridge-rectified mains voltage. There are no filtering capacitors across the rectifier output. When figuring the ratings needed for any switches in series with the motor, would I use the AC or DC ratings of the switch? My understanding is the biggest difference in the ratings between AC and DC switching for contacts is that the lack of a zero voltage/current diminishes the ability of the arc to break, hence why DC switching ratings are less than the AC ratings for a given set of contacts. However, in this application, I still have the zero voltage/current so therefore I think I can use the AC ratings. Am I correct?