Thanks John for clearing that up , I was having a hard time understanding how the open contacts of a mag switch could cause problems with the module . The rotax installation manual does give a 250 volt .5 amp spec for the mag switches . Granted there are quality issues out there with so much crap from china . Thankfully there is some mil spec stuff still available.
There are advantages to having both the toggle switches and the keyed switch . For the times that require motering the engine without starting it ,such a purging the oil system also no chance of bumping the starter while doing a mag check using the toggle switches