@gunrunnerjohn posted:The AIU underwent several revisions, some of them have 5A relays. We had a big discussion about this several years back.
Probably patternpilot is referring to the 5 amp version. Still I would have no issue using them for powering sidings, yard tracks etc. Was the 10 amp version earlier or later? My AIU's were bought in 2016, so likely 2014-15 production.
Rod