@Long Hair posted:3000 mA
Ok then to summarize operation of the LionChief 18VDC transformers mentioned previously in this topic with FasTrack Uncoupler 6-12020:
36Watt (2000mA) doesn't work at all
41.4Watt (2300mA) usually doesn't work even without any other Locos or powered cars and accessories
54 Watt (3000mA) may sometimes work depending on what else is also drawing power at the same time.