I burned a “run” off an MTH RealTrax Switch, probably during a derailment. Two questions come up.
Is there any repair remedy for this problem other than replacing the Switch?
How can I prevent this in the future?
I am using an MRC Dual Power Transformer to MTH TIU to two loops of combination Lionel O27 tubular track with adapters to MTH RealTrax. Each loop has 6 blocks with 4 switches providing crossovers between the loops.
The wiring is fairly standard, MRC Transformer to TIU is protected by two 10A Fastblo fuses. The outut of the TIU is connected to 12 block relays controlled by Outside rail Isolated Track Switches. The output of the relays fan out via terminal blocks to each block. MTH Switch Power is 14vac from the MRC Transformer. I have not blown any fuses in the TIU or the 10A Fastblos and have had no Circuit Breakers open on the MRC Transformer during the time span in question.
As I hope you can see, it was the center rail that overloaded. It seems I don’t really have any overcurrent protection if this can happen.
Suggestions appreciated, Dick
