03-27-2010, 09:49 PM
Gus, I can think of a few reasons to use one booster even if the layout is divided into districts. One reason would be cost... boosters are expensive. And if the layout normally has only one or two operators, it isn't a big deal if the whole layout shuts down on a short circuit. Now, each district should have it's own disconnecting switch, mainly for troubleshooting purposes. And of course, Digitrax makes the PM42 which takes one booster and divides it into 4 seperate districts, each with its own overcurrent protection.
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