DCC Breaker Segmentation

Splitting a power district into breaker-protected sub-sections means one derailment short drops just that section — not your whole booster and every train on it. This sizes the sub-sections and checks your breaker is rated right.

The breaker must trip below the booster rating, or a short pulls the whole booster down before the breaker reacts. Size the district first with the Booster & District Sizing calculator. More on DCC power in the glossary.