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To reduce the voltage on slow speed sections, e. g. narrowed curves, on building sites or down grades. Integrated 5 watt high power resistors. The value of the resistor is selectable by assignment of the connection socket from 10 - 30 ohm. Short circuit protection included by a temperature dependant switch. An overload short circuit is shown by red LED. On digital layouts only useable with unregulated locomotive decoders.
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