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With Black w/ White Stripe wire and Blue wire for power.


The Keep Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA3 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the effciency of the motor). This KA3 will work with Keep Alive® ready decoders and most non-TCS decoders. TCS decoders manufactured after February 2012 are Keep Alive® ready.


Dimensions: 25.9mm x 11.43mm x 8.81mm

Scale: HO Scale N Scale

Input Rating: 12 to 16V

TCS KA3 Keep Alive®

SKU: TCS-2000
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