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.
KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the efficiency of the motor).
This Keep-Alive™ includes a blue and a black w/ white stripe wire with which to attach it to a decoder.
Dimensions: .52” x .52” x .45” or 13.22mm x 13.22mm x 11.55mm.
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