


Train Control Systems KA3 Keep Alive 2000
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Train Control Systems KA3 Keep Alive 2000TCS 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 efficiency of the motor). This Keep Alive includes a Blue and a Black w White Stripe wire to attach it to a decoder. Dimensions: 1. 02 x . 45 x . 347 or 25. 9mm x 11. 43mm x 8.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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★★★★★ 5
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Reviewed in the United States on April 3, 2026
★★★★★ 5
It fits perfectly.
Great replacement and a very good price.
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Reviewed in the United States on January 17, 2026
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Reviewed in the United States on December 15, 2025
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