{"product_id":"ka4-p-keep-alive-r-with-2-pin-quick-connector-harness","title":"KA4-P Keep-Alive(R) -- With 2-Pin Quick Connector Harness","description":"This KA4 Series Keep-Alive(R) device from TCS is used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA4 can power a locomotive for 1-2 seconds over dirty track and power interruptions (depending on the number of lights and efficiency of the motor). The result is that if your locomotive loses electrical contact over a long switch frog or a short stretch of dirty track, it'll keep on running as though the problem didn't exist. KA4 series Keep-Alive units are sized to fit HO and larger locos. Note: for N Scale and small HO locos check out the KA-N1 Keep-Alive. The KA4 Keep-Alive device is part of the line of \u003ca href=\"https:\/\/bit.ly\/745alldecoderandaccy2024K\"\u003eTrain Control Systems decoders and accessories.\u003c\/a\u003e","brand":"Train Control Systems","offers":[{"title":"Default Title","offer_id":53179378401645,"sku":"745-2005","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7228\/6317\/files\/745-2005_01_ea032323-0719-458f-8de8-1e689461830b.jpg?v=1774981744","url":"https:\/\/walthers.com\/products\/ka4-p-keep-alive-r-with-2-pin-quick-connector-harness","provider":"Walthers","version":"1.0","type":"link"}