Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI images rather than photographs
Cobalt REX is an infinitely flexible set of add-on changeover relays that can be operated all at once or in pairs. Cobalt REX can be used with “normally open” or “normally closed” type switches, triggered by detectors and other things. Cobalt REX is very easy to use and totally configurable to meet almost any need…
Combine REX and Cobalt-S switches or Cobalt motors and there are NO limits to the control abilities, interlocking or any sort of direct device automation!
If you want to make REX DCC-addressable, simply add an AD1HP to switch multiple devices with a single digital command!
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DCC Concepts Cobalt Relay Extension Board (manufacturer part number DCP-REX) is an add‑on set of changeover relays intended for model railway digital command control (DCC) systems. The board can operate all relays together or in pairs and is compatible with normally open or normally closed switches, detectors and similar inputs.
The unit is fully configurable and can be combined with Cobalt‑S switches or Cobalt motors to provide interlocking and direct device automation. When fitted with an AD1HP accessory the relays become DCC‑addressable, allowing a single digital command to control multiple devices.