SKU: 1429
$59.95 Buy Now

    The M4 is a small form factor hard-wire decoder with 2 lighting functions for HO and N scale installations. This decoder is designed for installations where space is limited.

    The M4-KAC includes a factory-installed 2-Pin Mini Connector with Blue and Black&White wires to use when connecting Keep Alive® devices with the same 2-Pin Mini Connector. Keep Alive® devices with the connector are designated as "KA(n)-C"

    Also see the KAM4, which is a M-series decoder with on-board Keep Alive®. The M4-KAC can be used in situations where the Keep Alive® device must be mounted elsewhere, and needs to be disconnected occasionally.

  • Back EMF Load Compensation:
  • Provides superior slow speed control and high performance under load.

  • Quiet Drive:
  • Super-quiet motor control for "buzz" free motor performance.

  • DC Mode:
  • Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.

  • Variable Momentum:
  • Allows you to make custom acceleration and deceleration curves.

  • Incandescent Bulb Support:
  • This decoder can be used with 12 Volt bulbs.

  • Function Remapping:
  • Buttons 0 through 12 may be used to control the lighting functions of this decoder.

  • Programmable Lighting Effects:
  • Choose from 20 separate user-programmable lighting effects!

  • Dimmable Brightness:
  • Configure multiple different brightness levels for your LED's or incandescent bulbs.

  • Decoder Lock:
  • Feature which prevents accidental/unwanted programming while activated.

  • Airwire™ Compatible:
  • Fully compatible with Airwire™ operation.

  • User-Loadable Speed Tables:
  • Configure custom speed curves and set speed limits.

    Interface Type
    Dimensions (L x W x H): 0.587" x 0.365" x 0.135" or 14.91mm x 9.27mm x 3.43mm
    Scale: HO Scale N Scale
    Continuous/Peak: 1.0/2.0 Amp
    Total Functions: 4
    Function Rating: 100 mA
    12V Outputs

    Comprehensive Guides

    One Year Goof Proof Warranty

    All decoders are covered by a one year goof proof warranty. Please return in a small box.
    You MUST register the failed decoder on our website at tcsdcc.com/warranty
    Follow the instructions on the website before returning any decoders to TCS.