Last Updated: 1 January 2025

Union Mills Class 2P DCC Conversion

Mistakes may damage your locomotive, controller or other accessories. Use a multimeter to make absolutely sure you have completely isolated the motor from the track before testing. Always use the Programming Track for testing. Our guides are provided for reference only, and you proceed entirely at your own risk. Unsure about something - try our DCC Conversion Service instead.

Order Your Conversion Now

This guide covers the Union Mills Class 2P models, including:

  • Union Mills Class 2P BR Black 40563

There isn't enough room in the tender to fit even the smallest decoder without milling out some of the metal. The recommended method is instead to run three black wires from the tender to the loco, and install the decoder in the cab.

Refer to the Union Mills J39 (old chassis) guide for the detailed step-by-step guide, the process is the same for this model.

Convert Union Mills Class 2P loco to DCC

Our DCC Conversion Service