Last Updated: 16 June 2025

Kato Class 800 Light Function Decoder Install Guide

Buy Kato N Gauge Class 800 DCC Conversion Service from £20.00

This guide covers all versions of the Kato N Gauge Class 800 models, which are identical other than the liveries applied:

It may also be suitable for the following similar models:

  • MODEL VARIANT(S)

Step 1 - Remove Decoder Cover

Turn the driving car upside down and unclip the cover.

Install Kato Class 800 FL12 light function DCC decoder

Step 2 - Fit Decoder

Orientate the decoder so that the side with two contact points at the top and bottom is showing, and the small black chip is towards the back of the model.

Slide the decoder in, making sure it goes all the way in and that it is over the copper spring, not below.

Install Kato Class 800 FL12 light function DCC decoder Install Kato Class 800 FL12 light function DCC decoder Install Kato Class 800 FL12 light function DCC decoder

Step 3 - Refit Decoder Cover

Clip the decoder cover back on, and test it on your programming track.