Numbers on Module are suggested part numbers for Kato Track
The Branchline Module is a triple straight module with deeper depth to accommodate turn-outs off one track to a branch line. The illustration below shows how this can be used to branch off from the outer or inner track.
The KATO Unijoiner track connectors are used to align and attach adjacent modules to each other.
Branchline Modules do not have mounting holes for electrical connector or sky boards.