EMAIL:
info@velmo.de

Digital track voltage:

The digital track voltage is an AC-Voltage that is supplied by the digital central to the tracks. Märklin* motors are developed for a maximum voltage of 10V.
For Z-gauge the optimal digital voltage is 12V, considering the voltage drop of the decoder.

The digital output voltages of digital central units is usually adjustable. Unfortunately, not every central unit is adustable for Z-gauge. That’s the reason why it is necessary to reduce the digital voltage of the central units.

Voltage reduction of the central’s supply voltage:

The reduction of voltage can be done by reducing the voltage supply of the digital central. The maximum track voltage of a digital central depends on it’s voltage supply.
Using the light output of the Märklin Mini Club*** transformer instead of the provided transformer of the digital central reduces the track voltage to the right level.
To supply more than just a few digital locos, it makes sense to use the more powerful transformer from Märklin*** (e.g. 6711).
Similarly it is possible to reduce the transformer’s voltage, placing a series of diodes between the transformer and the digital central (and also the booster) to reduce the track voltage.

This works with the ROCO Multimouse, the ROCO Lokmouse-2**** the Intellibox of Uhlenbrock***** and the Selectrix* centrals of Rautenhaus**

For the Trix Mobile Station* is a special component for the voltage reduction available.

Voltage Reduction of the Track Voltage:

The reduction of voltage can also be done by a series of diodes which have to be installed between the output terminals of the central unit (and also each booster) and the feeder tracks (and also the programming track). 

*) Trix Mobile station and Selectrix are registered trademarks of Trix-Modelleisenbahnen GmbH & Co. KG, D-90027 Nürnberg.

**) Rautenhaus is a registered trademark of Rautenhaus Modellbahntechnik; Bürgermeister-Mävers-Str. 2a; 28857 Syke,

***) Märklin and Märklin Mini Club are registered trademarks of  Gebr. Märklin & Cie. GmbH, Postfach 860, D-73008 Göppingen.

****) ROCO Multimouse and ROCO Lokmouse are registered trademarks of Modelleisenbahn GmbH, Plainbachstraße 4,
       A-5101 Bergheim (Austria).

*****) Intellibox and Uhlenbrock are registered trademarks of Uhlenbrock Elektronik GmbH, Mercatorstrasse 6, 46244 Bottrop.