Tim Selders, the owner of a self-built motorhome based on a four-wheel drive Mercedes
Sprinter, is an adventurer and a perfectionist. He did a great deal of research before
deciding on the final shape of his ideal motorhome, even creating a full cardboard mock-
up of his interior design in a container.
The electrical system was subject to the same level of
consideration and scrutiny by Selders. It had to be better
and more robust than most of the systems he had seen
during many visits to motorhome exhibitions. Searching
the internet he came across Mastervolt, and ultimately had
his system designed by our engineers along with service
partner Amrit Watersort in Arnhem.
It was clear from the get-go that this electrical system
would, in addition to having reliable and solid components,
have to be exceptionally smart and have the option to
be operated from an iPad. The solution for meeting this
particular set of requirements was Mastervolt’s intelligent
network technology: MasterBus and CZone. Linking these
two network structures together via the Wireless Interface
created a flexible network with endless automation and
monitoring possibilities for Selders’ Mercedes. Together
with a balanced choice of components, this resulted in a
well thought-out power system, one that was more than
sufficient to function without mains power for quite a while.
Based on the premise that the various components can
communicate with each other, highly convenient modes
of operation were created in consultation with the owner.
This placed full control of an activity or group of activities
at the fingertips of the driver or travel companion. A good
example is the ‘Camping’ button, which launches a series
The blinds adopt a suitable position.
The window on the side door is darkened with a special
kind of film, which turns clear or dark depending on the
voltage to which it is subjected.
All internal electronics adapt to the camping position.
All system consumers can also of course be separately
switched on and off via the iPad. The tablet also provides
information about outdoor & indoor temperature and the
available drinking water and wastewater capacity.
The Selders system
Tim Selders’ Mercedes Sprinter:
not just another motorhome
“As I designed and built most of my Mercedes
camper myself, I did lots of research into the
electrical system on the internet and during
visits to exhibitions. I was looking for a better
and more robust system than anything readily
available on the market. This is how I came
across Mastervolt, and eventually had my
system setup designed by Mastervolt’s engineers
and their service partner Amrit Watersport in
TIM SELDERS, THE NETHERLANDS
OWNER OF MERCEDES SPRINTER 4X4 MOTORHOME