Operation Manual

52

7. Screw connections
These are intended for use of 12V
devices requiring a high starting
current for switching on, but which do
not otherwise consume more than 10 A
per hour.
Devices with a high starting current
could be for instance ...
- 12V vacuum cleaners
- 12V drilling machines
- 12V television sets etc.
Although these may not require more
than 10 A in operation, the fuse will
immediately trip when switched on. In
this case such devices cannot be oper-
ated on the 10 A protected motor vehi-
cle socket – but only by way of the
screw terminals described here.
a) Screw or plug connection?
The screw terminals are hollow to
accommodate so-called “banana
plugs”. If such are provided on your
device cable you can insert these in
the screw terminals from the top
instead of screw-connecting!
Danger!
Extremely high current flows are
possible here that are even
capable of heating thick cables
red hot!
However these high currents are
required for the starting of some
devices. The screw connections are
therefore...
• not routed by way of a fuse
and
• not by way of the main switch...
– voltage is present continuously!
For this reason it is imperative to
ensure that no short-circuit is
created on the screw terminals
under any circumstances!
b) Devices with fixed cable
If the cable is permanently connect-
ed with the device you can simply ...
 connect the “Positive“ core (usually
red) to the red screw terminal
 and the „Negative“ core (usually
black or blue) to the black screw
terminal.
To do so, turn the plastic cap on the
screw terminals loose, clamping the
bright cores below when retightening.
c) Devices with loose cable
If the cable is not permanently con-
nected to the device but has a bright
device plug ...
• first insert the device plug in the
jack on the device before c
onnecting the cores to the screw
terminals.
With this sequence you prevent
short-circuit hazards should the bright
connector inadvertently come in
contact with metallically conductive
objects during the connecting work.
black
red

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RZ_KH3106_Energiestation.qxd4 07.11.2003 9:27 Uhr Seite 52