Electric System - Ducati ST3 Owner's Manual

Electric system

Basic electric items are:
Headlamp consisting of the following:
12V-55W low beam unit, poly-ellipsoidal with capacitor;
12V-55W high beam unit
2 12V-3W parking lights.
Instrument panel, 12V-1.2W warning lights; 12V-2W
and 3W instrument lights.
Electrical controls on handlebar.
Turn indicators, 12V-10W bulbs.
E
Horn.
Stop light switches.
Battery 12V-10 Ah.
Generator 12V-520W.
Electronic voltage regulator (rectifier), protected by a
40 A fuse.
Starter motor, 12V-0.7 kW.
Tail light, 12V-5/21W double-filament bulb for stop light
and parking light; 12V-5W bulb for number plate light.
Note
See "Replacing bulbs" on page 73 for relevant
instructions.
92
Fuses
The main fuse box (fig. 90) is located on the frame left
side, behind the headlamp.
To access the fuse box, remove the rear guard of the
instrument panel (see page 59).
To expose the fuses, take off the box protective cover
(1). Mounting position and ampere capacity are marked
on box cover.
7 fuses are connected to the system. There is one spare
fuse.
The fuse located on a side of the battery (fig. 91) protects
the electronic regulator. Remove the fuse cap (4) to
expose it.
A blown fuse is identified by the interrupted inner
filament (5, fig. 92).
Important
Switch the ignition key to OFF before replacing
the fuse to avoid possible short circuits.
Warning
Never use a fuse with a rating other than specified.
Failure to observe this rule may damage the electric
system or even lead to fire.