Safety Cut-Out; Operating Elements - Bosch LW 20/30 E Mode D'emploi

10
electrical system (DIN 40 839,
interference emission level I)..
This means that it is possible to
charge batteries without dis-
connecting them from the vehi-
cle electrical system. (However,
exhausted batteries must be
disconnected from the vehicle
electrical system for charging.)
f Reverse polarity protection
The charging voltage remains
switched off if the polarity is
incorrect.
f Terminal short-circuit
protection
The charging voltage cannot be
switched on in the event of a ter-
minal short-circuit.
f Safety cut-out
For safety reasons the charging
voltage is switched off as soon
as a charging clip is removed
from the battery terminal.
English
f Check of rated battery voltage
Batteries can only be charged if
the corresponding
selection is made. (This voltage
check is not performed when
charging exhausted batteries.)
Faults are indicated by the red indi-
cator lamp (8).
Design
The sheet steel housing consists of
a baseplate with support feet, front
panel and cover.
The operating elements and indica-
tors are located on the front panel.
The mains connection, charging
cable entry, fan, rating plate and hol-
ders for the connecting cables and
operating instructions are located on
the rear housing panel.

Operating elements

Illustrations are provided on
voltage
the last few pages of these
instructions.
1. Battery type selector switch
Standard batteries
Maintenance-free batteries
2. Control
variable) for setting the charging
current
3. Pushbutton
for exhausted batteries
4. Plug-in module
5. Ammeter for charging current
0...20 A
6. LED display (green)
Battery is approx. 60%
charged
7. LED display (yellow)
Charging is taking place
8. LED display (red)
Fault
9. Voltage selector switch
12 V – 0 – 24 V
knob (continuously
arithm.