Instruction Manual for Electroblock EBL 271
8
Date: 14.02.2011 811.523 BA / EN
4 Application and functions in detail
The EBL 271 electroblock is the central power supply unit for all 12V consu-
mers in the vehicle’s electrical system. It is usually located in a cupboard or
storage area and is accessible from the front to change fuses.
EBL 271
IT.../LT...
+--
+--
Control and
display panel
Electroblock
230V AC
12V consumers
Living area battery
Starter battery
Lighting
Pump
Heater
etc.
Fig. 2 On-board power supply system
The EBL 271 electroblock contains:
F
a charge module for charging all connected batteries
F
the 12V distribution unit
F
fuses for the 12V circuits
An IT ... or LT ... control and switch panel must be connected for operation.
These devices control the electrical functions in the vehicle’s living area, inc-
luding accessories.
There is also an option to connect an additional charger and a solar charge
regulator.
Flat vehicle fuses protect the various circuits. The two D+ outputs and the
output for the refrigerator controller are exceptions. These are protected by
a Polyswitch fuse:
F
Excess temperature
F
Overload
F
Short circuit
230V AC ± 10%, 47 to 63 Hz sinusoidal, protection class I
12V outputs may be loaded with max. 90% of the rated current of the re-
spective fuse (also see front panel).
Modules
System devices
Protective circuits of the
charger module
Mains connection
Current-carrying
capacity
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