Electroblock EBL 220-4 A / EBL 220-4 with OVP instruction manual
10
Issued: 21.06.2010
811.592 BA / EN
Flat vehicle fuses are used to protect the various circuits. The only excep-
tions are the step and the frost protection valve
F
Overtemperature
F
Overload
F
Short circuit
230 V AC voltage
±
10 %, 47 -- 63 Hz sinewave, protection class I
12 V outputs shall only be loaded up to a maximum of 90 % of the rated
current of the associated fuse (see installation instructions or front plate).
4.1
Battery functions
6-cell lead-acid or lead-gel batteries from 55 Ah upwards
Simultaneous starter battery and living area battery charging via alternator,
parallel battery switching via an isolation relay
Battery isolation (activated from the DT/LT ... control and switch panel) cuts
off the following connections from the living area battery:
F
All 12 V consumers
F
The frost protection valve
This prevents the living area battery from being slowly discharged by closed-
circuit current whilst closing down the vehicle.
The batteries can still be charged using the Electroblock, the alternator, an
auxiliary charging unit or the solar charger, even when the battery isolation is
activated.
The switching option provided by the battery selector switch ensures opti-
mum charging of the two different types of battery, lead-acid and lead-gel.
The battery monitor of the control and switch panel DT/LT ... with dynamic
voltage wave continuously monitors the living area battery. It switches off
“earlier” with small discharge currents than with large ones. This enhances
the total discharge protection. Monitoring also occurs when the device is
switched off. Depending on the current consumption, a warning message is
displayed once the value falls below 12 V.
If the living area battery voltage continues to drop and falls below 10.5 V, the
battery monitor immediately switches off each 12 V consumer. The control
and switch panel also switch off automatically. Only the anti--freeze valve is
still supplied with current to ensure that it remains closed. Prior to shutdown,
all the switching states and the battery capacity value are stored and
restored after switching on.
If an overload or an insufficiently charged living area battery causes the vol-
tage to fall so low that the automatic disconnection is triggered, any consu-
mers which are not essential should be switched off.
Protective circuits
Mains connection
Current-carrying
capacity
Suitable batteries
Battery charging
whilst driving
Battery isolation
Battery selector switch
Battery monitor with
automatic disconnection
