Intended Use; Technical Description - Dometic SMP301-02 Installation And Operating Manual

Intended use

4 Intended use
The power supply unit type SMP301-02/-03 is intended for installation in recrea-
tional vehicles used as accommodation (e.g. motor homes, caravans, boats etc.).
The power supply unit is used as the voltage supply for DC consumer units, and can
be supplied with AC or DC power.
The power supply unit is approved for continuous operation.
5

Technical description

The power supply unit can be connected to an external power supply.
SMP301-03 only
The power supply unit can be connected to a battery.
The integrated priority circuit automatically switches over from battery operation to
mains operation when an external power supply is available.
In mains operation, the power supply unit supplies consumer units with a constant
DC of 12.7 V. The battery is automatically disconnected from the consumer units.
Battery operation is activated automatically if mains operation is deactivated. The
consumer units connected are supplied with energy via the battery.
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SMP301-02/-03
EN