ENGLISH
Product description
The DC-DC converter MAGIC converts a DC-voltage into
another stabilized DC-voltage with a full galvanic isolation
between the input and output.
Applications
It offers you the following applications (see drawings
“INSTALLATION”):
MAGIC 24/12-20A (part no. 81300100)
• Drawing 1A, 1B: a stabilized 13.6V DC power supply
/ single stage float charger (e.g. to supply 12V
equipment from a 24V system), or
• Drawing 2A, 2B: a three-stage battery charger to
charge a 12V battery from a 24V system fully
automatically, or
• Drawing 3A, 3B: a 24/36 converter without galvanic
isolation, where the input is connected in series with
output.
• Drawing 4: a dimmer for 12V lights
MAGIC 24/24-20A (part no. 81300200)
• Drawing 1A, 1B: a 27.2VDC stabilized DC power
supply / single stage float charger (e.g. for a galvanic
isolation of the vehicle’s electrical system)
• Drawing 2A, 2B: a three-stage battery charger to
charge a 24V battery from a 24V system fully
automatically, or
• Drawing 3A, 3B: a 24/48V converter without galvanic
isolation, where the input is connected in series with
output.
• Drawing 4: a dimmer for 24V lights
MAGIC 12/12-20A (part no. 81300400)
• Drawing 1A, 1B: a 13.6VDC stabilized DC power
supply / single stage float charger (e.g. for a galvanic
isolation of the vehicle’s electrical system)
• Drawing 2A, 2B: a three-stage battery charger to
charge a 12V battery from a 12V system fully
automatically or
• Drawing 4: a dimmer for 12V lights.
MAGIC 12/24-10A (part no. 81300300)
• Drawing 1A, 1B: a 27.2V stabilized DC power supply
/ single stage float charger (e.g. for a galvanic
isolation of the 24V system), or
• Drawing 2A, 2B: a three-stage battery charger to
charge a 24V battery from a 12V system fully
automatically, or
• Drawing 3A, 3B: a 12/36V converter without galvanic
isolation, where the input is connected in series with
output.
Safety regulations and measures
1. Install the converter according to the stated
instructions.
2. Never use the converter at a location where there is
danger of gas or dust explosions.
3. Connections and safety features must be executed
according to the locally applicable regulations.
4. The converter may only be taken into operation while
the cover is closed as lethal voltages may exist.
The converter is provided with a non-replaceable input
fuse. If the plus and minus connections on the battery are
exchanged, the converter will become irreparable.
Do not use fuses larger than those indicated in the
specifications.
Installation
• Be sure that the output of the supplying source is
switched off during installation. Also be sure that no
consumers are connected to the batteries during
installation, to prevent hazardous situations.
• Check that the battery voltage is the same as the
converter’s input voltage (e.g. 24V battery for a 24V
input voltage). Also check that the output voltage
satisfies loading requirements
• Due to possible moisture accumulation and optimal
heat discharge, the converter must be installed in a
well-ventilated room protected against rain, vapour,
moisture and dust. We advise to mount the unit in a
vertical position with the connecting cables downward.
• Integrate a fuse in the positive wiring and place it
nearby the battery. See specifications for the
recommended fuse.
• Do not install the DC-DC converter straight above the
batteries because of possible corrosive sulphur
fumes.
Settings
There is no need to change the settings if the converter is
used as a stabilized DC power supply. Inside the
converter four DIP switches can be found to adjust the
converter according to your personal preferences. (see
table “DIP SWITCH SETTINGS”).
To adjust the DIP switches, proceed as follows:
1. Be sure the converter is disconnected from any
power source;
2. Remove the back cover of the converter by loosen
the four screws (see drawing “DIMENSIONS”);
3. Use a small flat-blade screw driver to change the
DIP-settings;
4. Remount the back cover again.
When more converters are paralleled to increase the total
output current, DIP-switches 1, 2 and 4 must be set to
the “OFF”-position and DIP-switch 3 depended to the
preferred output voltage.
