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5. Features and functions
• The SPS 1525 PFC and SPS 1540 PFC mains power supply units use switching network technology with the
advantages of weight and size reductions. Switched-mode mains power supply unit use chopped mains voltages
and return a broad spectrum of harmonic waves to the mains line, which may cause interference in other devices.
To suppress these harmonic waves, a PFC (Power Factor Correction) has been integrated in the product.
• The dc output is dc-isolated and features a fuse disconnector to the mains voltage.
• The output voltage can be adjusted by means of the adjustment control (6) from 3 V to 15 V/DC or for the SPS 1560
from 1V – 15Vm; current limitation is not possible.
• A special feature of the models SPS 1525 PFC und SPS 1540 PFC is a fixed voltage switch on the underside of
the device to fix the output voltage to 13.8 V/DC.
• The secondary DC connection is effected through two coloured connection jacks.
• For the switched-mode power supply SPS 1560 PFC up to 5A can be collected at the front side and up to 60A at
the rear.
• The mains power supply is cooled via a temperature-controlled fan. For this reason, make sure there is an ad-
equate air circulation and lateral distance to obstacles.
• The mains power supply is equipped with an overload protection circuit. This circuit is activated when the maxi-
mum permissible current is exceeded due to an overload or short circuit. The red indicator is the overload indicator.
If it lights up, the consumer must be disconnected from the mains power supply to avoid damage to the switched-
mode mains power supply.
6. Safety instructions
Read the operating instructions carefully and especially observe the safety information. If you do
not follow the safety instructions and information on proper handling in this manual, we assume
no liability for any resulting personal injury or damage to property. Such cases will invalidate the
warranty/guarantee.
a) General information
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become dangerous playing material
for children.
• Protect the appliance from extreme temperatures, direct sunlight, strong jolts, high humidity, moisture,
flammable gases, steam and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and protect it from any
accidental use. Safe operation can no longer be guaranteed if the product:
- is visibly damaged,
- is no longer working properly,
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