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- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height can damage the product.
• On commercial premises, the accident prevention regulations for electrical facilities and equipment of the
relevant professional association must be complied with.
• In schools and training centres as well as at hobby and DIY workshops, the use of power packs must be
supervised by adequately trained personnel in a responsible manner.
• Please make sure by all means that your hands, your shoes, your clothing, the floor and the power pack
are dry.
• Live components may be exposed when covers are opened or components are removed, except if this
can be done by hand.
• Before opening it, disconnect the device from all voltage sources.
• Capacitors in the device may still be charged, even if the device has been disconnected from all voltage sources.
• Do not switch the switched-mode mains power supply on immediately after it has been taken from a cold
to a warm environment. Under adverse conditions, the resulting condensation could destroy the device.
Allow the device to reach room temperature before switching it on.
• The switched-mode mains power supply generates heat during operation. Make sure it is adequately
ventilated. Do not cover the ventilation apertures of the device!
• Do not leave mains power supplies and the connected consumers in operation unattended.
• Exclusively use fuses of the type and rated current specified. It is absolutely impermissible to use re-
paired fuses.
• Avoid the use of uninsulated metallic cables.
• It is impermissible to connect multiple switched-mode mains power supply units in series or in parallel.
• Power supply units are not designed for application to human beings or animals.
• Consult an expert when in doubt about the operation, safety or connection of the appliance.
• Maintenance, modifications and repairs must only be completed by a technician or an authorised repair centre.
• If you have questions which remain unanswered by these operating instructions, contact our technical
support service or other technical personnel.
b) Connected devices
• Also observe the safety and operating instructions of any other devices which are connected to the product.
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