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Fundamental safety instructions
3.1 General safety instructions
Electric shock due to equipment damage
Improper handling may cause damage to equipment. For damaged devices, hazardous
voltages can be present at the enclosure or at exposed components; if touched, this can result
in death or severe injury.
● Ensure compliance with the limit values specified in the technical data during transport,
● Do not use any damaged devices.
Electric shock due to unconnected cable shields
Hazardous touch voltages can occur through capacitive cross-coupling due to unconnected
cable shields.
● As a minimum, connect cable shields and the cores of cables that are not used at one end
Electric shock if there is no ground connection
For missing or incorrectly implemented protective conductor connection for devices with
protection class I, high voltages can be present at open, exposed parts, which when touched,
can result in death or severe injury.
● Ground the device in compliance with the applicable regulations.
Spread of fire from built-in devices
In the event of fire outbreak, the enclosures of built-in devices cannot prevent the escape of
fire and smoke. This can result in serious personal injury or property damage.
● Install built-in units in a suitable metal cabinet in such a way that personnel are protected
● Ensure that smoke can only escape via controlled and monitored paths.
16
WARNING
storage and operation.
WARNING
at the grounded housing potential.
WARNING
WARNING
against fire and smoke, or take other appropriate measures to protect personnel.
Equipment Manual, 09/2019, A5E47437728B AB
MCU 1720
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