BECKHOFF KL3041 - Manual (Page 7)

ATEX - Special conditions
KL304x and KL305x 5
ATEX - Special conditions
Observe the special conditions for the intended use of
Beckhoff fieldbus components in potentially explosive areas (directive 94/9/EU)!
WARNING
• The certified components are to be installed in a suitable housing that guarantees
a protection class of at least IP54 in accordance with EN 60529! The environ-
mental conditions during use are thereby to be taken into account!
• If the temperatures during rated operation are higher than 70°C at the feed-in
points of cables, lines or pipes, or higher than 80°C at the wire branching points,
then cables must be selected whose temperature data correspond to the actual
measured temperature values!
• Observe the permissible ambient temperature range of 0 - 55°C for the use of
Beckhoff fieldbus components in potentially explosive areas!
• Measures must be taken to protect against the rated operating voltage being ex-
ceeded by more than 40% due to short-term interference voltages!
• The individual terminals may only be unplugged or removed from the Bus Termi-
nal system if the supply voltage has been switched off or if a non-explosive at-
mosphere is ensured!
• The connections of the certified components may only be connected or discon-
nected if the supply voltage has been switched off or if a non-explosive atmos-
phere is ensured!
• The fuses of the KL92xx power feed terminals may only be exchanged if the sup-
ply voltage has been switched off or if a non-explosive atmosphere is ensured!
• Address selectors and ID switches may only be adjusted if the supply voltage has
been switched off or if a non-explosive atmosphere is ensured!
Operation of the Bus Terminal System in potentially explosive areas (ATEX)!
Note
Pay also attention to the continuative documentation
Notes about operation of the Bus Terminal System in potentially explosive areas (ATEX)
that is available in the
download area of the Beckhoff homepage http://www.beckhoff.com !