Mounting and wiring
4.6
ATEX - Special conditions
WARNING
Observe the special conditions for the intended use of Beckhoff fieldbus
components in potentially explosive areas (directive 94/9/EU)!
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Conditions
a) 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 environmental con-
ditions during use are thereby to be taken into account!
b) 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 tempera-
ture values!
c) Observe the permissible ambient temperature range of 0 - 55°C for the use of Beckhoff
fieldbus components in potentially explosive areas!
d) Measures must be taken to protect against the rated operating voltage being exceeded
by more than 40% due to short-term interference voltages!
e) The individual terminals may only be unplugged or removed from the Bus Terminal sys-
tem if the supply voltage has been switched off or if a non-explosive atmosphere is en-
sured!
f) The connections of the certified components may only be connected or disconnected if
the supply voltage has been switched off or if a non-explosive atmosphere is ensured!
g) The fuses of the KL92xx/EL92xx power feed terminals may only be exchanged if the
supply voltage has been switched off or if a non-explosive atmosphere is ensured!
h) 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!
Standards
The fundamental health and safety requirements are fulfilled by compliance with the following standards:
• EN 60079-0: 2006
• EN 60079-15: 2005
KL5151/KS5151, KL5152/KS5152
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Version: 2.0.0
