Mounting and wiring
EL3632
39
Version: 2.8
Terminal housing
High Density Housing
Wire size width (single core wires)
0.08 ... 1.5 mm
2
Wire size width (fine-wire conductors)
0.25 ... 1.5 mm
2
Wire size width (conductors with a wire end sleeve)
0.14 ... 0.75 mm
2
Wire size width (ultrasonically “bonded" conductors)
only 1.5 mm
2
Wire stripping length
8 ... 9 mm
4.5.3
Shielding
Shielding
Encoder, analog sensors and actors should always be connected with shielded, twisted paired
wires.
4.6
ATEX - Special conditions (standard temperature
range)
WARNING
Observe the special conditions for the intended use of Beckhoff fieldbus components with
standard temperature range in potentially explosive areas (directive 94/9/EU)!
• 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 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 tempera-
ture data correspond to the actual measured temperature values!
• Observe the permissible ambient temperature range of 0 to 55°C for the use of Beckhoff fieldbus compo-
nents standard temperature range in potentially explosive areas!
• Measures must be taken to protect against the rated operating voltage being exceeded by more than
40% due to short-term interference voltages!
• The individual terminals may only be unplugged or removed from the Bus Terminal system if the supply
voltage has been switched off or if a non-explosive atmosphere is ensured!
• The connections of the certified components may only be connected or disconnected if the supply volt-
age has been switched off or if a non-explosive atmosphere is ensured!
• 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!
• 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 60079-0:2012+A11:2013
• EN 60079-15:2010
Marking
The Beckhoff fieldbus components with standard temperature range certified for potentially explosive areas
bear one of the following markings:
