202161 / 815060300020
2016-12-13·BA00·III·en·05
Mounting and installation
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Terminal Box
Series 8150/1, Series 8150/2
6.2.1 Conductor Connection
Select suitable conductors that do not exceed the permitted heating temperature within
the enclosure.
Ensure that conductors have the specified cross-sections.
Guide the conductor insulation so that it reaches the terminals.
Do not damage the conductor when stripping the insulation (e.g. by denting it).
Attach the core end sleeves properly.
If the system is equipped with all possible terminals and live conductors, and the maximum
current load has been reached, ensure that the length of a conductor from the screw
connection to the terminal point does not exceed the diagonal planes of the enclosure.
6.2.2 Protective Conductor Connection
Always connect the protective conductor.
Use cable lugs for external protective conductor connection.
Permanently install the protective conductor close to the enclosure.
Connect all uncoated, non-energised metal parts to the protective conductor system.
Neutral conductors have to be installed as live conductors.
6.2.3 Installation Conditions
Installation conditions for creepage distances and clearances
18591E00
I =
Minimum distance from the
enclosure in accordance with
EN IEC 60079-7 standard (table)
y =
Clearance
X =
Factor in accordance with
EN IEC 60079-7 depending on
conductor cross-section
18590E00
X * I = Minimum distance
18592E00
18593E00
m =
50 mm distance between Ex e and
Ex i terminal blocks
c =
8 mm distance between Ex e and
Ex i cable lines
I I
I I
X I
*
y
I
I
m
c
