Installation Conditions - Stahl 8146/5-V37-Serie Betriebsanleitung

6.2.2 Installation Conditions

Installation conditions for creepage distances and clearances
Distances, creepage distances and clearances
▶
When installing components, the creepage distances and clearances between the
individual components, as well as between the components and the enclosure walls,
must be sufficiently dimensioned. Observe the values from the EN IEC 60079-7 standard
(table) when doing so.
▶
Check the creepage distances of the components and comply with them according to the
specifications in the respective operating instructions.
▶
Comply with the clearance distances, depending on the rated operational voltage of the
fitted terminals.
▶
Observe the distance between the enclosure cover and terminal screws of the built-in
components (with the conductor connected). It must be at least the value of the required
clearances.
147924 / 8146647300
2022-11-23·BA00·III·en·13
X I *
I = minimum distance from the enclosure
in accordance with EN IEC 60079-7
(table)
y = clearance
X = factor in accordance with
EN IEC 60079-7 depending on
18591E00
conductor cross-section
X * I = minimum distance
18590E00
18592E00
m = 50 mm distance between Ex e and
Ex i terminal blocks
c = 8 mm distance between Ex e and
Ex i cable lines
18593E00
Safety switch/load disconnect switch
Series 8146/5-V37, Series 8150/5-V37,
Series 8146/5-V11, Series 8150/5-V11
Mounting and Installation
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