Siemens SIMATIC S5 1P 243, Operating Instructions & Installation Instructions

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6.2.2 Terminal boxes with type of protection "Ex d"
With terminal boxes of protection type "Ex d", the type and size of the cable entry threads and
the type of protection are specified on the terminal box.
WARNING
No cable or line entries, piping systems, or simple designs of sealing plug may be used on
terminal boxes with the "Ex d" type of protection as the explosion protection type is no longer
guaranteed.
An explosion can result. This can result in death, serious injury or material damage.
Use only cable entries with type of protection "Ex d", that have been tested and certified in
accordance with IEC / EN 60079–1 .
WARNING
Special threads are closed with non-certified closures on delivery; this means that the type
of protection is no longer guaranteed.
An explosion may occur during operation. This can result in death, serious injury or material
damage.
Replace the closures with cable entries that have been tested and certified in accordance
with IEC / EN 60079–1.
6.2.3 Terminal boxes with type of protection "Ex e"
WARNING
If the seal of the pressure relief flap (preset breaking point) in the lower section of the terminal
box is damaged, then the explosion type of protection is no longer guaranteed.
An explosion may occur during operation. This can result in death, serious injury or material
damage.
The damaged seal may only be repaired with original sealing material.
Electrical connection
6.2 Connecting
LOHER CHEMSTAR 1PS5
Operating Instructions 03/2014
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