11384850.09 EN/DE 02/2019
WIKA Operating instructions / Betriebsanleitung WUC-1x
11
Electrical connection
WARNING!
Connect the enclosure to ground through the process connection, against electromagnetic fields and electro
-
static discharge.
WARNING!
Specific conditions for safe use in explosive atmosphere
■
External earthing connection shall be established by end-user via pressure connection minimum 4 mm²
required. External earthing connection shall be corrosion resist and locked against rotation.
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The connector provided by the end user in the end use application shall be in accordance with all applicable
clauses of IEC 60079-0 and IEC 60079-15. A minimum degree of protection IP54 according to IEC 60529 shall
be ensured.
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Cable provided by end-user shall be suitable for the ambient temperature.
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The Sub-D version has to be installed in a way that it is protected against an impact energy > 4 J. The connec-
tor as well as the corresponding sealing are provided by the end user in the end use application and shall be
in accordance with all applicable clauses of IEC 60079-0 and IEC 60079-15. A minimum degree of protection
IP54 according to IEC 60529 shall be ensured.
■
For use under NEPSI conditions:
- The connector provided by the end user in the end use application shall be in accordance with all applicable
clauses of GB3836.1-2010 and GB3836.8-2003. A minimum degree of protection IP 54 shall be ensured.
- Obey the warning “Do not separate when energized”.
7. Starting, operation
EN
