WARNING
EXPLOSION HAZARD
Do not press the reset button if there is a potentially explosive atmosphere.
WARNING
Unsuitable cables or connectors
Risk of explosion in hazardous areas
• Only use connectors that meet the requirements of the relevant type of protection.
• If necessary, tighten the connector screw connections, device fastening screws, grounding
screws, etc. according to the specified torques.
• Close unused cable openings for electrical connections.
• Check the cables for a tight fit after installation.
WARNING
Lack of equipotential bonding
If there is no equipotential bonding in hazardous areas, there is a risk of explosion due to
equalizing current or ignition sparks.
• Ensure that equipotential bonding is available for the device.
WARNING
Unprotected cable ends
There is a risk of explosion due to unprotected cable ends in hazardous areas.
• Protect unused cable ends according to IEC/EN 60079-14.
WARNING
Improper installation of shielded cables
There is a risk of explosion due to equalizing currents between the hazardous area and the non-
hazardous area.
• Ground shielded cables that cross hazardous areas at one end only.
• Lay a potential equalization conductor when grounding at both ends.
Connecting up
6.1 Safety when connecting up
SCALANCE W786-x
50
Operating Instructions, 12/2021, A5E03678337-14
Summary of Contents for 6GK5786-1FC00-0AA0
Page 8: ...Introduction SCALANCE W786 x 8 Operating Instructions 12 2021 A5E03678337 14 ...
Page 10: ...Safety notices SCALANCE W786 x 10 Operating Instructions 12 2021 A5E03678337 14 ...
Page 66: ...Maintenance and cleaning SCALANCE W786 x 66 Operating Instructions 12 2021 A5E03678337 14 ...
Page 82: ...Dimension drawings SCALANCE W786 x 82 Operating Instructions 12 2021 A5E03678337 14 ...
Page 84: ...Certification SCALANCE W786 x 84 Operating Instructions 12 2021 A5E03678337 14 ...