WARNING
Insufficient isolation of intrinsically safe and non-intrinsically safe circuits
Risk of explosion in hazardous areas
• When connecting intrinsically safe and non-intrinsically safe circuits, ensure that the
galvanic isolation is performed properly in compliance with local regulations (e.g. IEC
60079-14).
• Observe the device approvals applicable for your country.
Notes for use in hazardous locations according to ATEX, IECEx, UKEX and CCC Ex
If you use the device under ATEX, IECEx, UKEX or CCC Ex conditions you must also keep to the
following safety instructions in addition to the general safety instructions for protection against
explosion:
WARNING
Transient overvoltages
Take measures to prevent transient overvoltages of more than 40% of the rated voltage (or
more than 119 V). This is the case if you only operate devices with SELV (safety extra-low
voltage).
WARNING
Take measures to prevent transient voltage surges of more than 40% of the rated voltage. This
is the case if you only operate devices with SELV (safety extra-low voltage).
WARNING
Suitable cables at high ambient temperatures in hazardous area
At an ambient temperature of ≥ 60 °C, use heat-resistant cables designed for an ambient
temperature at least 20 °C higher. The cable entries used on the enclosure must comply with
the IP degree of protection required by EN IEC / IEC 60079-0, GB 3836.1.
General notes on use in hazardous areas according to UL-HazLoc
If you use the device under UL-HazLoc conditions, you must also adhere to the following safety
notices in addition to the general safety notices for protection against explosion:
WARNING
WARNING - EXPLOSION HAZARD -
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
Connecting up
6.1 Safety when connecting up
SCALANCE W786-x
Operating Instructions, 12/2021, A5E03678337-14
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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 ...