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.
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).
Connecting up
5.1 Safety when connecting up
SCALANCE M826
Operating Instructions, 10/2022, C79000-G8976-C362-07
43
Содержание SCALANCE M812
Страница 10: ...Safety notices SCALANCE M826 10 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 30: ...Description of the device 3 8 PLUG SCALANCE M826 30 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 56: ...Connecting up 5 7 Replacing the PLUG SCALANCE M826 56 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 58: ...Maintenance and cleaning SCALANCE M826 58 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 62: ...Technical specifications SCALANCE M826 62 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 64: ... Figure 8 2 Side view Dimension drawings SCALANCE M826 64 Operating Instructions 10 2022 C79000 G8976 C362 07 ...
Страница 74: ...W Wall mounting 35 Wiring 24 Index SCALANCE M826 74 Operating Instructions 10 2022 C79000 G8976 C362 07 ...