Product Selection and Project Engineering
8
284189 / 985160310020
2021-07-20·BA00·III·en·02
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Ex nR Control Panel
Series 9851/5
5
Product Selection and Project Engineering
Replacement or retrofit of further built-in components in the Ex nR or Ex ec enclosure part
The Ex nR control system has been planned by R. STAHL and is supplied fully ready for use,
including the built-in components such as the WiFi Access Points. The heat dissipation has
been checked by R. STAHL with respect to explosion protection and the temperature range
of the built-in components.
Replacement of the built-in components installed in the Ex nR or Ex ec enclosure part by the
user is only permissible if they are to be replaced with identical devices.
Installation of devices that do not correspond to the original project engineering always
requires the project engineering to be checked again by R. STAHL and must only be
performed after consulting R. STAHL.
Ex nR enclosure part
Changes or modifications to the Ex nR enclosure part are not permissible.
Ex ec enclosure part/connection chamber
Floor or ceiling mounting
Depending on the type, comply with the following reductions in the maximum permissible
ambient temperature compared to wall mounting (see label on the device):
• 9851/51
-
73
-
73
-
V00: 3 K
• 9851/51
-
83
-
73
-
V00: 4 K
• 9851/51
-
86
-
73
-
V00: 4 K
DANGER! Explosion caused by defective sealing of the Ex ec connection chamber!
Non-compliance results in fatal or severe injuries.
▶
Only make additional drilled holes exactly as described in the instructions in the
"Mounting and installation" chapter (operating instructions 7145/5).
Consult R. STAHL first if there are any deviations or uncertainties.
▶
Equip the enclosure only with equipment (e.g. cable entries, stopping plugs,
drain or breather valves) that is verifiably certified for use in hazardous areas.
▶
Seal unused cable entries with certified plugs (red).
▶
Seal all open drilled holes using suitable equipment.
Summary of Contents for 9851/5 Series
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