Securing The Housing - Siemens SCALANCE M874 Operating Instructions Manual

Installation

2.1 Securing the housing

2.1 Securing the housing
Types of installation
For the device, you have the following options:
● Wall mounting (no ceiling mounting)
● Installation on a DIN rail
● Installing on the S7-300 standard rail
● Installing on the S7-1500 standard rail
Strain relief for the cables
Regardless of the type of installation, make sure that there is suitable strain relief for the
connecting cable.
Shielding of cables
If cables are installed permanently, it is advisable to remove the insulation of the shielded
cable and to establish contact on the shield/PE conductor bar.
Permitted installation direction
● Vertical installation (ventilation openings at the top and bottom)
Clearances
Keep to the minimum clearances to other components or to walls of a housing so that the
convection ventilation of the device is not blocked.
● Below at least 10 cm
● Above at least 10 cm
● With an M876, a clearance of 5 cm must be maintained between the sides and adjacent
devices.
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Operating Instructions, 06/2015, C79000-G8976-C331-05
SCALANCE M874, M876