Mounting Positions And Type Of Fixation - Siemens SIMATIC HMI Mobile Panel 277 RO Operating Instructions Manual

Climatic ambient conditions for the connection box
The following table shows the permitted climatic ambient conditions for use of the connection
box.
Ambient conditions
Temperature, operation
Temperature, storage/transport
Relative humidity, operation
Relative humidity, storage /
transport
Atmospheric pressure
Pollutant concentration
3.2

Mounting positions and type of fixation

Mounting position
The wall-mounting bracket is designed for vertical mounting.
The connection box is designed for surface mounting independently of cabinets or control
panels.
The connection box is self-ventilated and is approved for all mounting positions. Note that
the guaranteed protection rating is only ensured if the connecting cable or the dummy cap is
plugged into the connection box.
Mobile Panel 277 RO
Operating Instructions, 10/2015, A5E36824256-AA
3.2 Mounting positions and type of fixation
Permitted range
From 0 to 50 °C
From –20 to 70 °C
35 % to 85 %
1080 hPa to 795 hPa
SO < 0.5 ppm
2
Relative humidity < 60%,
no condensation
H S: < 0.1 ppm;
2
relative humidity < 60%,
no condensation
Planning application
Comments
Without condensation, corresponds
to relative humidity, stress level 2 in
accordance with IEC 61131, part 2
Corresponds to an elevation of
–1,000 to 2,000 m
Check: 10 cm /m ; 10 days
3 3
Check: 1 cm /m ; 10 days
3 3
35