Siemens SIMATIC HMI Mobile Panel 277 RO - Mounting Positions and Type of Fixation

Planning application
3.2 Mounting positions and type of fixation
Mobile Panel 277 RO
Operating Instructions, 10/2015, A5E36824256-AA
35
Climatic ambient conditions for the connection box
The following table shows the permitted climatic ambient conditions for use of the connection
box.
Ambient conditions
Permitted range
Comments
Temperature, operation
From 0 to 50 °C
Temperature, storage/transport From –20 to 70 °C
Relative humidity, operation
35 % to 85 % Without condensation, corresponds
to relative humidity, stress level 2 in
accordance with IEC 61131, part 2
Relative humidity, storage /
transport
Atmospheric pressure 1080 hPa to 795 hPa Corresponds to an elevation of
–1,000 to 2,000 m
Pollutant concentration SO
2
< 0.5 ppm
Relative humidity < 60%,
no condensation
Check: 10 cm
3
/m
3
; 10 days
H
2
S: < 0.1 ppm;
relative humidity < 60%,
no condensation
Check: 1 cm
3
/m
3
; 10 days
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.