Siemens SCALANCE X-300 Series Operating Instructions Manual page 167

Table 8-27
Device version
(power supply)
2 x 24 VDC
1 x 100 to 240 VAC
Note: If mechanical load is high, the device should be secured at four points. You will find more
1)
detailed information in the section "Mechanical load in operation".
Note
No desktop operation for devices with 100 to 240 VAC power supply
Desktop operation is permitted only for the 24 VDC variants of the rack devices (R). The
adhesive feet ship with the 24 VDC variants. In this case, the permitted ambient temperature
is -40 °C to +50 °C.
Table 8-28
Storage/transport temperature
Max. relative humidity in operation at 25 °C
Max. ambient temperature at operating altitude
See table: "Operating temperature depending on the media modules used"
1)
Table 8-29
Media module
MM992-2CUC
MM992-2CUC (C)
MM992-2CU
MM992-2M12 (C)
MM992-2VD
MM991-2
MM991-2FM
MM991-2LD
MM991-2 (SC)
MM991-2LD (SC)
MM992-2
MM992-2 (C)
MM992-2LD
SCALANCE X-300
Operating Instructions, 11/2019, A5E01113043-24
Installation options
Permitted ambient conditions
Operating temperature depending on the media modules used
Installation di‐
1)
rection
Horizontal
Vertical
Technical specifications
8.4 XR-300M technical specifications
Installation options
● 19" rack
1)
● Desktop operation with adhesive feet
19" rack
1)
-40 °C to +85 ℃
<= 95% (no condensation)
2000 m or above:
-5 °C of the max. operating temperature
3000 m or above:
-10 °C of the max. operating temperature
Operating temperature
2)
-40 °C to +70 ℃
-40 °C to +50 ℃
1)
1)
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