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RFC 4072R
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PHOENIX CONTACT 110146_en_00
5.3 Mounting the controller
Safety notes NOTE: Overheating due to high ambient temperature
At an altitude of 0 m ... 2000 m above mean sea level, the controller can be operated
without a fan module at ambient temperatures up to +60°C. Higher ambient tempera -
tures can cause the device to overheat.
Recommended:
• At an altitude of 0 m ... 2000 m above mean sea level, operate the RFC 4072R with
a fan module at an ambient temperature above 50°C.
The RFC 4072R must always be operated with the fan module in the following ambi -
ent conditions:
– 0°C ... +55°C (2000 m ... 3000 m above mean sea level)
– 0°C ... +50°C (3000 m ... 4000 m above mean sea level)
NOTE: Overheating due to covered vents
The RFC 4072R can overheat if the vents on the device are covered.
• When installing the controller, make sure that the vents on the device are kept
clear.
• During installation, leave a gap of > 10 cm above and below the device.
• Do not install devices below the controller that could additionally heat the controller
up.
Please note:
• Mount the controller on a grounded 35 mm standard DIN rail with an installed
height of 15 mm. The distance between the DIN rail fastening points must not ex -
ceed 160 mm (see Figure 5 - 3 on page 73 ).
• To avoid contact resistance, only use clean, corrosion-free DIN rails.
• Use end brackets to stop the devices from slipping on the DIN rail.
If operating the controller with a fan module:
• Mount the fan module on the RFC 4072R before you mount the controller, see
Section “Mounting the fan module” on page 70 .