Pepperl+Fuchs K-System Manual page 24

K-System – Isolated Barriers
Mounting and Installation
Mounting Conditions for Operating the Device at Higher Ambient
Temperature
Certain devices with a maximum allowable ambient temperature of 60 °C (140 °F)
can be operated at ambient temperatures up to 70 °C (158 °F) if mounted horizontally.
These devices have a corresponding reference to this manual in the datasheet.
Caution!
Device failure due to overlooking heat dissipation
Overlooking heat dissipation can compromise the function and the electrical safety of the
device.
• Mount the device on the DIN mounting rail according to the specified minimum
separation distance.
• Do not operate devices without this reference in the datasheet at an ambient temperature
up to 70 °C (158 °F).
Mounting the Isolated Barriers with Separation Distance
Mount the device on the DIN mounting rail. Observe the specified minimum
separation distance.
See following figures.
• KC devices with 12.7 mm housing width, housing type A*: min. 6 mm
• KF devices with 20 mm housing width, housing type B*: min. 10 mm
• KF devices with 40 mm housing width, housing type C*: min. 15 mm
Figure 3.4
24
12.7 ≥6 12.7 ≥6
Horizontal mounting of KC devices with 12.7 mm housing width (single device mounting)