1.2.2.3
Cooling
To calculate the heat dissipation, the total power loss P
Vtotal
of all heat-generating components
in a housing must be taken into account.
Total power loss P
Vtotal
= P
V1
+ P
V2
+ P
V3
+... [W]
Convection surface area A [m
2
]:
The surface areas of the front and bottom sides are not included in the convection surface
area calculation.
Note
A recommended value for the power loss of the operator control components is contained in
the "Technical data" section of the associated component (see "Power consumption").
Means of heat dissipation
Heat dissipation can take place as follows:
● Heat dissipation by natural convection
● Heat dissipation by natural convection and internal air turbulence
● Heat dissipation by open-circuit cooling
● Heat dissipation by open-circuit ventilation
General information and networking
1.2 Application planning
Operator panel front: OP 010
18
Manual, 07/2018, A5E36371538B
