General Design; Control Cabinet Design Calculation - KEB COMBIVERT F5 MULTI Applications Manual

10. Project
Planning

10.1 General Design

10.1.1 Control Cabinet
Design
Calculation
Control cabinet surface
© KEB Antriebstechnik, 2002
All Rights reserved
The following chapter shall assist you in the planning stage of applications.
Direction of cooling fins
KEB
COMBIVERT
Cool air inlet
Calculation of control cabinet surface:
P
V
2
A = [m ]
∆T ï K
A = control cabinet surface
∆T
= temperature differential
(standard value= 20 K)
K = coefficient of heat transmission
(standard value = 5
P = power loss (see Technical Data)
V
V = air flow rate of fan
For more details please refer to the catalogs of the control cabinet manufacturers.
Name: Basis
KEB COMBIVERT F5
Project Planning
Warm air
outlet
Air flow rate with fan cooling :
V =
[m 2 ]
[K]
W
[ ]
m 2 ï K
W
)
m 2 ï K
Date
04.05.04
150
F4 F4 30
F5
F5
100
Minimum
distances
3,1 ï P
V
3
[m /h]
∆T
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