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Report No. 155282
4.5
TABLE: Thermal requirements
P
Supply voltage (V) .......................... :
24 V dc 24 V dc
⎯
Ambient T
min
(
°C) ............................. :
21.9
40 1)
⎯
Ambient T
max
(
°C) ............................ :
⎯
Maximum measured temperature T of part/at::
T (
°C)
Allowed
T
max
(
°C)
(meas)
(max)
—
L1 body (min. 105°C materials)
34.8
52.9
95
L2 body (min. 105°C materials)
36.6
54.7
95
L3 body (min. 105°C materials)
34.7
52.8
95
L4 body (min. 105°C materials)
36.3
54.4
95
C72 body by L1 (rated 105°C)
30.5
48.6
105
PCB by U5 and C28 (min. 105°C materials)
41.9
60.0
105
PCB opposite U5 (min. 105°C materials)
33.6
51.7
105
C71 body by L4 (rated 85°C)
40.3
58.4
85
PCB opposite U5 (min. 105°C materials)
47.0
65.1
105
PCB by R4 (min. 105°C materials)
38.1
56.2
105
PCB by U12 (min. 105°C materials)
31.9
50.0
105
Wires adjacent to U12 (min. 80°C)
35.1
53.2
80
L8 Winding (min. 105°C materials)
29.8
47.9
95
PCB by D19 (min. 105°C materials)
33.0
51.1
105
C25 body by D19 (rated 85°C)
25.7
43.8
85
Enclosure: external hot spot, top (plastic)
34.8
52.9
95
Temperature T of winding:
t
1
(°C)
R
1
(
Ω)
t
2
(°C)
R
2
(
Ω)
T (
°C)
Allowed
T
max
(
°C)
Insulatio
n class
Supplementary information:
Rise of Resistance not used.
Normal condition heating with a 24 Vdc input (refer to Test item particulars).
1) ”Max” column is temps adjusted for Tmra of 40°C.
1) ”Max” column is temps adjusted for Tmra of 40°C.
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