SMA CBL-DC-CMB1-10 - Manual (Page 13)

CBL-DC-CMB1-10
106183_en_00 PHOENIX CONTACT 13
5.3 Derating diagram
The current per string must be decreased as shown in the derating diagram below, depend-
ing on ambient temperatures higher than +45°C. For each +1°C temperature increase, the
current per string must be decreased with 0,24A. The calculated derating is 1,5 % per +1°C,
in relation to the nominal current.
Ambient temperature in °C
Figure 5-1 Current per string
Current per string
16,0
14,8
13,6
12,4
8,0
9,0
10,0
11,0
12,0
13,0
14,0
15,0
16,0
17,0
18,0
45 50 55 60
Cu
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r s
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A