Datasheet

CT10.481
C-Series
48V, 5A, THREE PHASE INPUT
8. EFFICIENCY AND POWER LOSSES
3AC 400V 3AC 480V
Efficiency typ. 92.8% 92.9% at 48V, 5A, 3-phase operation
typ. 92.4% 92.6% at 48V, 5A, when using only two legs of a 3-
phase system, see also chapter 23.6.
Average efficiency *) typ. 92.0% 91.7% 25% at 1.25A, 25% at 2.5A, 25% at 3.75A.
25% at 5A, 3-phase operation
Power losses typ. 2.3W 2.6W at 0A, 3-phase operation
typ. 18.6W 18.3W at 48V, 5A, 3-phase operation
typ. 23.5W 22.8W at 48V, 6A, 3-phase operation
*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%
of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.
Fig. 8-1 Efficiency vs. output current at 48V,
typ., 3-phase operation
Fig. 8-2 Losses vs. output current at 48V,
typ., 3-phase operation
Efficiency
1
89
91
93
88
94%
6
A
245
Output Current
3
90
92
3x400Vac
3x480Vac
Power Losses
012 456A
0
4
12
20
24W
3x480Vac
3x400Vac
8
3
16
Output Current
Fig. 8-3 Efficiency vs. input voltage at 48V,
5A, typ., 3-phase operation
Fig. 8-4 Losses vs. input voltage at 48V, 5A,
typ., 3-phase operation
Efficiency
320 360 400 440 480
94%
91.5
92.5
93.5
93.0
92.0
91.0
520 560
Input Voltage Vac, 3-Phase
Power Losses
320 360 400 440 480
24W
4
12
20
16
8
o
520 560
Input Voltage Vac, 3-Phase
Jan. 2010 / Rev. 1.1 DS-CT10.481-EN
All parameters are specified at 48V, 5A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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