Input ratings – Emerson DC-DC Converter Module Mounting Shelf DCS4830 User Manual
Page 11
System Application Guide
SAG584622000
Spec. No. 584622000 (Model DCS4830)
Issue AB, November 18, 2009
Page 11 of 17
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1.2 Input
Ratings
1.2.1 Voltage: 24 volts DC nominal. Input voltage range is 21 to 28 volts DC.
1.2.2 Filtering:
Noise reflected back to the central office battery is less than 32 dBrnC.
1.2.3 Typical Input Data -
When equipped with one Converter Module.
(A)
The output voltage of the DC-DC Converter Module is initially adjusted to 48 volts at 50%
load and 24 volts DC input.
Input Voltage
Percent
of Full Load
Input Current
(Amps)
Efficiency
(%)
Typical Heat
Dissipation
(BTU/Hr)
0 0.84
-- 60
25 6.99
82.1
90
50 13.21
86.5
128
75 19.71
86.6
190
21 VDC
100 26.33
86.0 264
0 0.74
-- 61
25 6.17
81.4
94
50 11.56
86.5
128
75 17.16
87.0
183
24 VDC
100 22.99
86.2 260
0 0.66
-- 63
25 5.37
80.2
102
50 9.99
85.8
136
75 14.77
86.7
188
28 VDC
100 19.68
86.3 257
(B) Maximum Current:
Maximum input current is 26.33 amperes at full load (10 amperes) and
21 volts DC input.