Embedded Power for
Business-Critical Continuity
DS450DC-3/
DS550DC-3
450 - 550 Watts
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power:
450 - 550 Watts
+12 Vdc main Output
+3.3 Vdc Stand-by Output
DC Input 36 - 75 Vdc
DC Input
Rev. 10.13.09_79
DS450DC/DS550DC
1 of 4
Connector input shown
Electrical Specifications
Special Features
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1U X 2U Form Factor
10.3 W / in
3
(DS550)
8.4 W / in
3
(DS450)
+12 Vdc Output
+3.3 Vdc Stand-By
No Minimum Load Required
Hot Plug Operation
N + 1 Redundant
Internal OR’ing Fets
Active Current Sharing
Built-in Cooling Fans
(40 mm x 28 mm)
I
2
C Communication Interface Bus
EERPOM for FRU Data
Amber LED Status, Fan_Fail
Green LED Status, Power Good /
DC_OK Status (VIN_GOOD)
Internal Fan Speed Control
Fan Fail Tach Output Signal
One Year Warranty
Input
Input range:
Frequency:
Inrush current:
Efficiency:
Conducted EMI:
Radiated EMI:
Power factor:
Leakage current:
Hold up time:
36 - 75 Vdc
DC input
21 A maximum
EVT: 87% @ 72 Vdc; 87.4% @ 75 Vdc
FCC Subpart J EN55022 Class A
FCC Subpart J EN55022 Class A
N/A
N/A No touch current required.
1 ms minimum
+12 V
+3.3 Vsb
Factory Set, no pot adjustments
+12 Vdc; +5%/-5%
+3.3 Vsb; +5%/-5%
See Table 1 next page
+12 Vdc; 13.5 - 15 Vdc
+3.3 Vsb; 3.76 - 4.30 Vdc
+12 Vdc; 10.5 V - 11.0 V
+3.3 Vsb; 2.77 - 3.00 Vdc
< 3 seconds, EVT: 2 seconds
3 - 300 mS
Output
Main DC voltage:
Stand-By:
Adjustment range:
Regulation:
Over current:
Over voltage:
Under voltage:
Turn-on delay:
+12 V Output Rise Time:
Safety
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UL/cUL 60950 (UL Recognized)
NEMKO+ CB Report EN60950
EN60950
CE Mark
China CCC
EMERSON-NETWORKPOWER [ EMERSON NETWORK POWER ]
