SX400 2/98 REV A
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400 W
ATT
AC/DC P
OWER
S
UPPLY
Product Data Sheet
SX400
3400 E Britannia Drive Tucson, Arizona 85706 Phone: 520.295.4100 Fax: 520.770.9369 Internet: http://www.cdpowerelectronics.com
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Active Power Factor Correction
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Active Current Sharing With ORing Diodes
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FCC/VDE Class B EMI Filter
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Optional Active Inrush Current Limit
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Compact Size: 10" x 4.85" x 2.19"
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Optional SCR Crowbar
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Optional Cover With Fan
FEATURES
DESCRIPTION
The SX400 is a compact 400 watt Power Factor
Corrected, single output power supply. Active
current sharing circuitry with ORing diodes, to-
gether with control functions and alarm options,
simplifies N+1 and redundant applications.
AGENCY APPROVALS
See "Safety" section on page 2 for more information
SX400 2/98 REV A
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Input Specifications
Remote Sense
Remote Sense is provided and will compensate for 1.0V
of line drop. Remote Sense leads are protected against
open, short and reversal.
Remote On/Off (Optional)
The power supply is turned on with a TTL logic `1' (or open)
signal and turned off by a switch closure or TTL logic `0'
referenced to (-) sense terminal. Consult the factory for
other options.
Over Voltage Protection
Output #1: 15% of nominal voltage is typical.
The power supply will latch off until AC power is cycled.
Over Current Protection
Automatic recovery upon fault removal.
Transient Response
The peak output voltage excursion will not exceed 2% and
will recover within 1% in 200
sec for a 25% step load.
Reverse Voltage Protection
The output is protected to rated load.
Power Fail Signal
Upon AC input voltage removal, the power fail signal drops
to logic zero at least 10msec before loss of DC output.
Upon AC input turn-on, signal remains low until output is in
regulation. Consult the factory for other options.
N+1 Load Share
Output has active load sharing circuitry. Units will load
share within 1% of the Maximum Rated Load.
Over Temperature Protection
Thermal switch turns off power supply if overheating occurs
and automatically restarts.
Safety
UL Recognized: UL File Number E13164 (1950)
CSA Certified: CSA File Number LR 9070C
(C22.2 No950, Level 6)
TUV License Number: R9773309 (EN60950) (IEC950)
Cooling
The unit is designed to operate with 30 CFM of airflow.
DC Power Good Signal
The signal is activated by a 10% loss of regulation Active
low or high; TTL Level; common with (-) sense. Consult the
factory for other options.
Parameter
Conditions
Min
Typ
Max
Units
Operating Range
47-63 Hz
90
264
V
AC
Inrush Current Limiting
Thermistor
120 V
AC
, cold start
30
A
PK
240 V
AC
, cold start
60
A
PK
Active Current Limit
264 V
AC
19
A
PK
Efficiency
Nominal line and full load
75
%
Power Factor Correction (PFC)
0.99
Meets IEC 1000-4-7/EN61000-3-2 (formerly IEC 555-2)
SX400 2/98 REV A
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Mechanical
The information provided herein is believed to be reliable; however, C&D Technologies assumes no responsibility for inaccuracies or omissions. C&D Technologies assumes no
responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No
patent rights or licenses to any of the circuits described herein are implied or granted to any third party. C&D Technologies does not authorize or warrant any C&D Technologies product
for use in life support devices/systems or in aircraft control applications.
Standard Options are shown, consult factory for other available options.
8.500
4.850
10.00
3.900
0.550
0.700
6-32 THD
(4x)
0.040
COVER
1.300
2.148
J9
PIN 1
TB2
PIN 1
AIR FLO
W
3.190
0.620
J9 Connector
Molex No. 22-28-1093
PIN FUNCTION
1
- Sense
2
+ Sense
3
Current Share
4
Remote Inhibit
5
Power Fail
6
DC OK
7
Sync
8
Signal Ground
9
N/C
Pin Specifications
Connector Specifications
Terminal Block 1
Terminal Block 2
POS
FUNCTION
POS
FUNCTION
1
Ground
1
+V
2
AC Neutral
2
+V
3
AC Line
3
-V
4
-V
NOTES:
All measurements are in inches
FAN MOUNTED ON COVER ADDS 1.30".
COOLING: The SX400 is designed to operate with 30 CFM airflow.
SHOCK AND VIBRATION: The SX400 family meets the requirements of MIL STD-810D. (Vibration-Method 514.3 Procedure 1. Shock-Method 516.3 Procedure 1.)
WEIGHT: Approximately 4 lbs.
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