Page 1
Product Data Sheet
400 WATT
AC/DC POWER SUPPLY
SX400
FEATURES
l Active Power Factor Correction
l Active Current Sharing With ORing Diodes
l FCC/VDE Class B EMI Filter
l Optional Active Inrush Current Limit
l Compact Size: 10” x 4.85” x 2.19”
l Optional SCR Crowbar
l Optional Cover With Fan
3400 E Britannia Drive • Tucson, Arizona 85706 • Phone: 520.295.4100 • Fax: 520.770.9369 • Internet: http://www.cdpowerelectronics.com
SX400 2/98 REV A Page 1
DESCRIPTION
The SX400 is a compact 400 watt Power Factor
Corrected, single output power supply. Active
current sharing circuitry with ORing diodes, together with control functions and alarm options,
simplifies N+1 and redundant applications.
AGENCY APPROVALS
See “Safety” section on page 2 for more information
Page 2
Input Specifications
Parameter Conditions Min Typ Max Units
Operating Range 47-63 Hz 90 264 VAC
Inrush Current Limiting
Thermistor 120 VAC, cold start 30 APK
240 VAC, cold start 60 APK
Active Current Limit 264 VAC 19 APK
Efficiency Nominal line and full load 75 %
Power F actor Correction (PFC) 0.99
Meets IEC 1000-4-7/EN61000-3-2 (formerly IEC 555-2)
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 V oltage 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 e xcursion will not exceed 2% and
will recover within 1% in 200 µsec for a 25% step load.
Reverse Voltage Protection
The output is protected to rated load.
Power Fail Signal
Upon AC input voltage remov al, 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 factor y 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 Lev el; common with (-) sense. Consult the
factory for other options.
SX400 2/98 REV APage 2
Page 3
Output Voltages and Maximum Rated Loads
OUTPUT
MODEL NUMBER VOUT IMAX IPK
SX400-U1A ±24V 17A 21A
SX400-U1B ±28V 14A 17.5A
SX400-U1C ±36V 11A 13.5A
SX400-U1D ±48V 8.5A 10.5A
Output Specifications
Parameter Limits
Regulation
Line ± 0.2%
Load ±0.5%
Minimum Load 0.1A
Hold-Up Time 20mSec at Full Load
Parameter Conditions Min T yp Max Units
V oltage Adjustment Range ±5 %
P ARD 20 MHz bandwidth 0.5 % P-P
T emperature
Operating 050°C
Storage -20 +85 °C
T emperature Coefficient (TC) After half hour warm-up ± 0.02 % /°C
SX400 2/98 REV A Page 3
Page 4
Mechanical
0.700
0.550
3.900
8.500
10.00
6-32 THD
(4x)
4.850
2.148
PIN 1
J9
PIN 1
TB2
1.300
AIR FLOW
0.040
COVER
0.620
3.190
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. Shoc k-Method 516.3 Procedure 1.)
WEIGHT: Approximately 4 lbs.
Pin 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
Connector Specifications
J9 Connector
Molex No. 22-28-1093
PIN FUNCTION
1 - Sense
2 + Sense
3 Current Share
4 Remote Inhibit
5 Power F ail
6 DC OK
7 Sync
8 Signal Ground
9 N/C
Standard Options are shown, consult factory for other available options .
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.
SX400 2/98 REV APage 4
Loading...