cdtechno PX500-U4L, PX500-U3A, PX500-U3B, PX500-U4C, PX500-U4D Datasheet
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Product Data Sheet
500 WATT
AC/DC POWER SUPPLY
PX500
DESCRIPTION
The PX500 is a compact 500 watt Power Factor
Corrected, multiple output power supply. All outputs
are fully isolated and regulated. Active current sharing
circuitry, together with control functions and alarm
options, simplifies N+1 and redundant applications. Fan
and disk drive applications are handled by the peak
current ratings of the auxiliary outputs.
FEATURES
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! Active Power Factor Correction
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! High Surge Current Auxiliary Outputs
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! Fully Isolated Outputs
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! One, Two, Three or Four Output Models
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! N + 1 Current Sharing
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! FCC/VDE Class B EMI Filter Standard
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! Fast Transient Response
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! Optional Cover With Fan
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Internet: http://www.cdpowerelectronics.com
Power Electronics Division, United States
3400 E Britannia Drive, Tucson, Arizona 85706
Phone: 800.547.2537 Fax: 520.770.9369
PX500 1/98 REV A Page 1
Power Electronics Division, Europe
C&D Technologies (Power Electronics) Ltd.
132 Shannon Industrial Estate, Shannon, Co. Clare, Ireland
Tel: +353.61.474.133 Fax:+353.61.474.141
Input Specifications
Parameter Conditions Min Typ Max Units
Operating Range 47-63 Hz 90 264 VAC
Inrush Current Limiting
120VAC, cold start 30 APK
240VAC, cold start 70 APK
Efficiency
120VAC, full load 70%
240VAC, full load 75%
Power Factor Correction (PFC) 0.99
Meets IEC 1000-4-7/EN61000-2-3 (formerly IEC 555-2)
Remote Sense
Remote Sense is provided on Output #1 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: 6.5V, ±0.5 VDC
The power supply will latch off until AC power is cycled.
Over Current Protection
Individual current limit on all outputs. Automatic recovery
upon fault removal.
Transient Response
The peak output voltage excursion will not exceed 2% and
will recover within 1% in 400 µsec for a 25% step load.
Output Isolation
All outputs are fully isolated.
N+1 Load Share
Output #1 has active load sharing circuitry. Units will load
share within 1.0% of Maximum Rated Load.
Power Fail Signal
Upon AC input voltage removal, the power fail signal
drops to logic zero at least 5msec before loss of DC
output. Upon AC input turn-on, signal remains low until
outputs are in regulation. Consult the factory for other
options.
Over Temperature Protection
Internal thermal switch turns off power supply if overheating occurs and automatically restarts. Automatic
restart when temperature drops below threshold.
Safety
UL Recognized: UL File Number E14675 (1950 & 1012)
CSA Certified: CSA File Number LR 9070-154C
(C22.2 No9. 234-M90, Level 6)
TUV License Number: R9576030 (EN60950) (IEC950)
Cooling
The unit is designed to operate with 40 CFM of airflow.
PX500 1/98 REV APage 2
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