CDtechno SX500-U1D, SX500-U1C, SX500-U1B, SX500-U1A Datasheet

Product Data Sheet

500 WATT

AC/DC POWER SUPPLY

SX500

FEATURES

 Active Power Factor Correction

DESCRIPTION

The SX500 is a compact 500 watt Power Factor
Corrected, single output power supply. Active cur-

 Active Current Sharing With ORing Diodes

 FCC/VDE Class B EMI Filter

 Optional Active Inrush Current Limit

 Compact Size: 10” x 4.85” x 2.19”

 Optional SCR Crowbar

 Optional Cover With Fan

Internet: http://www.cdpowerelectronics.com

Power Electronics Division, United States

3400 E Britannia Drive, Tucson, Arizona 85706

Phone: [phone] Fax: [phone]

SX500 10/98 REV B Page 1

rent sharing circuitry with ORing diodes, together with
control functions and alarm options, simplifies N+1
redundant applications.

AGENCY APPROVALS

Power Electronics Division, Europe

C&D Technologies (Power Electronics) Ltd.

132 Shannon Industrial Estate, Shannon, Co. Clare, Ireland

Tel: [phone] Fax:[phone]

Input Specifications

Parameter Conditions Min Typ Max Units

Operating Range 47-63 Hz 90 264 VAC

Inrush Current Limiting

Thermistor 120 V

Active Current Limit 264 VAC 19 APK

Efficiency Nominal line and full load 75 %

Power Factor Correction (PFC) 0.99

Meets EN61000-3-2 (formerly IEC 555-2)

AC, cold start 30 APK

240 VAC, cold start 60 APK

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: 115% 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 µsec 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/CUL Recognized: UL File Number E13164 (1950)
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.

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