CANDD DNX301-U4H, DNX301-U4G, DNX301-U4F, DNX301-U4E, DNX301-U4D Datasheet

Product Data Sheet

300 WATT

DC/DC POWER SUPPLY

DNX301

FEATURES

 Fully Isolated Outputs

 Low Profile: 9” x 4.85” x 2.00”

 One, Two, Three and Four

Output Models

 N+1 Current Sharing

 Optional Fan Mounted On

Cover

 Active Inrush Current Limiting

DESCRIPTION

The DNX301 is a compact 300 watt, multiple output power
supply. All outputs are fully isolated and regulated. Active
current sharing circuitry on Output #1, 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.

Website: http://www.cdpowerelectronics.com

Power Electronics Division, United States

3400 E Britannia Drive, Tucson, Arizona 85706

Tel: [phone] Fax: [phone]

Any data, prices, descriptions or specifications presented herein are subject to revision by C&D Technologies, Inc. without notice. While such information is believed to be
accurate as indicated herein, C&D Technologies, Inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness
of such information. Further, because the product(s) featured herein may be used under conditions beyond its control, C&D Technologies, Inc. hereby disclaims all warranties,
either express or implied, concerning the fitness or suitability of such product(s) for any particular use or in any specific application or arising from any course of dealing
or usage of trade. The user is solely responsible for determining the suitability of the product(s) featured herein for user’s intended purpose and in user’s specific application.
C&D Technologies, Inc. does not warrant or recommend that any of its products be used in any life support or aviation or aerospace applications.

Tel: [phone] Fax: [phone]

Milton Keynes MK14 5BU UK

AGENCY APPROVALS

See “Safety” section on page 2 for more information

C&D Technologies, (NCL)

DNX301 4/2002 REV B Page 1

Input Specifications

Parameter Conditions Min Typ Max Units

Operating Range DC 36 48 72 VDC

Inrush Current Limiting

36VD 25 APK

72VDC 50 APK

Efficiency 48 VDC, at full load 70 %

Remote Sense

Remote Sense is provided on Output #1 and will
compensate for 0.7V 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.

Active Inrush Current Limiting

Inrush current is independent of ambient temperature.

Transient Response

The peak output voltage excursion will not exceed 2% and
will recover within 1% in 200 µsec for a 25% load step
change.

Over Temperature Protection

Thermal switch turns off power supply if overheating occurs
and automatically restarts.

Safety

Safety certified to UL/CUL to 1950, File Number E131694
TUV to EN60950/IEC950.

Cooling

The unit is designed to operate with 30 CFM of airflow.

DNX301 4/2002 REV BPage 2