HBC 2K5-3U3 Series0 pages

300Vdc Input, 2500W Rugged, Industrial Quality DC-DC Converter
HBC 2K5-XX-3U3 Series
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Rugged industrial quality
Single phase 300Vdc input
Cooling by high quality built in fans
Full electronic protection
Field-proven design topology
Internal redundancy

This rugged, industrial quality dc/dc power converter uses field-proven topology to generate up to 2500W output power. The unit is
built with HBH65F internal power modules with a track-record in numerous heavy-duty applications. Built‐in redundancy diodes
separate the internal modules and provide inherent internal redundancy. The loss of one internal module reduces the input power by
33%, but the unit remains operational. The redundancy diodes also allow for parallel connection of several units to achieve higher
output power. They also make the unit suitable for battery charging applications. Cooling is by high quality built-in fans, which provide
sufficient airflow for operation at the specified temperature without de-rating. The fans draw air into the unit and the exhaust exits at
the rear of the unit. Optional heavy ruggedizing is available for operation in severe environments. The input and output are filtered for
low noise. Full electronic protection, low component count, large design headroom, and the use of components with established
reliability contribute to a high MTBF. AC-input versions of this design are also available. The unit is manufactured at our plant under
strict quality control.

SPECIFICATIONS
Input Voltage
300Vdc (270-350Vdc)
Other DC inputs are also available
230Vac or 115Vac inputs upon
request
Input Protection
Inrush current limiting
Varistors
Reverse polarity protection
Internal safety fuses
Lower voltage than the specified
minimum input will not damage
the unit
Input Isolation
2250Vdc input to chassis
4300Vdc input to output
8mm spacing
Min. 700Vdc output to chassis,
corresponding to output voltage
Standards
Designed to meet EN60950-1
and corresponding standards
EMI
EN 55022 Class A with margins

Output Voltages
24V/100A, 28V/90A, 48V/52A,
56V/45A, 110V/23A, 125V/20A or
250V/10A
Output is floating, either
terminal can be grounded
Other outputs and higher power
versions on request
Redundancy Diode
Installed for separation of the
internal modules
Line/Load Regulation
± 1% combined from zero load
to full load
Dynamic Response
Max 5% voltage deviation for 10%
to 50% load step, with better than
1msec recovery time
Output Ripple/Noise
Better than 0.2% RMS or 1% of
output voltage peak to peak
(20MHz BW)

Switching Frequency
55kHz ± 5kHz

Overload Protection
Rectangular current limiting with
short circuit protection
Thermal shutdown with automatic
reset in case of insufficient airflow

Hold Up Time
Minimum 5ms at full load for
5% drop of output voltage
at nominal input

Efficiency
Min 80% at full load depending
on input/output configuration
Operating Temperature
0°C to 50°C for full specification
Wider range available on request

Indicators
Diagnostic Output ON LED on
each internal module visible
through the rear perforation.
Control Input
None on standard version
Available on request

Temperature Drift
0.03% per o C over operating
temperature range

Alarm Output
None on standard version
Available on request

Cooling
Forced air by high quality
built-in fans

Package/Dimensions (W x H x D)
3U3 chassis: 187 x 132 x 407mm
(7.4”x 5.2” x 16”)
Dimension s include terminal
blocks and fans and exclude
mounting brackets

Environmental Protection
Basic ruggedizing
Conformal coating
Heavy ruggedizing on request
Shock/Vibration
IEC61373 Cat 1 A&B
MTBF
90,000 hours @45ºC
(fan excluded)
Demonstrated MTBF is
significantly higher.

Output Over-voltage Protection
Double regulator loop completely
stable and independent of main
loop

Weight
Approx. 7kg (15 lb)
Connections
Input: Terminal block
Output: Terminal block or
threaded studs
RoHS Compliance
Fully compliant
Warranty
Two years subject to application
within good engineering practice
Contamination related failures
not covered

Please note that ABSOPULSE power supplies are designed and built to customer specifications. The specifications on this data sheet are generic
and will vary depending on input/output configuration and other customer requirements. Generic specifications are subject to change
Designer and manufacturer of quality converters, inverters, UPS systems, complete rack mount systems and DC-input
fluorescent lamp inverters since 1982. Custom or standard. Absopulse is a BABT-approved Facility
ABSOPULSE ELECTRONICS LTD
110 Walgreen Road, Ottawa. Ontario | K0A 1L0 | CANADA
Tel: +1-613-836-3511 | Fax: +1-613-836-7488
E-mail: absopulse@absopulse.com | http://www.absopulse.com
For more information, please see:
http://www.absopulse.com/Absopulse_DC_DC_Converters.php

June 8, 2014/TS/CL

Made in Canada