8-24 amp, ±130 VDC Series Modular DCDC Converter with 8 amp Converter
Modules
Key Features
• Modular Design
Design—plug-in
modules enable easy
expansion of capacity or rapid
replacement without service
interruption
• High Efficiency
Efficiency—high
frequency technology creates
long term energy savings
• Compact Design
Design—requires
less than 7" (17.78cm) of
vertical rack space
Description
The Lorain® HSB24HCAB modular DC-DC converters utilize high frequency technology for
compact, reliable ±130 VDC from -48 VDC power. The modular design makes the HSB
extremely flexible. Eight amp plug-in modules can be used to increase capacity from 8 amps
(one module) to 24 amps (three modules) without taking the unit off line and with no
additional wiring or fusing. Cabinets equipped with two modules can also be wired for
independent operation with one performing at +130 volt and the other at -130 volt.
Applications where power growth requirements are anticipated can install empty cabinets
that are ready for additional DC-DC converter plug-in modules. These compact units fit
23" (58.42cm) relay racks and require less than 7" (17.78cm) of vertical space.
Application
• Fan Cooled
Cooled—front to back
The HSB series converter is designed for use in toll offices and other applications requiring
130 VDC. Flexible design allows for operation in switch site or hostile environment.
• Isolated Output
Output—can be set
for + or - 130V operation
Additional Information
For additional specification, engineering and installation information, specify model
HSB24HCAB, spec. number 588247500 (cabinet) and model HSB8HM, spec. number
486809800 (8 amp module [up to 3 per cabinet]).
Model HSB8H Equipped with
Three Modules
LLP 7-9
8-24 amp, ±130 VDC Series Modular DC-DC Converter
with 8 amp Converter Modules
Specifications
Input
Voltage: 48.0 (42 to 57) VDC
Current:
26.2 amps with (1) 8 amp module
52.5 amps with (2) 8 amp modules
78.7 amps with (3) 8 amp modules
Circuit Protection: A DC input circuit breaker in each
converter module open the negative input lead.
Input Fusing (external to unit): A separate 40 amp input
fuse or circuit breaker is recommended for each converter
module.
Output
Voltage: 130.0 VDC (± grounded)
Current:
8 amps with (1) 8 amp module
16 amps with (2) 8 amp modules
24 amps with (3) 8 amp modules
Efficiency: 90% between 50% and 100% of full load at
nominal input voltage
Protection
Short Circuit: A 15 amp fuse is located on the output lead of
each converter module.
Current Limit: Output current is limited to a preset
(adjustable) value. Factory set at 110% of full load.
High Voltage Shutdown — If the rectifier module voltage
exceeds a preset value, the module will shutdown. Unless
specified otherwise, the factory adjusted value is 150.0 ±0.5
volts.
Status/Alarm Indicators — AC-On LED; Fan-Failure LED;
Converter-Fail LED.
Remote Float/Equalize (Remote location control only)
Load Sharing:
Current Walk-In:
Remote On/Off:
Remote Emergency Shutdown:
www
er
w.. m a r c o n i . c o m /pow
/power
Marconi Communications
1122 F Street
Lorain, OH 44052
800-800-1280
Fax: 440-246-4876
Environmental
Operating Temperature: -40° C to +65° C (-40° F to 149° F)
Storage Temperature: -20° C to +65° C (-4° F to +149° F)
Humidity: 0% to 95% relative humidity, noncondensing
Altitude: The maximum operating ambient temperature
should be derated by 10° C at 10,000' (3,048m) above sea
level. For elevations between 3,000' (914.4m) and 10,000'
(3,048m), derate the maximum operating temperature
linearly.
Heat Dissipation:
When equipped with (1) module - 550 Btu/hr maximum
When equipped with (2) modules - 1100 Btu/hr maximum
When equipped with (3) modules - 1650 Btu/hr maximum
EMI/RFI Suppression: Conforms to the radiated noise
requirements of FCC rules Part 15, Subpart B, Class A.
Physical Characteristics
Mounting: 23" (58.42cm) mounting
Dimensions:
Height: 6.89" (17.50cm)
Width: 23" (58.42cm)
Depth: 11.53" (29.29cm)
Weight: 53 lbs. (19.51 kgs) with (3) modules
Color: Off-White
8 amp Converter Module
Lorain® is a trademark of Marconi Communications Inc.
© 2000 Marconi Communications Inc.
Printed in the USA. All rights reserved. Any unauthorized
reproduction or transmission without the prior consent of
Marconi Communications Inc. is prohibited.
LLP 7-10