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Flexi -3G Installation & Commissioning Manual
Chapter 2. Flexi - 3G System General Description
2.3. Rectifiers
Fig. 2-5 APR48-3G Rectifier
Powerware APR48-3G Access Power Rectifiers are designed specifically for network access
applications such as cellular base stations, customer premises equipment and road-side cabinet
installations.
The new generation 3G architecture is reliable, power dense and compact.
The APR48-3G rectifier incorporates a combination of leading-edge high frequency switch mode
technology for a flexible and efficient DC power source, with high reliability fan cooling which further
contributes to its high overall reliability.
The APR48-3G is a high powered rectifier with 1800W output. It is designed for operation at up to
70°C (158°F) and under a wide range of AC power conditions.
These features make the APR48-3G perfectly suited to the wide variety of equipment and demanding
environmental conditions found in network access applications.
The APR48-3G has power factor correction, (up to 92% efficient), with optimum performance available
at typical load currents. Together these give the APR48-3G some of the lowest running costs for any
DC power system of its type available.
Operating with the Powerware SC100 or SC200 system controller, the APR48-3G rectifier modules
will provide years of cost-effective, and trouble free service for your 48V network access equipment.
2.3.1. Outline Rectifier Technical Specifications
AC Supply 220/240V, 50/60Hz (nominal) 175-275V full output power up to 50°C [122°F]
Power Factor >0.99 (50 – 100% Output Current)
Efficiency 92% (50 – 100% Output Current)
DC Output Voltage Range 48V: 43 – 57.5V
DC Output (maximum) 1800W @ 48V
Operating Temperature Range -40°C – +70°C [-40°F – +158°F]
Output current is de-rated above 50°C [122°F] and below -10°C [14°F]
Document No: - 4493-CM-EN-10989402
Page 13 of 94
Copyright © 2008-2009 Eaton Corporation. All Rights Reserved
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