New 350W High-Efficiency Bulk Switcher - Astec Power

July 5, 2006
New 350W High-Efficiency Bulk Switcher Provides 54V Output; Features Power-Factor-Correction, Or-ing Diode, Standby and Auxiliary Outputs CARLSBAD, Calif. June 14, 2006 Emerson Network Power, a business of Emerson (NYSE:EMR), has expanded its popular Astec NTS Series line of 350-Watt bulk AC-DC switching power supplies from Astec Power to include new 54V output configurations. Available with convection cooling or optional forced-air, the compact units are ideally suited for designs using distributed power architecture. The high-density NTS359 models feature a compact 4-inch by 7-inch footprint for an impressive 8.3W per cubic inch. Operating at 85 percent efficiency, the convection-cooled configuration provides 200W for 1U (1.75-inch high) rack-mount chassis and other low-profile applications, while the fan-cooled option supplies the full rated output up to 50 C with 30 CFM forced air. For added flexibility, the units can be set up for lengthwise or crosswise airflow. With active power factor correction to minimize input harmonic distortion, the compact Astec NTS359 switchers accept input from 85-264VAC or 120-320VDC. The devices are also suited for use as AC-DC front ends for DC-DC converters in a wide variety of applications including telecommunications, networking, test and measurement, single-board computers and gigabit Ethernet devices. A built-in Or-ing diode eliminates the need for external circuitry when using the device in a redundant configuration. The units also include a 12V 1A auxiliary output and 5V at 2A standby output as well as overload, over-voltage and thermal protection. The Astec NTS359 models incorporate built-in Class B EMI filtering, remote sense, remote inhibit and single-wire parallel on the primary output that enables current-sharing to balance loads. With an operating temperature range of zero to 50 C without derating, the units can function up to 70 C by derating the output 2.5 percent per degree C. They comply with IEC EN61000-3-2 harmonic and IEC EN61000-4-X susceptibility standards. Available now, pricing begins at $299 in OEM quantities. Forced-air units with a top cover fan are designated by a CF suffix on the model number.  About Astec Power Astec Power, an Emerson Network Power company headquartered in Carlsbad, Calif., is a leading international supplier of power conversion solutions. Dedicated to advanced research and development, state of the art design, sophisticated automation and in-process testing, Astec Power produces standard, modified standard, and custom AC/DC and DC/DC power supplies, which range in size from one to 18,000 watts. In order to satisfy and continue to grow its international customer base, Astec Power has operations on three continents. Through this strategic allocation of its manufacturing resources, Astec Power delivers competitively priced quality products worldwide, in a timely and reliable manner. About Emerson Network Power Emerson Network Power is an Emerson business that provides a full spectrum of reliable power solutions, including inbound power, connectivity, power supplies, power systems and precision cooling, backed by the largest global services organization in the power industry. These Emerson companies serve the needs of telecommunications networks, data centers, health care and industrial facilities worldwide. About Emerson Emerson (NYSE: EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2005 were $17.3 billion.