Astec Power (Carlsbad, CA), a merchant supplier of power conversion solutions, has set another standard as the first to offer up to 18kW in a 3U (5.25in high) bulk front end with the introduction of its new HPS3KW line of high-efficiency, ac/dc switching power supplies. Individual HPS3KW modules deliver 3,000W of output power at 85% efficiency and a 19in rack can be configured with up to six of the compact devices for a total of 18,000W of clean bulk dc power in less than 2,400in³ of rack space. For maximum system reliability, the hot-swappable modules can also be configured for N+1 redundancy with up to 15kW in the same space.
An extension of Astec’s popular HPS Series of bulk front-end power supplies with power ranges from 350W to 6,000W, the new model addresses a wide range of distributed power architecture requirements for industrial, test, instrumentation, networking and telecom applications. The HPS3KW modules accept ac input from 180Vac to 264Vac and feature active power-factor-correction (typically >0.98) that meets EN61000-3-2 requirements for input-current harmonic content. The single-output devices provide 48Vdc output at 57A and offer a standby supervisory output of 5V at 5A. Each module has over-voltage and over-current protection, active-inrush current-limiting circuitry and an internal OR-ing device.
Available now, OEM pricing starts at less than $0.25/W for basic modules, excluding rack hardware. The 3U, 19in rack can be ordered separately.
