CUI Inc. has announced the introduction of two 3000 W front-end AC/DC power supply series for mission critical (N+1) redundant applications.  The PSE-3000-48 and PSE-3000-54 series deliver a power density of 33.48 W/cubic inch and achieve Platinum efficiency in a compact 1U package measuring just 1.6 x 4 x 14 inches (40.64 x 101.6 x 355.6 mm). The power supplies are preset to output 48 V_DC or 54 V_DC with an adjustable output from 42 V to 55 V for wireless and broadcast applications.  Hot-swap blind-docking capability is implemented through the use of a single connector that integrates AC, DC, and I/O signals. With a typical efficiency of 94% at 50% load, the power supplies are also ideal for telecom, server, networking, and Power over Ethernet (PoE) applications where reducing energy consumption is of critical concern.

The PSE-3000 series features system communications via I²C/PMBus™ protocol for control and monitoring of the unit.  The PSE-3000-48 main 48 V_DC output delivers up to 62.5 A, while the PSE-3000-54 main 54 V_DC output delivers up to 55.5 A. Both series allow droop current sharing for paralleling multiple units.  Standby outputs of 3.3 V_DC or 5 V_DC at 2 A are provided. For maximum flexibility, the series is available in front-to-back or back-to-front airflow configurations depending on the application’s cooling requirements.  The PSE-3000 series also offers 60950-1 safety approvals, bears the CE Mark, and complies with all applicable EMC requirements to accommodate world wide applications. Protections for over-voltage, over-current, over-temperature, and input under-voltage are standard.

An optional 1U 19” power shelf is available to hold up to 4 power supplies for 12 KW parallel operation, 9 KW N+1 redundant operation, or dual 6 KW "A" and "B" output channel operation. The DC output terminal blocks can be configured to be single or dual polarity.

Datasheet: PSE-3000 Hot-Swap AC/DC Power Supplies