Front-End AC-DC Power Supply targets PoE applications.

Press Release Summary:

Preset to output 54 Vdc with factory-adjustable output from 42–55 V, Model PSE-3000-54 is suitable for telecom and networking applications. Unit features N+1 redundancy and hot swap blind-docking capability implemented through use of single connector that integrates AC, DC, and I/O signals. Housed in 1.6 x 4 x 14 in. 1U package, 3 kW power supply delivers power density of 33.48 W/in.³ and achieves 94% efficiency at 50% load. Output is floating and features isolation of 1,500 Vrms.

Original Press Release:

3 kW Platinum Front-End Ac-Dc Power Supply Targets Power over Ethernet (PoE) Applications

CUI Extends N+1 Hot-Swap Series with the addition of a 54 Vdc Output Version

TUALATIN, Ore. —  CUI Inc today announced the expansion of their 3000 W front-end ac-dc power supply series with the addition of the PSE-3000-54 targeting Power over Ethernet (PoE) applications. The power supply is preset to output 54 Vdc with a factory-adjustable output from 42 V to 55 V, making the model also suitable for a wider range of telecom and networking applications. Key features include N+1 redundancy and hot swap blind-docking capability implemented through the use of a single connector that integrates ac, dc and I/O signals. The PSE-3000-54 delivers a power density of 33.48 W/cubic inch and achieves Platinum efficiency (94% efficient at 50% load) in a compact standard 1U package measuring just 1.6 x 4 x 14 inches (40.64 x 101.6 x 355.6 mm).

The main 54 Vdc output delivers up to 55.5 A with droop current sharing for paralleling of multiple units. The output is floating and features isolation of 1500 Vrms specifically for PoE applications. For monitoring and control of the module, the PSE-3000-54 features system communications via I2C/PMBus™ protocol. For maximum flexibility, the series is available in front-to-back or back-to-front airflow configurations depending on the application’s cooling requirements. Additionally, standby outputs of 3.3 Vdc or 5 Vdc at 2 A are provided. The PSE-3000-54 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” & “B” output channel operation. The dc output terminal blocks can be configured to be single or dual polarity.

Models with a user-adjustable output from 20 V to 54 V are also available upon request.

Samples of the PSE-3000-54 are available immediately; please contact CUI for more information.


Product name: PSE-3000-54 Series

Availability: Stock to 16 weeks

Possible users: Power over Ethernet, telecom, networking, broadcast applications

Primary features: Platinum efficiency, N+1 redundancy, PMBus communication

View details for the PSE-3000-54 series

About CUI Inc

CUI Inc is a technology company focused on the development and distribution of electronic components. At the leading edge of power supply design, the organization supports customers as they strive to improve the energy efficiency and environmental credentials of their application.  The company's power group is complemented by a portfolio of world-class board level components, consisting of interconnect, sound, motion control and thermal products.  An unwavering commitment to create collaborative partnerships with customers and a drive to see that their design project is a success has been a hallmark of CUI's sustained growth since its founding in 1989.   As a leader in the industry, CUI will continue to invest in the future through new technologies, talented employees, expanded manufacturing capabilities, and a growing global reach.

CUI Inc is a subsidiary of CUI Global, Inc., a publicly traded company whose common stock trades on the NASDAQ Exchange under the symbol CUI.

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Maggie Lefor

+1 503 612 2300

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