Hot plug 550 W CRPS power supply targets server redundancy

Hot plug 550 W CRPS power supply targets server redundancy

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By Nick Flaherty

The CSU550AP follows Intel’s Common Redundant Power Supply (CRPS) specification to boost the reliability of computing, networking and storage infrastructure in enterprise IT and cloud environments. 

The 1U high enclosure measures 73.5 x 185.0 mm (2.89″ x 7.28″) – a significantly smaller footprint than that of similarly rated earlier generation power supplies. This was achieved by using the latest power switching technology and high density component packaging techniques. It features a wide input range of 90-264 Vac, active power factor correction and is certified for 80plus platinum rated efficiency peaking at 94 percent.

The CSU550AP generates a main output of 12 Vdc for feeding downstream dc-dc converters in systems using distributed power architectures. A 12 Vdc standby output rated at 3 A can be used for power management or supervisory circuitry. The main DC output of the CSU550AP can deliver up to 45.8 A. Active current sharing helps maximize cost effectiveness by eliminating the need for additional components when paralleling multiple power supplies for high current applications.

The supply is hot pluggable and compatible with the Artesyn Embedded Technologies universal PMBus graphical user interface, allowing control via an integral I2C interface using the industry-standard PMBus communications protocol with Class A + 6 dB margin conducted/radiated EMI and RoHS certification.

More details are available at


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