Power shelf with hot swappable PSUs offers industry-leading efficiency

Advanced Energy Industries, Inc. has released its latest Open Compute Project (OCP) Open Rack version 3 (ORv3) compliant high-density AC/DC power shelf with industry-leading power efficiency. Fully compatible with the latest ORv3 1OU 21” open rack standard, the Advanced Energy Artesyn power shelf supports the evolution to 48V rack power architecture, which minimises power consumption and enhances the reliability of compute and storage applications in hyperscale and enterprise data centres.

Providing 15kW N+1 redundancy with peak efficiencies of over 97%, the new power shelf can be provided with single or dual AC power inlets. It takes up to six 3kW hot-swappable single-phase AC/DC power supplies and a removable shelf controller. Each power supply can offer a 50.5V, 60A output and accepts an input of 180VAC to 305VAC. A narrow output voltage range eradicates oversized design and simplifies downstream conversion to lower voltages.

“This new power shelf addresses the need to increase rack payload and power density, minimise energy consumption and ensure compatibility across leading data centre hardware by moving to interoperable power conversion solutions,” said Harry Soin, Advanced Energy’s senior director of technical marketing for hyperscale data centres. “In addition, hot-swappable functionality and the option of a secondary power source increase overall system reliability.”

The power shelf is compatible with star, delta and single-phase input configurations and incorporates a hot-pluggable, DMTF Redfish-compatible shelf controller for simple, secure monitoring and control over Ethernet. A Modbus/PMBus communications interface is also supplied for monitoring and control.

The rectifiers deliver active PFC to acquire ultra-low harmonic currents in accordance with EN/IEC 61000-3-2 and EN 60555-2. They include protection against overvoltage, overcurrent, undervoltage and over-temperature conditions. Internally controlled, variable speed fans reduce power consumption by accurately matching the cooling needed for power supply operating conditions.