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Vertiv introduces energy-efficient, scalable Liebert APM2 UPS with compact design, high efficiency, and intelligent paralleling for edge computing. (Image source: Vertiv)

Vertiv, a global provider of critical digital infrastructure and continuity solutions, has introduced the Vertiv Liebert APM2, a new energy-efficient and scalable power solution to its uninterruptible power supply (UPS) systems portfolio


The Liebert APM2 is compatible with lithium-ion (Li-ion) and VRLA batteries and features a compact design that can scale from 30kW to 600 kW in a single unit. It offers significant energy savings as compared to less efficient alternatives, and can also parallel with up to four matching units for additional capacity or redundancy.

The Liebert APM2 is a CE certified UPS system available in 400V in Europe, the Middle East and Africa, Latin America, and Asia, including India and China.

To satisfy the increasing power needs of edge computing applications, as well as the constrained space typical of these sites, Liebert APM2 delivers a greater power output in a smaller footprint than similar capacity solutions, with Liebert APM2 models requiring up to 45% less space than the predecessor UPS, Vertiv Liebert APM. The Liebert APM2 can be installed in-row, in-room, against-the-wall, or back-to-back for further application flexibility.

"Vertiv created the Liebert APM2 in response to the need for a compact and efficient product that delivers dependable power quality and availability to the network edge,” said Kyle Keeper, senior vice president of global AC power at Vertiv. “The UPS is Vertivs cutting-edge solution for handling increasing power infrastructure needs without the need for a complete system overhaul.”

The Liebert APM2 operates with high energy efficiency in all modes, up to 97.5% in double-conversion mode; up to 98.8% efficiency when operating in Dynamic online mode, which draws power through the bypass line and uses the inverter for balanced output and as an active filter; and up to 99% when operating in ECO mode, which takes advantage of stable grid input conditions to leverage the bypass line. All modes are automated based on user preferences. The intelligent paralleling feature of the Liebert APM2 facilitates load sharing among multiple power modules, even across multiple units. This enables balanced unit runtime and offers automatic failover for enhanced system availability. Intelligent paralleling has also been shown to contribute to energy efficiency.

“Vertiv has introduced, in Liebert APM2 and other UPS systems, enhancements that improve operational efficiency and can contribute to a reduced data center PUE while also maintaining system availability,” said Giovanni Zanei, senior director AC power global offering & EMEA business leader at Vertiv. “In particular, the Dynamic Online feature, built on a robust global platform launched in 2018, enhances the already impressive UPS efficiency and has been adopted by energy- and availability-conscious customers, including many colocators.”

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