Emerson Introduces Row-Based Liebert APM UPS with Modular FlexPower Technology
Emerson Network Power introduced the Liebert APM row-based, modular uninterruptible power supply (UPS) system. The Liebert APM is a transformer-free, on-line UPS that allows quick power capacity increases with the addition of internal FlexPower™ core hardware assemblies. The FlexPower core assemblies allow the system to expand for capacity or redundancy in 15 kW increments up to 45 or 90kW within a single cabinet. Addition or replacement of FlexPower cores can be accomplished without powering down connected equipment. The Liebert APM 45 or 90kW model (60 Hz frequency) is available in North America and South America.
The FlexPower cores incorporate distributed intelligence and scalable power in a common assembly and allow configuration of a completely redundant power and control system, sized to match the capacity of the protected equipment. When power requirements change, data center managers can easily add capacity without increasing the system footprint. This approach allows for right-sizing of the UPS, resulting in improved energy efficiency and reduced power expenditures.
"Flexibility is critical in today’s data center environment and will be imperative for businesses in the years ahead. The data center is a dynamic environment and optimizing performance in that environment requires a flexible infrastructure," said Peter Panfil, Vice President and General Manager for the Liebert AC Power business of Emerson Network Power. "The cost-efficient Liebert APM UPS gives data center managers the reliability and flexibility they need while offering the industry’s highest efficiency. It operates at up to 94% efficiency, with a virtually flat efficiency curve from 50-100 % load, resulting in significant energy cost savings. The Liebert APM also eliminates single points of failure that are inherent in competitive products."
The Liebert APM is available in two configurations. The 90 kW frame uses matching external battery cabinets for battery runtime, and allows for 90 kW of capacity, or 75 kW of capacity plus 15 kW of redundancy. The 45 kW frame allows for 45 kW of capacity, or 30 kW of capacity plus 15 kW of redundancy, and includes internal batteries with optional external battery cabinet for additional runtime. In both models, the external battery cabinet can be outfitted with Alber BDSi monitoring system to constantly monitor each battery, ensuring battery reliability and allowing for proactive management. The UPS is available with input voltages of 208, 480 or 600V, with 208V output.
"The Liebert APM provides our data center with the reliability of an enterprise UPS, while giving us the much-needed flexibility to adapt to increasing power demands," said Michael Robinson, Senior Network Administrator for Okuma America Corp. The company currently utilizes the Liebert APM in its Charlotte, North Carolina data center, where it protects servers, core switches, server distribution switches and storage arrays. "From a cost perspective, the peace of mind it provides is invaluable. Our area recently experienced a power failure and our servers did not miss a beat. I came to work and did not even realize there was an outage until I noticed that other parts of our facility were without power. Our data center was still up and running."
The Liebert APM features an optional bypass distribution cabinet (BDC) that provides wrap-around maintenance bypass so the attached load can run on utility power during UPS service. The unit also features a menu-driven monitor panel that displays unit metering and status information in a logical format, including utility power input, bypass, output and load data; as well as battery characteristics and history and event logs.
It can be installed in raised or non-raised floor applications, and is ideally suited for small to medium-sized data centers, server rooms, production areas, labs and testing facilities and telecommunications or process controls centers.
