Vertiv Announces Dynamic Online Mode and New, Smaller Modules of High Power Density UPS Family

Sydney [March 29, 2019] – Vertiv today announced a new feature for the Liebert EXL S1 line of uninterruptible power supply (UPS) systems, adding Dynamic Online mode, which allows operating efficiency of up to 99 per cent. The UPS family is available in Asia, including Australia and New Zealand, from 300 kVA to 1200 kVA, 400V. The UPS is also available in Europe and North America and a variety of input and output voltages. Dynamic Online mode is available for Liebert EXL S1 globally. Vertiv introduced Dynamic Online mode to the Liebert EXL S1 to meet the needs of cloud, colocation and enterprise data centres that cannot sacrifice any level of availability for incremental gains in efficiency. With efficiency up to 99 per cent, the Liebert EXL S1 operating in Dynamic Online mode offers substantial energy savings over legacy UPS systems which average 94 per cent efficiency, and even improves on modern UPS systems that approach 97 per cent efficiency. Over five years, a 1000 kVA Liebert EXL S1 can save more than US$230,000 over a same-capacity 94 per cent efficient UPS system and more than US$140,000 over a same-capacity 97 per cent efficient UPS system. 

“As data centres get larger, energy consumption has become increasingly important to data centre operators and owners. With the introduction of the Dynamic Online mode in the Liebert EXL S1 UPS, we are able to give our customers a highly efficient infrastructure solution that delivers best-in-class network availability,” said Chee Hoe Ling, vice president for product and solutions and marketing in Asia. 

While in Dynamic Online mode, the Liebert EXL S1 inverter can instantaneously assume the load and maintain the output voltage well within the IEC 62040-3 Class 1 specification. That means systems equipped with Dynamic Online mode can safely transition from high-efficiency (Voltage Independent) mode to inverter mode with a near-zero-millisecond transfer, thus providing absolute load power protection under virtually any input power outage condition. 

The new models of Liebert EXL S1 are up to 40 per cent smaller than competitive systems and designed to meet the reliability and flexibility demands of the modern data centre. Redundant DC variable speed fans enable the UPS to support 100 per cent load even with multiple fan failures. Various input/output options add flexibility and reduce capital and installation costs. As with previously released Liebert EXL S1 modules, customers can parallel up to eight units and leverage Intelligent Parallel mode to automatically optimise efficiency at reduced load levels.

The system’s touchscreen interface offers a status-at-a-glance LED light bar, customisable views and multiple security options, while intelligent controls ensure seamless integration with multiple Vertiv and third-party building management and data centre infrastructure management systems. All sizes of the Liebert EXL S1 UPS are available with lithium-ion batteries, flywheels, Albér® battery monitoring, and LIFE™ Services.

For more information on the Liebert EXL S1 and other UPS solutions from Vertiv, visit

About Vertiv

Vertiv brings together hardware, software, analytics and ongoing services to ensure its customers’ vital applications run continuously, perform optimally and grow with their business needs. Vertiv solves the most important challenges facing today’s data centres, communication networks and commercial and industrial facilities with a portfolio of power, cooling and IT infrastructure solutions and services that extends from the cloud to the edge of the network. Headquartered in Columbus, Ohio, USA, Vertiv employs around 20,000 people and does business in more than 130 countries. For more information, and for the latest news and content from Vertiv, visit

FQ Editor

Written by FQ Editor

Press release from an outside source. Please consult the organisation directly for details about this release.

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