Vertiv 300 kVA UPS The Vertiv 300 kVA UPS is a high-capacity, three-phase uninterruptible power supply designed to deliver reliable, efficient, and scalable power protection for critical applications such as data centers, healthcare facilities, industrial plants, and telecom networks. Available in models like the Liebert EXL S1 and Liebert APM2, it uses advanced IGBT and transformer-free double-conversion technology to ensure a clean and stable power output with unity power factor, supporting both VRLA and lithium-ion batteries. The system offers high efficiency—up to 97% in double-conversion mode and up to 99% in ECO mode—helping reduce operational costs and energy losses. With flexible installation options, parallel scalability for increased capacity or redundancy, intelligent battery management, and robust communication interfaces for remote monitoring, the Vertiv 300 kVA UPS ensures continuous power availability, minimizes downtime risk, and protects sensitive equipment from power disturbances.