Vertiv Liebert EXL S1 500kVA Transformerless UPS

The Vertiv Liebert EXL S1 500kVA is a transformerless three-phase uninterruptible power supply designed for high-efficiency operation in modern data center and enterprise environments. The system employs advanced power electronics to eliminate the traditional transformer, enabling 99% efficiency at partial load conditions—a significant advancement for facilities seeking to reduce cooling overhead and operational losses. The EXL S1 architecture is optimized for scalability and integrates seamlessly with hyperscale infrastructure, making it a preferred replacement for legacy transformer-based UPS systems.

This model supports online double-conversion topology with true three-phase input and output, delivering robust voltage and frequency regulation across sensitive equipment loads. The 500kVA rating accommodates mid-to-large enterprise data centers, telecommunications hubs, and mission-critical facilities where uninterrupted power and efficiency directly impact total cost of ownership.

Vertiv's EXL S1 500kVA incorporates modular design principles and is engineered for reduced footprint and simplified installation compared to transformer-equipped alternatives. The unit supports multiple connectivity options for monitoring, control, and integration with building management systems, enabling proactive power management and predictive maintenance workflows.

Ideal for

• Hyperscale cloud and colocation data centers consolidating or replacing aging UPS infrastructure
• Enterprise mission-critical facilities requiring high-efficiency online power protection with minimal thermal load
• Telecommunications switching centers and network operations centers with continuous availability requirements
• Financial trading floors and transaction processing environments demanding stringent power quality standards
• Modular and edge data centers where space efficiency and heat reduction are architectural priorities
• Hybrid on-premises/cloud infrastructure hubs requiring standards-based three-phase UPS with advanced monitoring

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.