Vertiv Liebert EXL S1 250kVA Three-Phase UPS

Vertiv Liebert EXL S1 250kVA Three-Phase UPS

Brand: Vertiv | Category: UPS & Power Protection

SKU: LIEBERT-EXLS1-250K | Part #: LIEBERT-EXLS1-250K | MPN: LIEBERT-EXLS1-250K

Contact for Pricing — Request a Quote

Request a Quote Contact Us

About the Vertiv Liebert EXL S1 250kVA Three-Phase UPS

The Vertiv Liebert EXL S1 250kVA is a three-phase modular UPS system engineered for large-scale data center environments requiring high availability and scalability. The EXL S1 architecture delivers true modular redundancy through its distributed power module design, enabling N+1 or 2N configurations without requiring external parallel switchgear. This approach reduces footprint, complexity, and total cost of ownership while maintaining enterprise-grade fault tolerance and online double-conversion topology.

The 250kVA unit operates at industry-leading efficiency levels in ECO mode, minimizing cooling requirements and operational expenses in hyperscale deployments. Advanced battery management, integrated system controls, and real-time monitoring via embedded intelligence provide comprehensive visibility into power quality and system health. The modular design supports future capacity scaling through additional power modules, making it ideal for phased infrastructure expansion.

Targeted at hyperscale cloud operators, colocation facilities, and mission-critical AI compute clusters, the EXL S1 250kVA addresses the surging power infrastructure demands of 2025-2026 data center expansion. Its three-phase input/output capability and high power density align with modern distributed computing architectures and renewable energy integration requirements.

Ideal for

  • Hyperscale colocation data centers requiring modular redundancy without external paralleling infrastructure
  • AI model training and inference clusters demanding consistent 3-phase power with minimal latency
  • Cloud service provider regional facilities with phased capacity expansion plans
  • Financial services trading floors and transaction processing centers with strict uptime requirements
  • Research computing facilities deploying GPU-accelerated workloads requiring reliable three-phase distribution
  • Tier 4 data centers implementing N+1 or 2N redundancy architectures with compact footprint constraints

Technical specifications

ManufacturerVertiv
BrandLiebert
ModelEXL S1 250kVA
Manufacturer Part NumberLIEBERT-EXLS1-250K
Product CategoryThree-Phase Modular UPS
Rated Capacity250 kVA / 200 kW
Input Phases3-phase
Output Phases3-phase
Input Voltage380-480 VAC (standard)
Output Voltage380-480 VAC (selectable)
TopologyOnline Double-Conversion (VFI)
Efficiency (ECO Mode)>96%
Efficiency (Online Mode)>94%
Modular DesignTrue modular power modules; supports N+1 and 2N configurations
Battery TypeLithium-ion or Lead-acid (selectable)
Runtime at Full LoadBattery runtime varies by configuration and type
Transfer Time<4 ms
Frequency Range40-70 Hz input; 50/60 Hz output selectable
ScalabilityUp to 3 power modules per frame (750 kVA)
Launch DateQ3 2023
CertificationsIEC 62040-1, CE marking (European compliance)

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

Technical Specifications

BrandVertiv
CategoryUPS & Power Protection
SKULIEBERT-EXLS1-250K
Part NumberLIEBERT-EXLS1-250K
ConditionNew
ModelEXL S1 250kVA
Manufacturer Part NumberLIEBERT-EXLS1-250K
Product CategoryThree-Phase Modular UPS
Rated Capacity250 kVA / 200 kW
Input Phases3-phase
Output Phases3-phase
Input Voltage380-480 VAC (standard)
Output Voltage380-480 VAC (selectable)
TopologyOnline Double-Conversion (VFI)
Efficiency (ECO Mode)>96%
Efficiency (Online Mode)>94%
Modular DesignTrue modular power modules; supports N+1 and 2N configurations
Battery TypeLithium-ion or Lead-acid (selectable)
Runtime at Full LoadBattery runtime varies by configuration and type
Transfer Time<4 ms
Frequency Range40-70 Hz input; 50/60 Hz output selectable
ScalabilityUp to 3 power modules per frame (750 kVA)
Launch DateQ3 2023
CertificationsIEC 62040-1, CE marking (European compliance)