Vertiv Liebert EXL UPS

The Vertiv Liebert EXL S1 UPS, 250-1200kW, delivers secure power while providing premium load protection and maximum energy saving for large scale applications such as AI. The EXL S1 is a monolithic, transformer-free UPS that features optimized, industry leading footprint and power density, excellent operating efficiency and robust electrical protection to achieve superior cost savings.

The Dynamic Grid Support feature can provide frequency regulation by controlling the input power to support services such as frequency regulation-up, regulation-down, or both via charging and discharging of the battery. At Dynamic Online mode, it can have operating efficiency of up to 99% without sacrificing availability.

The EXL S1 features a transformer-free design with full IGBT three-level double conversion technology, providing extraordinary savings on installation and running costs, while at the same time delivering first class load protection. Liebert EXL S1 also features a full IGBT three-level rectifier allowing for electrical infrastructure cost saving, reducing the size of gensets, circuit protection, cabling and transformers.

Vertiv Liebert EXL UPS Features

• Dynamic Grid Support: Provides a fast response to react to the grid services commands in just 0.5 seconds
• Power Protection for High-Density Applications: Reliable power supply to AI power loads across multiple scenarios, including operation under generator, utility, and transition conditions
• Space-saving Design: Small footprint and high energy density allow optimal space
• Easy to Service and Install: Easy, top and front access to key components; no need to go into bypass or shutdown power to access
• Safe Capacity Mode: Provides UPS load and battery discharge testing without an external load bank
• Three Modes of operating Efficiency: Double Conversion (97%), Dynamic Online (99%) and ECO Mode (>99%)
• Advanced Touchscreen Control Panel: Configure data and views
• Flexible Configurations: Dual asynchronous source/dual input capable
• 2014 NEC Compliant
• TAA Compliant

Vertiv EXL UPS Specifications

UPS Power Rating: From 250 kVA – 1200 kVA
Input Voltage to Rectifier/Bypass (VAC): 480, 3-phase, 3-wire
Input Frequency (Hz): 60±5Hz 
Battery Type: Lithium ion, VRLA (Valve Regulated Lead Acid), VLA (Vented Lead Acid)
Load Power Factor Supported (Without Derating): 0.7 Leading to 0.4 Lagging
Output Voltage (VAC): 480, 3-phase, 3-wire
Operating Temperature: 32°F to 104°F

For more in-depth technical specifications, see the EXL data sheet.