Vertiv™ Liebert® EXL S1 UPS
The Vertiv™ Liebert® EXL S1 is a monolithic, transformer-free UPS that features industry-leading footprint and power per square foot. With high operating efficiency, robust electrical protection and intelligent paralleling, this UPS provides optimized performance at partial load to achieve superior cost savings. It is available in single module and distributed bypass configurations. It is also compatible with Lithium-Ion battery systems. It has a safe capacity testing mode that allows UPS load and battery discharge testing without an external load bank.
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- Banking
- Financial and Insurance
- Data Center/Colocation/Hosting
- Healthcare
- Government
Vertiv™ Liebert® EXL S1 UPS
The Vertiv™ Liebert® EXL S1 is a monolithic, transformer-free UPS that features industry-leading footprint and power per square foot. With high operating efficiency, robust electrical protection and intelligent paralleling, this UPS provides optimized performance at partial load to achieve superior cost savings. It is available in single module and distributed bypass configurations. It is also compatible with Lithium-Ion battery systems. It has a safe capacity testing mode that allows UPS load and battery discharge testing without an external load bank.
- Banking
- Financial and Insurance
- Data Center/Colocation/Hosting
- Healthcare
- Government
Specifications
The Vertiv Liebert EXL S1 UPS, with capacity of 250-1200kVA, is optimized for maximum efficiency and power density. It has a small footprint, lower than similar UPS in its class or in its kVA size range. It is ideal for customers who need every square foot to offer a positive ROI, such as colocation providers, hosting and cloud businesses. This UPS allows customers to either redeploy the saved space to implement more revenue generating IT equipment or reduce the actual design size of their equipment rooms, thus saving construction costs. At Dynamic Online mode, the UPS can have operating efficiency of up to 99% without sacrificing availability. Its touchscreen control panel ensures status-at-a-glance convenience, flexible views and multiple security options. With LIFE Services, get 24x7 remote monitoring by our expert staff to improve availability and lower labor costs.
Liebert® EXL S1 250-400 kVA/kW
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250, 300, 400 kVA/kW | 480 volts | 480 volts | Up to 97% double conversion | 3-wire | 79.1 in | 51.3 in | 36.0 in | 1970 lbs |
See more product information | ||||||||
Liebert® EXL S1 500-600 kVA/kW
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500, 600 kVA/kW | 480 volts | 480 volts | Up to 97% double conversion | 3-wire | 79.1 in | 63.0 in | 36.0 in | 2750 lbs |
See more product information | ||||||||
Liebert® EXL S1 UPS 625-800 kVA
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625, 750, 800 kVA/kW | 480 volts | 480 volts | Up to 97% double conversion | 3-wire | 79.1 in | 78.8 in | 36.0 in | 3508 lbs |
See more product information | ||||||||
Liebert® EXL S1 1000-1200 kVA/kW
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1000, 1100, 1200 kVA/kW | 480 volts | 480 volts | Up to 97% double conversion | 3-wire | 79.1 in | 104.5 in | 36.0 in | 4667 lbs |
See more product information |
Benefits

Features

- Liebert EXL S1 Touchscreen Control Panel User Manual
- Liebert Load Bus Sync Controller Installer User Guide for Liebert EXL S1 UPS SL-70438
- Liebert® Battery Interface Box Product Specs-Installation Sheet (SL-25515)
- Liebert® EXL S1 UPS Operation & Maintenance Manual - Single & Multi-Module SL-26090.pdf
- Liebert eXL Operation and Maintenance Manual Single and Multi Module 625-1200kVA (SL-26030)
- Liebert® Large System 3-Phase UPS Battery System Installation Manual (SL-25418)
- Vertiv™ Liebert® EXL S1 UPS 250kVA-1200kVA Installer GuideSL-26091
- Experience the Interactive Tool
*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.
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Frequently Asked Questions
- Q
- Is this UPS configurable?
- A
- Yes, the UPS is fully configurable at time of order.
- Q
- Does this UPS work with lithium ion batteries?
- A
- Yes, it works with all manufacturers of lithium ion batteries sold by Vertiv.
- Q
- Does this UPS come with a communications card?
- A
- Yes, we provide a standard LIFE Services card or you may choose an optional Unity dual simultaneous protocol card.
- Q
- Does this UPS offer Eco-mode?
- A
- Yes, it offers Vertiv's unique Eco-mode which maintains battery charging and inverter readiness.
- Q
- Can I change display and alarm values or does a service technician have to do it?
- A
- Yes, our standard touchscreen control panel is fully user configurable for type of information displayed, security access codes and warning & alarm parameters.