Emerson 240V Manuel D’Utilisation

Congratulations on your purchase of Liebert’s Nfinity™ Uninterruptible Power System. As with 

every other Liebert product, we stand behind our quality. If you have any questions concerning this 

UPS, please feel free to contact your local dealer or Liebert representative or call the appropriate 

Technical Support number listed on the back of this manual. 
To ensure proper installation and operation of this unit, please read this manual thoroughly.
For details on product warranty and registration, see 6.1 - Product Warranty Registration.

The Liebert Nfinity 12 to 20 kVA Power System is a modular UPS available in a 12 bay frame. It is 

intended for use with workstations, servers, network, telecom and other sensitive electronic equip-

ment. It provides continuous, high-quality AC power to your equipment, protecting it from any power 

disturbance due to blackouts, brownouts, surges or noise interference. 
The Nfinity modular UPS was designed to provide maximum system availability to business-critical 

equipment. Nfinity is also an easily adaptable UPS system. By simply installing additional Power or 

Battery Modules, you can expand your current system capacity or extend your backup runtime.
Nfinity has a comprehensive user interface that enables configuration according to the user’s prefer-

ence. It also informs the user of details on the status of the UPS and keeps a log of events.

• Up to 20 kVA of modular backup power
• Continuous power conditioning
• A user-friendly interface for custom configuration
• Continuous system monitoring
• Warning alarms and event logs
• Internal automatic & manual bypass

• Power Modules - for power conditioning
• Battery Modules - for backup power
• System Control Modules - for system monitoring and communications
• LCD Display - for comprehensive user indications and programmable controls
• Output Transformer - for isolation
• REPO Switch Connection

• Dry contacts
• RS-232 
• Optional communications via Intellislot™ communication ports