The Vertiv Liebert PSI5 1500VA is a compact 1U rack mount UPS engineered for IT professionals who demand reliable power protection in server rooms, network cabinets, and small data centers. This line interactive UPS delivers 1440VA/1350W at 120V with pure sine wave output and automatic voltage regulation (AVR), ensuring your critical systems—servers, network equipment, medical devices, POS systems, and security systems—stay online during power events. The PSI5 combines network-grade protection with space-efficient design, making it the ideal choice for organizations requiring enterprise-class uninterruptible power without the footprint of larger solutions.
Key Features
- 1U compact rack-mount form factor for space-constrained installations
- 1440VA/1350W capacity at 120V with pure sine wave output
- Line interactive topology with automatic voltage regulation (AVR)
- Network-grade uninterruptible power protection for critical infrastructure
- Supports servers, network equipment, medical devices, POS systems, and security systems
- Advanced power conditioning and surge protection
- Efficient thermal management for continuous operation
Technical Specifications
| Specification |
Details |
| Manufacturer |
Vertiv |
| Product Line |
Liebert PSI5 |
| Part Number |
PSI5-1500RM1201UN |
| Output Capacity |
1440VA / 1350W |
| Input Voltage |
120V |
| Form Factor |
1U Rack Mount |
| Topology |
Line Interactive with AVR |
| Output Waveform |
Pure Sine Wave |
| Supported Equipment |
Servers, network equipment, medical devices, POS systems, security systems |
Frequently Asked Questions
What is a line interactive UPS and how does it protect my equipment?
A line interactive UPS like the Liebert PSI5 continuously monitors incoming voltage and automatically adjusts it using AVR (automatic voltage regulation) to maintain stable power. During outages, it instantly switches to battery backup, delivering pure sine wave output that protects sensitive IT equipment from damage and data loss.
Is the PSI5 1500VA suitable for server room installations?
Yes, the 1U rack mount UPS is specifically designed for server rooms and network cabinets. Its compact 1U form factor fits standard 19-inch racks, while 1440VA/1350W capacity provides robust protection for multiple servers and network devices in small to medium data center environments.
What equipment can I protect with this 1440VA 1350W UPS?
The Liebert PSI5 supports servers, network switches, medical devices, POS terminals, security systems, and other critical infrastructure. The 1440VA/1350W rating ensures adequate runtime for graceful shutdowns or sustained operation during brief power interruptions.
How does automatic voltage regulation (AVR) benefit my network equipment?
Automatic voltage regulation corrects voltage fluctuations without draining battery power, extending battery life and protecting equipment from brownouts and surges. This feature is essential for maintaining uptime in network cabinets where power stability directly impacts business continuity.
