Vertiv Liebert PSI5-1500MT120 Line Interactive UPS
The Liebert PSI5 line interactive UPS delivers enterprise-grade power protection in a compact mini tower form factor. Rated at 1,440 VA / 1,350 W, this 120V UPS system is engineered for IT infrastructure requiring continuous availability—servers, network equipment, medical devices, POS systems, and security systems. With pure sinewave output and automatic voltage regulation (AVR), the PSI5-1500MT120 ensures your critical equipment stays online during power events, voltage fluctuations, and outages.
Key Features
- Line-interactive AVR topology with pure sinewave output power
- 1,440 VA / 1,350 W capacity for mid-range IT applications
- Compact mini tower design fits under desks and in tight spaces
- User-configurable output voltage (100/110/115/125 VAC)
- Six 5-15R output receptacles for flexible device connectivity
- Automatic voltage regulation protects against brownouts and surges
- Network-grade reliability for servers and network equipment
- Supports tower, rack-mount, and hybrid configurations
Technical Specifications
| Specification |
Value |
| Manufacturer |
Vertiv |
| Product Line |
Liebert PSI5 |
| Part Number |
PSI5-1500MT120N |
| Form Factor |
Mini Tower |
| Capacity (VA/W) |
1,440 VA / 1,350 W |
| Input Voltage |
120 VAC |
| Output Voltage (Configurable) |
100/110/115/125 VAC |
| Input Connector |
5-15P plug |
| Output Receptacles |
Six 5-15R outlets |
| Topology |
Line-Interactive with AVR |
| Output Waveform |
Pure Sinewave |
| Suitable For |
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 continuously monitors incoming AC voltage and automatically adjusts output through an autotransformer (AVR) to compensate for brownouts and overvoltages. The PSI5-1500MT120 switches to battery backup only during complete power loss, extending battery life while maintaining protection against voltage fluctuations that can damage servers and network equipment.
Can I use this 120V UPS system for international locations?
The PSI5-1500MT120 is specifically designed for 120 VAC input and features user-configurable output voltage (100/110/115/125 VAC). For international deployments, Vertiv offers the Liebert PSI5 line in multiple voltage ratings. Consult with your distributor for 220-240V models suitable for other regions.
How many devices can I connect to this mini tower UPS?
The PSI5-1500MT120 provides six 5-15R output receptacles, allowing you to connect up to six standard devices. With 1,350 W capacity, ensure your total connected load does not exceed this rating for optimal runtime and protection.
Is the Liebert PSI5 suitable for medical and security applications?
Yes, the PSI5-1500MT120 is rated for medical devices, POS systems, and security systems. Its pure sinewave output and line-interactive AVR topology ensure clean, regulated power required by sensitive equipment. Verify compliance with your specific medical or security standards before deployment.
