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Product specifications

Vertiv Liebert PSI5-5000RT208N uninterruptible power supply (UPS) Line-Interactive 4.25 kVA 3825 W 4 AC outlet(s)

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4250 VA, 3825 W, LCD, USB, RJ-45, 2U, 438 x 630 x 88 mm, 39.8 Kg + RDU120

Part PSI5-5000RT208N · UPC 767041029048

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About this product

Liebert® PSI5 is a compact, Automatic Voltage Regulation (AVR) line-interactive UPS system designed especially for IT applications such as network closets and small data centers.

The Liebert PSI5 UPS supports advanced pure sine wave output on battery to safeguard critical IT equipment and business electronics. It also provides reliable power protection for servers, critical nodes, network workstations, large network peripherals, network routers, bridges, and other electronic equipment. With 3 different form-factors available, the Liebert PSI5 has been designed to ensure power continuity for a wide array of applicaitons

Manufacturer warranty information

2 years

Features

UPS topology
Line-Interactive
Output power capacity
4.25 kVA
Output power
3825 W
Waveform
Pure sine
Input operation voltage (min)
150 V
Input operation voltage (max)
281 V
Input frequency
55/65 Hz
Output operation voltage (min)
200 V
Output operation voltage (max)
240 V
Output frequency
57/63 Hz
Automatic Voltage Regulation (AVR)
Yes
Surge energy rating
2064 J
Response time
6 ms
Number of input phases
1
Number of output phases
1
Efficiency
96%
Emergency Power Off (EPO)
Yes
Noise level
55 dB
Surge protection
Yes

Ports & interfaces

AC outlet types
NEMA L6-30R
Power plug
NEMA L6-30P
AC outlets quantity
4 AC outlet(s)
USB port
Yes
USB 2.0 ports quantity
1
USB port type
USB Type-B
Ethernet LAN (RJ-45) ports
2
Cabling technology
10/100Base-T
Emergency Power Off (EPO) connector
Yes

Battery

Battery technology
Sealed Lead Acid (VRLA)
Typical backup time at full load
3 min
Typical backup time at half load
10 min
Battery recharge time
4 h

Design

Form factor
Rackmount/Tower
Rack capacity
2U
Cable length
3 m
Product colour
Black
Display type
LCD

Operational conditions

Operating temperature (T-T)
0 - 40 °C
Storage temperature (T-T)
-15 - 50 °C
Operating relative humidity (H-H)
20 - 90%
Storage relative humidity (H-H)
20 - 90%
Operating altitude
0 - 3000 m

Certificates

Certification
FCC, UL 497 B, ISTA

Packaging content

Rack mount kit
Yes
Manual
Yes

Safety regulation & standards

Safety
UL 1778, c-UL-us

Weight & dimensions

Width
438 mm
Depth
630 mm
Height
88 mm
Weight
39.8 kg

Packaging data

Package width
258 mm
Package depth
782 mm
Package height
550 mm
Package weight
44.8 kg

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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