Get Quote

Liebert S600E, 20KVA

Liebert S600E 20kVA UPS

Liebert S600E 20kVA UPS Vertiv Three-Phase Online UPS with Isolation Transformer

Liebert S600E 20kVA UPS is a fully digital, highly reliable online double-conversion UPS designed to provide clean and consistent power for data centres, server systems, network infrastructure, automation equipment, precision instruments and other critical applications. The system delivers 20kVA and 20kW through a three-phase input and three-phase output architecture.

20kVA / 20kW output Input isolation transformer Up to four parallel units
VERTIV LIEBERT S600E
IN UPS OUT BAT
RECTIFIER INVERTER BYPASS
20kVA / 20kW • 3-IN / 3-OUT
POWER SYSTEM
ISOLATION
TRANSFORMER
BATTERY SNMP
TOWER SYSTEM
Conceptual illustration — Liebert S600E 20kVA tower UPS
20kVA 20kW active output
20kVA / 20kW Unity power output
>92% Online-mode efficiency
>98% 20kVA ECO efficiency
4 Units Parallel capability
Liebert S600E 20kVA UPS Overview

Three-Phase Power Protection for Critical Applications

Liebert S600E 20kVA UPS is a fully digital, three-phase online UPS developed to protect sensitive systems from interruptions, voltage fluctuations, electrical noise, harmonics, surges and other utility-power disturbances.

The UPS provides a 20kVA rating with unity output power factor, enabling delivery of up to 20kW of active power. This makes the system suitable for modern servers, network infrastructure, automation equipment and other power-factor-corrected loads.

IGBT-based double-conversion technology continuously processes incoming AC power through the rectifier and inverter. The connected critical load therefore receives regulated output voltage and frequency during normal utility operation.

An inbuilt isolation transformer is positioned on the input side. It provides galvanic isolation within the UPS architecture and helps protect the UPS and connected equipment from significant voltage disturbances.

A wide input-voltage range allows the Liebert S600E to continue operating from utility power during unstable mains conditions. This reduces unnecessary battery use and helps preserve backup capacity.

The UPS can operate in a parallel configuration with up to four compatible units. Parallel arrangements can be used to increase available capacity or introduce N+1 system redundancy.

Integrated Ethernet, SNMP, Modbus and serial communication provide local and remote visibility of system status, alarms, measurements and recorded events.

Liebert S600E 20kVA UPS Features

Robust Power Protection with Integrated Monitoring

The Liebert S600E combines digital power conversion, transformer isolation, scalable parallel operation and intelligent system monitoring.

Online Double Conversion

Continuously processes utility power through the rectifier and inverter before supplying the connected critical load.

Inbuilt Isolation Transformer

An input-side isolation transformer provides electrical separation within the UPS power path.

Unity Output Power Factor

The 20kVA UPS can deliver 20kW of active power to modern critical electronic loads.

Parallel UPS Operation

Up to four compatible units can operate in parallel for additional capacity or configurable N+1 redundancy.

Graphical LCD Display

The user interface displays measurements, power status, alarms and stored event information.

Integrated Network Monitoring

Ethernet, web, SNMP and Modbus connectivity provide remote operating and alarm visibility.

3-PHASE AC Input
ISOLATION Transformer
RECTIFIER IGBT
DC BUS Battery
INVERTER PWM Output
3-PHASE Critical Load
INTEGRATED BYPASS STATIC + MAINTENANCE
DSP
Digital Control
PFC
Power Correction
Three-Phase Online Power Architecture Input power passes through transformer isolation, rectification and inversion before reaching the critical three-phase load. Conceptual illustration — electrical power flow
Liebert S600E 20kVA UPS Technology

Fully Digital Three-Phase Double-Conversion Protection

The Liebert S600E 20kVA UPS combines transformer isolation, IGBT rectification, PWM inverter technology and digital control to provide regulated power for critical loads.

  • 20kVA and 20kW rated output
  • Three-phase input and output
  • IGBT-based double conversion
  • PWM online UPS technology
  • Input-side isolation transformer
  • Unity output power factor
  • 0.99 input power factor
  • Input THDi below 5%
  • Integrated static bypass
  • Integrated maintenance bypass
Liebert S600E 20kVA UPS Applications

Three-Phase UPS Protection for Critical Infrastructure

Data Centres Online three-phase power protection for selected server, storage and network loads.
Server Farms Regulated backup power for server clusters and supporting digital infrastructure.
Network Infrastructure Reliable power for switching, routing, security and communication equipment.
Automation Systems Power continuity for industrial controllers, automation computers and process systems.
Precision Instruments Clean power for analytical, measurement and sensitive laboratory equipment.
Control Rooms Continuous power for monitoring, control and operational technology systems.
Telecommunications Three-phase UPS protection for network and communication infrastructure.
Light Industrial Systems Reliable backup power for compatible production and industrial electronic equipment.
Liebert S600E 20kVA UPS Configuration

Power, Battery and Monitoring Technology

The 20kVA configuration combines transformer isolation, parallel operation, configurable batteries and integrated network-management capabilities.

Liebert S600E 20kVA UPS 20kVA / 20kW Three In / Three Out Online Double Conversion IGBT Rectifier PWM Inverter Isolation Transformer Unity Output PF 0.99 Input PF Input THDi Below 5% Four-Unit Parallel N+1 Capability Static Bypass Maintenance Bypass Graphical LCD 256 Stored Events Integrated Ethernet Web Monitoring SNMP Modbus RS-232 / USB Lithium-Ion Compatible Common Battery Support IP20
Liebert S600E 20kVA UPS Technical Information

Liebert S600E 20kVA UPS Specifications

Battery runtime depends on the connected load, battery quantity, battery type, battery condition and operating environment.

Manufacturer
Vertiv
Brand
Vertiv Liebert
Product model
S600E 20kVA
Product name
Liebert S600E 20kVA UPS
Product type
Three-phase online double-conversion UPS
Rated capacity
20kVA / 20kW
Technology
IGBT-based, PWM double-conversion online UPS
Phase configuration
Three-phase input and three-phase output
Installation mode
Tower
Isolation transformer
Inbuilt at the input side
Parallel operation
Up to four compatible units with N+1 configuration
Rated input voltage
400V AC, three-phase, four-wire
Input range at 100% load
305V to 498V AC
Input range at 50% load
180V to 498V AC
Rated input frequency
50Hz or 60Hz
Input frequency range
40Hz to 70Hz
Input power factor
0.99 at full load
Input-current distortion
Below 5% THDi
Rated output power
20kVA / 20kW
Output voltage
380V, 400V or 415V AC, three phase
Output power factor
1.0 unity power factor
Frequency synchronisation
Rated frequency ±3Hz; configurable from ±0.5Hz to ±5Hz
Crest factor
3:1
Output-voltage distortion
Below 2% with linear load
Voltage regulation
1%
Dynamic recovery time
40 milliseconds
Utility-mode overload, 105–125%
Up to five minutes at 25°C
Utility-mode overload, 125–150%
Up to one minute at 25°C
Utility-mode overload above 150%
More than 200 milliseconds at 25°C
Battery-mode overload, 105–125%
Approximately 30 to 60 seconds at 25°C
Separate bypass
Inbuilt
Static bypass
Inbuilt
Maintenance bypass
Inbuilt
Online AC-to-AC efficiency
Above 92%
ECO-mode efficiency
Above 98% for the 20kVA model
Inverter efficiency
Above 94%
Battery types
Sealed lead-acid or tubular battery configurations
Standard battery quantity
32 batteries by default
Configurable battery quantities
24, 32 or 40 batteries; the 24-battery configuration requires UPS derating
Battery charging capacity
13A
Common battery support
Available
Lithium-ion compatibility
Compatible with supported lithium-ion battery systems
Battery testing
Automatic and manual self-diagnostic testing
Mains-to-battery transfer
0 milliseconds
Synchronous inverter-to-bypass transfer
Up to 0 milliseconds
Asynchronous bypass transfer
Up to 20 milliseconds
Display
Graphical gravity-sensing LCD
Event storage
Up to 256 events
Ethernet
Built-in Ethernet port
Web monitoring
Integrated web and SNMP monitoring
Intelligent-card compatibility
Compatible with supported SIC and RDU_SIC cards
Serial communication
Smart RS-232 and USB
Modbus
Integrated through the multifunction port
Management software
Site-monitor compatibility
Operating temperature
0°C to 50°C, with output derating at elevated temperatures
Storage temperature without batteries
−40°C to 70°C
Storage temperature with batteries
−25°C to 55°C
Relative humidity
5% to 95%, non-condensing
Operating altitude
Up to 3,000 metres; derating applies above 3,000 metres
Noise level
Below 65dB
Dimensions
335 × 654 × 1300mm, width × depth × height
Approximate weight
175kg for the 20kVA model
Cooling
Forced-air cooling
Ingress protection
IP20
Colour and finish
Powder-coated black textured finish
Cable entry
Rear-bottom cable entry
Recommended applications
Data centres, server farms, edge networks, telecommunications, automation systems, analytical instruments, workstations and control rooms
Liebert S600E 20kVA UPS FAQs

Frequently Asked Questions About Liebert S600E 20kVA UPS

Important information about power capacity, phase configuration, parallel operation and battery options.

What is the output capacity of the Liebert S600E 20kVA UPS?

The system has a 20kVA rating and unity output power factor, allowing it to provide up to 20kW of active output power.

Is the Liebert S600E 20kVA UPS a three-phase system?

Yes. The 20kVA version uses a three-phase, four-wire input and provides a three-phase 380V, 400V or 415V output.

Can multiple Liebert S600E UPS units operate in parallel?

Yes. Up to four compatible units can operate in parallel for capacity expansion or an N+1 redundancy arrangement.

Which battery types are compatible with the Liebert S600E?

The system supports compatible sealed lead-acid, tubular and lithium-ion battery configurations, subject to the selected battery arrangement.

Liebert S600E 20kVA UPS Architecture

Tower UPS, Monitoring and Parallel-System Views

Explore the tower cabinet, network-management interface and scalable parallel UPS arrangement.

Request Liebert S600E 20kVA UPS Pricing

Contact Intermax for Liebert S600E 20kVA UPS pricing, availability and product information.

Contact Intermax

Get Quote