Vertiv Liebert GXTMT+ 20 kVA

20000 VA · 18000 W W · Double-conversion (Online)

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Capacity 20000 VA
Wattage 18000 W
Topology Double-conversion (Online)
Output waveform Sine/Pure sine

Vertiv Liebert GXTMT+ 20 kVA is a double-conversion (online) UPS rated 20000 VA (18000 W). Add up what you plug in (PC, monitor, router) and keep it under about 70% of the watt rating, so it doesn't run flat in seconds during a power cut. It came out in 2026.

Released: 2026-04-23

Specifications

Key specs

Capacity: 20000 VA
Wattage: 18000 W
Topology: Double-conversion (Online)
Output waveform: Sine/Pure sine
Released: 2026-04-23
Part number: 536600203000

Features

UPS topology: Double-conversion (Online)
Output power capacity: 20 kVA
Output power: 18000 W
Waveform: Sine/Pure sine
Input operation voltage (min): 305 V
Input operation voltage (max): 478 V
Input frequency: 46/54 Hz
Output operation voltage (min): 208 V
Output operation voltage (max): 240 V
Number of input phases: 3
Number of output phases: 1
Efficiency: 92%
Efficiency (ECO mode): 97%
Input power factor: 0.99
Crest factor: 3:1
Emergency Power Off (EPO): Yes
Noise level: 60 dB
Surge protection: Yes
Power protection features: Overload
Audible alarm(s): Yes
Audible alarm modes: Fault, Low battery alarm

Ports & interfaces

USB port: Yes
Serial interface: Yes
Serial interface type: RS-232
RS-232 ports: 1

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Battery

Charging current: 12 A

Design

Form factor: Tower
Cooling type: Active
Product colour: Black
Display type: LCD
LED indicators: Fault, Power

Operational conditions

Operating temperature (T-T): 0 - 50 °C
Operating relative humidity (H-H): 0 - 95%
Storage relative humidity (H-H): 0 - 95%

Weight & dimensions

Width: 250 mm
Depth: 592 mm
Height: 826 mm
Weight: 45 kg

Check the manufacturer's page before buying.

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About this product

Liebert GXT MT+ Series systems is true double conversion online UPS systems designed to provide with a capacity of 6/10/20 kVA. Liebert GXT MT+ units feature total isolation of the load from the mains - isolating input and output sections, and making the systems ideal for Data Networks / Small Data Centers/VOIP Applications application. The units support hot standby configuration, making them suited for critical applications like banks.

Datasheet (PDF)

Liebert GXTMT+ 20 kVA vs similar UPS

	Vertiv Liebert GXTMT+ 20 kVA	Salicru SLC-20-CUBE3+ PS 62AB356	CDP UPO33-20PF365 20KVA/18KW PF 0.9, Online 3-phase UPS Low Freq. 208 Vac Input	CyberPower SM20KPM 20000 VA UPS
Capacity	20000 VA	20000 VA	20000 VA	20000 VA
Wattage	18000 W	18000 W	18000 W	18000 W
Topology	Double-conversion (Online)	Double-conversion (Online)	Double-conversion (Online)	Double-conversion (Online)
Output waveform	Sine/Pure sine	—	Sine	Pure sine
Released	2026	2025	2025	2024