20KVA 208/220V 3-Phase Wye Modular Online UPS System, MAT-VX20KLVSYS

In stock
( Contact Sales )

Capacity: 20000VA / 18000W (20kVA / 18kW)
Topology: Online double-conversion
Waveform: Sine wave
Voltage & Configuration: 120/208V or 127/220V 3-phase Wye

• 20KVA power module (max. 60KVA capacity per cabinet)
• DSP controlled technology and high-frequency design for optimal performance
• 92.5% high efficiency rating in Line Mode
• 1.0 high output power factor
• Low MTTR (mean time to repair) simplifies maintenance and replacement
• Fast charging current up to 8A per power module
• Built-in maintenance bypass switch
• High overload threshold: 110% for 60 minutes, 125% for 10 minutes, 150% for 1 minute
• 5.6-inch LCD with comprehensive system conditions

The MatrixVX 33 Series is a modular 3-phase Wye double-conversion online UPS with DSP-controlled technology for reliability and stability of the control circuit. The modular system design allows for scalability of the UPS system while keeping future growth in mind. As your business grows, so will the demand for a UPS system that can grow with your business needs. A modular system allows you to keep the cost of ownership aligned with current requirements to only pay for what you need while keeping future growth in mind.


Protects From
Brief blackouts
Power sag
Power surge

Line noise

Frequency variation
Switching transient
Harmonic distortion


Typical Applications
Server rooms
Surveillance center

Commercial equipment
Networking equipment

Telecom equipment
Small / mid-size data center


Main Features
High Efficiency in Online Double-Conversion Topology
92.5% Line Mode efficiency reduces the overall total cost of ownership with the reliability of online double-conversion topology. The power factor >0.99 means less power loss for better performance and power efficiency to connected loads.

DSP Controlled Technology
DSP (digital signal processor) controlled technology for high reliability, accuracy, and efficiency.

Modular Design for Scalability
The modularization design of this series was made with flexibility to expand the power system and backup time as demand changes in the future. Each UPS cabinet holds up to three 20KW power modules for total 60KW capacity. If one power module fails, the other two power modules automatically take over to continue supplying power to mission critical equipment. The front-facing trays, control panels, and connectors allow for easy access during installation, maintenance, and repair.

Output Voltage Regulation <1%
The UPS regulates the output voltage to be within 1% of the set output voltage. Voltages outside acceptable ranges can cause electronics and electrical components to overheat and may cause premature failure of the devices. A precise output voltage is important for sensitive electronic equipment such as ones that require calibration for accuracy and also sensitive electronics are more susceptible to damage when receiving power outside its input range.

High Overload Threshold Threshold
Keeps the UPS running in Line Mode when overloaded for a period time. This series will keep running in Line Mode up to 60 minutes at 110% overload capacity and up to 1 minute at 130% overload capacity.

Low MTTR (Mean Time to Repair) and Hot Swappable Modules
The modular design simplifies and expediates replacement, maintenance, and repair of the UPS modules without shutting off the UPS is convenient and cuts down on servicing costs and any lost revenue from being offline.

2A to 8A Battery Charger
Select the battery charger up to 8A based on the number of battery banks connected to the UPS for faster recharge times.

EMI / RFI Filter
EMI / RFI filter suppresses electromagnetic noise and radio frequency interference transmitted from AC power.

Emergency Power Off (EPO) Tab
Instantly shut off the UPS and prevent the UPS from supplying power in the event of an emergency.

Compact Design
Space-saving design with high performance capabilities with flexibility to expand in size as business needs increase.

Maintenance Bypass Switch (MBS)
Safely service the UPS while keeping connected equipment powered for zero downtime with the built-in MBS.

Expandable Battery Runtime
Add up to 4 external battery banks to extend the battery runtime of your UPS.

Cold Start Capable
Turn on the UPS even without utility power as long as there is sufficient battery power.

5.6-inch LCD with Comprehensive System Conditions
A 5.6-inch graphic LCD screen shows real-time status information of the UPS power conditions including the voltages, capacity, battery, faults, event logs, settings, and more, while the intuitive design provides comprehensive system information and setting of the UPS conditions from the display.

Intelligent Slot
For use with a network management card to remotely monitor and control the UPS from a web browser.

Power Management Software
RS232 and USB ports connect directly between UPS and computer to control and monitor the software. Add an optional SNMP card for remote power management.

Optional Accessories (Not Included)
• Add-on Power Module - Additional 20KVA power module to expand overall UPS system capacity, see model # MAT-VX20KLV
• Add-on External Battery Cabinet - See model # EBC-VXNB for the battery cabinet.
• Network Management Card - For remote power monitoring. See model number #SNMP3-2 for compatibility with this UPS series.

1-year equipment warranty and 1-year battery warranty. See Terms and Conditions, and Warranty Policy pages for additional information.

WARNING: The batteries, battery posts, terminals, and related accessories can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. Wash hands after handling. For more information, go to www.p65warnings.ca.gov.
Capacity 20kVA / 18kW (20000VA / 18000W)
Cabinet Capacity 3 slots (add up to 3 x 20kVA modules)
Phase 3-phase in / 3-phase out
Topology Online double-conversion
Voltage & Configuration 3 x 120/208Vac Wye (3Ph + N + G) 3 x 127/220Vac Wye (3Ph + N + G)
Voltage Range 121 - 253 at < 70% load
156 - 253Vac at 100% load
Frequency 50 / 60Hz (auto sensing)
Frequency 50 / 60Hz (auto sensing)
Power Factor >0.99 at 100% load
THDi <3% at 100% load
Voltage & Configuration 3 x 120/208Vac Wye (3Ph + N + G) 3 x 127/220Vac Wye (3Ph + N + G)
Frequency Range
(Synchronized Range)
50Hz: 46 - 54Hz
60Hz: 56 - 64Hz
Voltage Regulation (Steady State) < +/- 1% typical (balanced load); < +/- 2% (unbalanced load)
Voltage Regulation (Transient) < +/- 5% typical
Voltage Balance  
THDv for Linear-Load <2% at linear load
<4% at non-linear load
Transient Reponse  
Transient Recovery Time  
Phase Displacement  
Power Factor > 0.99 at 100% load; 0.98 at 50% load
Overload Threshold Line Mode: 110%: up to 60 minutes; 125%: up to 10 minutes; 150%: up to 1 minute: > 150%: up to 200ms
Wave Form (Battery Mode) Sine wave
Line To/From Battery 0ms
Inverter To/From Bypass < 20ms
Line Mode Up to 92.5% at full load with batteries fully charged
Battery Mode  92.5%
ECO Mode 97% at full load with batteries fully charged
Quantity & Size 12V / 9Ah x 20 pieces x 6 strings (total 120 pieces)
Nominal Batteries Voltage 120Vdc
Float Charging Voltage 2.25V / cell
Boost Charging Voltage 2.35V / cell
Temperature Compensation Yes
Charging Current 2A to 8A (adjustable)
Emergency Power Off (EPO) Yes
Overload Protection Yes
Overcharge Protection Yes
Surge Suppression Yes
EMI / RFI Filter Yes, full time
MBS Yes, built-in maintenance bypass switch to safely route electricity during maintenance and servicing
Parallel Option Yes, up to 2 additional for N+2 or N configuration
ECO Mode Yes
Temperature Sensor Yes, with add-on Temperature Sensor
USB Port Yes, for power management software to control and monitor the UPS conditions
RS232 Port Yes, for firmware updates only
Software Compatible with Windows 10/8/7, Server 2012 R2 / 2008 R2, Linux 32-Bit / 64-Bit, Sun Solaris, IBM Aix, Compaq True64, SGIIRIX, FreeBSD, HP-UX, mac
Intelligent Slot Yes, for SNMP3-2 card (not included) for remote power management
LCD Screen Yes, 5.7-inch screen shows Input/Output Voltages, Battery Level, Load Level, Fault, configuration, status codes, event logs, settings, and more
Audible Alert Yes
Warranty 1-Year: Equipment and Battery Warranty. See the Terms & Conditions, and Warranty Policy pages for additional information.
Installation Location For indoor, temperature-controlled location free of contaminants only
Cooling Built-in fan
Operating Temperature 0°C up to +40°C / +32°F up to +104°F
(Note: Output capacity derates to 90% at 35°C / 95°F and 80% at 40°C / 104°F)
Operating Humidity <95% non-condensing
Noise <68.2dB at 1 meter
Operating Altitude <1000 meters
(Note: Do not operate in locations above 1000 meters from sea level)
Color Black
Steering Casters Yes
Leveler Legs Yes, for stability at installation location
Rack Height 30U
(UPS Cabinet: 15U;
Battery Cabinet: 15U)
Dimensions (DWH) 1000 x 515 x 1415 mm / 20.3 x 39.4 x 55.7 in
(UPS Cabinet: 1000 x 515 x 760 mm / 20.3 x 39.4 x 29.9 in;
Battery Cabinet (without wheels): 1000 x 514 x 655 mm / 20.3 x 39.4 x 25.8 in)
Weight 616 kg / 1358.05 lbs
(20KVA Power Module: 34 kg / 75 lb;
UPS Cabinet: 195 kg / 430 lb;
Battery Cabinet (with batteries): 387 kg / 853.3 lb)


Product specifications are subject to change without further notice. Maruson assumes no responsibility, and disclaims all liability, for any damages that may result from the use of this information or for any errors or omissions. Battery backup time varies with equipment, configuration, battery age, temperature, etc.

TIME (Minutes)

Download here.

User Manual
Download here.

Download here.

You must connect the USB from your UPS to your computer to use the software.

Compatible Operating Systems
Windows OS: Windows 10/ Windows 8/ Windows 7/ Windows Server 2016/ Windows Server 2012/ Windows Server 2012 R2/ Windows Server 2008/ Windows Server 2008 R2
mac OS: Mac OS 10.6/ 10.7/ 10.8/ 10.9/ 10.10/ 10.11
Linux 32-Bit and 64-Bit: Fedora 7/Redhat Enterprise 7.5/Centos 7/Open SUSE 11.4/Debian 7/Ubuntu 18.10
Virtual Machines (Agent and Client): VMware ESX/ESXi 6.5


Not sure which model to purchase? Or, need help with a purchased item? Let us know how we can help.


Register your product for warranty coverage and expediated service requests.


Find additional information on our warranty policy.