Microtek SuperMAX+ 20KVA Dual Input Online UPS – 5-Inch Touch Panel

Microtek SuperMAX+ 20KVA Dual Input Online UPS – Advanced 20KW Power Backup Solution

The Microtek SuperMAX+ 20KVA Dual Input Online UPS is a high-performance, high-frequency uninterruptible power supply developed for commercial offices, professional IT infrastructure, institutional facilities and compatible industrial electronic systems.

Featuring 20KVA/20000W rated output capacity, a 1.0 unity output power factor, true double-conversion technology and a modern 5-inch colour touch panel, the UPS combines reliable power conversion with convenient monitoring and flexible electrical configurations.

The system operates with a ±192–240V DC external battery arrangement, supporting 32 to 40 compatible batteries, and provides a 12A adjustable inbuilt charger.

Manufactured by Microtek, this SuperMAX+ model supports three different input/output phase configurations and dual input functionality, making it suitable for properly engineered power backup projects.

True Double-Conversion Online UPS Technology

The Microtek SuperMAX+ 20KVA Online UPS uses true double-conversion technology to deliver regulated power to compatible connected equipment.

During normal operation, incoming AC power passes through the UPS power conversion system before reaching the protected load.

The inverter continuously supplies the connected equipment, helping reduce the effects of supported electrical disturbances.

If mains electricity becomes unavailable, the external battery bank continues supplying energy to the inverter without a normal online-to-battery switching interruption.

Microtek specifies zero transfer time from normal AC operation to battery mode.

This feature can be important for professional computing systems, networking infrastructure and other electronic applications where an unexpected shutdown could interrupt operations.

20KVA/20000W Capacity with Unity Power Factor

The Microtek SuperMAX+ 20KVA Dual Input Online UPS provides a rated capacity of 20000VA and 20000W.

Its unity output power factor means the rated active power equals the apparent power rating under the manufacturer’s specified operating conditions.

Compared with a conventional 20KVA UPS rated at 0.8 output power factor, this provides a higher rated active-power capacity.

The 20KW rating makes it relevant to suitably sized commercial IT infrastructure, professional computing systems and compatible technical equipment.

Before installation, the connected load must be assessed according to continuous power requirements, operating peaks, phase distribution and startup characteristics.

Rated output in alternative phase modes or special voltage settings should be confirmed before commissioning.

Three-Phase Input and Three-Phase Output

The standard electrical configuration of the Microtek SuperMAX+ 20KVA Online UPS is three-phase input and three-phase output (3:3).

The manufacturer specifies a nominal three-phase input supply of 400V AC with neutral.

The supported output settings include three-phase 380V, 400V and 415V AC, plus a 360V output option.

When configured for 3 × 360V output, the manufacturer specifies derating to 90% of the UPS’s standard output capacity.

This means the selected output voltage can affect the available usable power.

Professional electrical configuration is required to ensure the output matches connected equipment.

Configurable Three-Phase Input and Single-Phase Output

A distinctive feature of SKU 899-431-2002 is the option to configure the UPS for three-phase input and single-phase output (3:1).

This arrangement may be useful in commercial buildings that have a three-phase electricity supply but require protected single-phase power for suitable critical equipment.

The phase configuration must follow Microtek’s approved wiring and commissioning procedures.

The maximum supported load, output voltage and electrical protection arrangements should be confirmed for the selected mode.

The full 20KW rated capacity should not automatically be assumed to remain available in every phase configuration.

Configurable Single-Phase Input and Single-Phase Output

The Microtek SuperMAX+ 20KVA Dual Input UPS also supports an approved single-phase input and single-phase output (1:1) configuration.

This provides flexibility for installations where single-phase operation is required.

However, changing from three-phase to single-phase operation involves significant electrical considerations.

Input supply capacity, wiring, current limits, output capacity and protective devices must all be evaluated.

The installation should be configured and commissioned by qualified personnel according to Microtek’s approved technical instructions.

Dual Input Provision for Power Availability

The Microtek SuperMAX+ 20KVA Dual Input Online UPS includes dual input functionality.

The manufacturer describes this feature as supporting Hot Standby-related power arrangements.

In a suitable UPS design, separate AC input paths can provide flexibility for maintaining an available bypass or alternate electrical source.

The exact function depends on the supported rectifier, bypass and installation configuration.

Dual input should not be interpreted as a guarantee that both AC sources operate simultaneously or that the UPS independently transfers between any two arbitrary supplies.

Professional system design is necessary when using separate power sources.

±192–240V DC External Battery System

The Microtek SuperMAX+ 20KVA UPS uses a split-voltage external battery arrangement.

The nominal DC system supports ±192V to ±240V, depending on the number of installed batteries.

The standard configuration uses 32 compatible 12V batteries, organized according to the manufacturer’s centre-tapped battery connection scheme.

For 32 batteries, the nominal split voltage is approximately ±192V DC.

At the 40-battery configuration, the nominal split voltage becomes approximately ±240V DC.

These values describe the positive and negative sections relative to the battery midpoint.

The complete voltage between the positive and negative DC rails is approximately 384V or 480V, respectively.

The battery bank must be wired exactly as approved by Microtek.

Flexible 32 to 40 Battery Configuration

The Microtek SuperMAX+ 20KVA Dual Input Online UPS supports between 32 and 40 compatible external batteries.

Microtek describes adjustable battery quantities in paired increments for the supported split-bank arrangement.

This flexibility allows appropriately designed battery installations to be planned according to supported DC voltage settings.

However, battery quantity should not be confused with battery energy capacity.

Backup duration also depends on the ampere-hour rating, battery condition, connected load, discharge characteristics and UPS operating efficiency.

An appropriately designed battery system is required to provide the required backup time.

Because the DC battery system operates at hazardous high voltages, installation must be performed by trained professionals.

Intelligent 12 Amp Inbuilt Charger

The Microtek SuperMAX+ 20KVA Online UPS includes a maximum 12 Amp inbuilt battery charger.

The manufacturer specifies adjustable charging current settings from 1A to 12A, in 1A increments.

The documented factory-default setting is 4A.

This allows the charger to be configured according to the selected battery system and supported battery charging requirements.

The charging current should be chosen based on the battery manufacturer’s specifications.

The maximum 12A charger setting is not automatically suitable for every installed battery bank.

Correct charging configuration helps maintain battery readiness and reduce the risk of operating outside approved limits.

5-Inch Colour Touch Panel LCD Display

One of the most attractive features of this model is its 5-inch colour touch panel LCD display.

The touchscreen offers an interactive interface for monitoring and configuring supported UPS operating parameters.

Microtek lists detailed information such as UPS status, connected load percentage, per-phase current, output volt-amperes and output wattage.

The interface also shows battery charging and discharging current, input/output voltage, input/output frequency, temperature information and event logs.

This level of monitoring is valuable for IT administrators, electrical maintenance teams and facility managers.

DSP Technology with Three-Level IGBT Inverter

The Microtek SuperMAX+ UPS incorporates Digital Signal Processing technology and a three-level IGBT inverter topology.

The digital control system supports reliable power conversion, monitoring and electrical regulation.

The three-level inverter design helps improve conversion efficiency and reduce certain electrical losses.

The manufacturer also identifies active input power factor correction for the three-phase input arrangement.

Input power factor is specified as at least 0.99 at full load under the documented conditions.

This should not be confused with the UPS’s unity output power factor, although both are important electrical characteristics.

ECO Mode for Improved Energy Efficiency

The Microtek SuperMAX+ 20KVA Dual Input Online UPS supports ECO mode.

Microtek lists operating efficiencies of approximately 94.5% in AC mode, 98.5% in ECO mode and 93.5% in battery mode for the documented 20KVA Dual Input model.

Higher efficiency can reduce power conversion losses and associated heat generation.

However, ECO mode uses an operating arrangement different from continuous double-conversion operation.

The correct mode should be selected based on the required protection level and the connected equipment’s tolerance for power-source transitions.

Pure Sine Wave Output and Voltage Regulation

The Microtek SuperMAX+ 20KVA UPS delivers pure sine wave output during battery operation.

This is suitable for a range of compatible professional electronic power supplies and electrical systems.

The manufacturer specifies battery-mode output voltage regulation of approximately ±1%.

The output distortion limits are specified as 2% or less for linear loads and 5% or less for non-linear loads.

The UPS supports 50Hz and 60Hz operation within the published frequency conditions.

These capabilities help maintain regulated electrical output for supported equipment.

Parallel Operation with Up to Four UPS Units

The Microtek SuperMAX+ 20KVA Dual Input model supports optional parallel operation.

The June 2025 manufacturer technical brochure lists configurations with up to four compatible UPS units.

It also identifies manufacturer-approved arrangements using a common battery bank or separate battery banks.

Parallel operation can be useful when designing appropriate redundant or higher-capacity power backup systems.

However, the actual capacity and redundancy level depend on the approved configuration.

Parallel communication cables, synchronization hardware, protective equipment and battery arrangements may require additional accessories.

These items must be confirmed before ordering multiple UPS units.

Built-In Maintenance Bypass and Static Bypass

The Microtek SuperMAX+ 20KVA Online UPS includes built-in maintenance bypass and static bypass functionality.

These features support approved service and electrical transfer arrangements.

The manufacturer specifies zero inverter-to-bypass transfer time under documented operating conditions.

However, during bypass operation, the connected equipment may receive power directly from the bypass source.

Therefore, bypass operation should be carried out only under approved conditions by qualified personnel.

Emergency Power Off and Electrical Protection

The Microtek SuperMAX+ Series includes an Emergency Power Off (EPO) function.

This can be integrated into a suitable site electrical safety system.

The manufacturer also specifies surge protection at the input stage and C3-level electromagnetic interference protection.

Overload-handling capability is documented for both normal AC and battery modes.

These functions contribute to the UPS’s electrical protection architecture.

However, external circuit breakers, grounding, battery DC protection and appropriate cable sizing remain essential.

Generator Compatibility

The Microtek SuperMAX+ 20KVA Dual Input Online UPS supports compatible generator power.

This makes it relevant to installations where a standby generator provides an additional source of electrical energy during prolonged outages.

Generator output voltage, frequency, load response and capacity must meet the UPS input requirements.

Battery charging demand should also be included when calculating the generator rating.

Professional system assessment is recommended for generator-backed installations.

Communication and Network Monitoring

The UPS provides RS232 and USB interfaces for supported communication and monitoring applications.

Optional SNMP management can provide remote monitoring through compatible network software or a web browser.

These capabilities help organizations monitor electrical equipment within professional IT environments.

Optional communication accessories should be included in the quotation only when required.

The standard touchscreen remains useful for local monitoring and supported UPS configuration.

Accessories Not Included with the UPS

The Microtek commercial description specifically states that battery links, input cable and DC battery breaker are not included with this model.

These accessories should be selected separately according to the final electrical installation.

The external battery bank, battery rack, suitable protection devices, output cables and optional parallel accessories should also be confirmed in the purchase quotation.

Clarifying these items early helps prevent incomplete deliveries and unexpected installation costs.

Suitable for Commercial and IT Infrastructure Applications

The Microtek SuperMAX+ 20KVA Online UPS is suitable for properly designed commercial power backup installations.

Potential applications include compatible server infrastructure, professional workstations, networking systems, office IT equipment, institutional facilities and selected technical electronics.

Its configurable phase arrangements make it relevant to different approved electrical distribution requirements.

However, specialized machinery, large motor-driven systems and regenerative loads require separate technical evaluation before connection.

The complete installation should be planned according to electrical load, battery backup time, power distribution requirements and applicable safety standards.

Compact Tower Cabinet Design

The Microtek SuperMAX+ 20KVA Dual Input UPS uses a tower-style cabinet.

The manufacturer lists dimensions of approximately 630 × 250 × 826 mm and a net UPS weight of 43kg, excluding the external batteries.

Its tower arrangement is suitable for appropriately designed floor installations with adequate cooling and maintenance access.

Battery racks, breakers and external electrical accessories require additional installation space.

The actual cabinet revision and installation dimensions should be confirmed before site preparation.

Buy Microtek SuperMAX+ 20KVA Dual Input Online UPS from Aadinath Peripherals

At Aadinath Peripherals & Consumables, we supply professional IT hardware, networking equipment, computers, UPS power backup systems and infrastructure products for businesses and institutions.

Our team assists customers with power backup procurement, technical enquiries, compatible battery requirements and bulk quotations.

For detailed manufacturer specifications, review the official Microtek SuperMAX+ 20KVA Dual Input Online UPS brochure.

Customers can also explore our range of IT hardware and power backup solutions for related business equipment requirements.

For pricing, stock availability, battery configurations and bulk procurement enquiries, email sales@aadinathperipherals.com or call +91 90760 00285.

Choose the Microtek SuperMAX+ 20KVA Dual Input Online UPS (899-431-2002) for 20000W rated capacity, a 5-inch colour touch display, configurable 3:3/3:1/1:1 phase modes, 12A charging, 32–40 external batteries and manufacturer-supported parallel operation.

Technical Specifications

Specification	Details
Brand	Microtek
Series	SuperMAX+
Manufacturer Model	SuperMAX+ 20KVA Dual Input, 5″ Touch Panel
Manufacturer Part Number	899-431-2002
UPS Type	Online UPS
Technology	True Double Conversion, Three-Level IGBT
Rated Capacity	20000VA / 20000W
Output Power Factor	1.0
Standard Phase Configuration	3 Phase Input / 3 Phase Output
Additional Phase Configuration	3 Phase Input / 1 Phase Output
Additional Phase Configuration	1 Phase Input / 1 Phase Output
Dual Input Provision	Yes
Nominal Input Voltage	3 × 400V AC
Input Voltage Range, 50% Load	190–520V AC, 3 Phase
Input Voltage Range, Full Load	305–478V AC, 3 Phase
Input Frequency	46–54Hz or 56–64Hz
Input Power Factor	≥0.99 at Full Load
Input THDi at Full Load	Less than 4% R-Load / 5% RCD Load
Output Voltage	3 × 360 / 380 / 400 / 415V AC
Output at 360V	90% Capacity Derating Required
Battery Mode Voltage Regulation	±1%
Synchronized Frequency	46–54Hz or 56–64Hz
Battery Mode Frequency	50Hz ±0.1Hz or 60Hz ±0.1Hz
Output Waveform	Pure Sine Wave
Crest Factor	3:1 Maximum
Output THD – Linear Load	≤2%
Output THD – Non-Linear Load	≤5%
AC-to-Battery Transfer Time	0ms
Inverter-to-Bypass Transfer	0ms under specified conditions
AC Mode Efficiency	94.5%
ECO Mode Efficiency	98.5%
Battery Mode Efficiency	93.5%
Battery Voltage	±192–240V DC
Total DC Voltage Between Rails	384–480V Nominal
Standard Battery Quantity	32 × 12V
Adjustable Battery Quantity	32–40, approved paired increments
Battery Type	Compatible VRLA / Lead-Acid
Battery Location	External
Maximum Charging Current	12A
Adjustable Charging Current	1A–12A in 1A Steps
Default Charging Current	4A
Display	5-Inch Colour Touch Panel LCD
ECO Mode	Yes
Frequency Converter Mode	Yes
Emergency Power Off	Yes
Generator Compatibility	Yes
Maintenance Bypass	Built-In
Static Bypass	Built-In
Parallel Capability	Up to 4 Compatible Units
Parallel Battery Arrangement	Common or Separate, per approved configuration
Isolation Transformer	Not Listed as Inbuilt
Communication	RS232 / USB
Optional Network Monitoring	SNMP
EMI Protection	C3 Level
IP Rating	IP20
Dimensions (D × W × H)	630 × 250 × 826 mm
Net UPS Weight	43kg, Excluding Batteries
Operating Temperature	0–40°C
Operating Humidity	Less than 95% RH, Non-Condensing
Installation Altitude	Below 1000m without altitude-related review
Noise Level	Less than 60dB at 1m
Battery Links	Not Included
Input Cable	Not Included
DC Battery Breaker	Not Included
Warranty	2 Years per February 2026 price list

Microtek SuperMAX+ 20KVA Dual Input Online UPS – 5-Inch Touchscreen