Three Phase Isolated Hybrid UPS
Three Phase Isolated Hybrid UPS
Three Phase Online Line Isolated Hybrid UPS System 12.5 KVA to 125 KVA
Features :

LSP 4000 series UPS includes the 10 kVA to 600 kVA (3 phase input & 3 phase output) double conversion On-Line UPS with an isolation transformer at Output. The Load is supplied continuously by the inverter with clean, stabilized and regulated sine wave output power. Input & Output filters increase the immunity of load from power disturbances and surges.

LSP 4000 series ups used high-speed microprocessor (MCU) and Programmable logic device (CPLD) program which are controlled by software. It brings in the sixth generation low-exhaust and big-power IGBT and static switch as power components. Which enter into deduce digital ages of classic legend, bring up with the big capacity, high reliability, stability of function to reside global top-grade level. This series product combines the world’s newest control spare parts and the most advanced software.

LSP 4000 series ups entirely break through the technical bottleneck in traditional simulation age, it ingeniously adopt the digital control technology and high-precision SMD technology to assure ultra-high system stability and to fully acclimate various grid environment.


Single-machine capacity is ranging from 10kVA to 600kVA, which is widely used in telecom, bank ATM, bond agent, transporting, utility, manufacture, etc.

Digital control technique

  1.  Advanced digital circuit over stable operation: LSP 4000 series UPS entirely break through the technical bottleneck of the industry, it implemented extraordinary innovation with the advanced digital circuitry instead of traditional simulation age. Its High-speed microcontroller and programmable logic device (CPLD) characteristic implement more perfect circuit control, parameters setting and operational management to improve more powerful self-verifying and self-detecting function. Full wave sampling technique to enable quick fault analysis and rapidly judge to all discrete circuits in board and meanwhile to mitigate wave distortion and stability which are caused by digital transformation in order to ensure super steady system running

2.       Intelligent battery management, endurable and free from worry: LSP 4000 series imported advanced intelligent battery management system to achieve automatic adjusting battery charging current parameter according to users' battery configuration, the management of boost floating charging switch, temperature compensation charge-discharge which according to power supply environment in addition. LSP 4000 series is capable of implement surveillance management and maintenance of programmable time charge-discharge to battery operation-state through the HMI port. Intelligent battery management not only reduce the burden of administrator, but also extend the usage of battery over 55% more.

3.       Intelligent surveillance system, full guardian: The microprocessor of the system implement uninterrupted on-line surveillance to all the circuit status which include power supply, breakers and fuses. While failure happened, the surveillance system will instantly alert the administrator, synchronously to start UPS overall-protect function.

4.       Multiple redundancy: Adopted all-digital control technology, realized multi-UPS parallel redundancy.

Advanced agenda management software

UPS self-own agenda management software, enables users carry out agile timing on/off, battery charge-discharge and even-float charging through self-programming, and make UPS more user-friendly.

High precision SMD technology

LSP 4000 series adopted high precision SMD technology instead of traditional plug-in circuit technology, improved the circuit reliability and running precision.

Adopted 4 layer circuits and high precision SMD component, completely eliminated jamming caused by sundry high frequency signals, chip modules can work without jamming, anti-jamming ability greatly improved thereby.

LSP 4000 series, with the help of SMD technology, can stand higher temperature, work more precisely, better filtering and more durable, life span extended by 80%.

The 6th generation IGBT inverter technology

IGBT is featured by superior prompt switching, is able to work under high-voltage and high-current, and is driven by low voltage and small control power; the 6th generation IGBT has the nature of lower saturation voltage drop, higher efficiency of inverter, lower heat, more reliable.

Ultra-distinct interface information processing technology

  1.  Audio alert
  2. User-friendly touch backlight screen LCD display, flow chart running state visual display, intelligent icon button, tabular data record and event log, English-Chinese optional menu.
  3. Visual LED indicator: workflow indicator, can be easily and clearly understood.

Environment friendly and energy saving technology know-how

Estimated by scientific life cycle assessment, the excellent aging resistance touch screen panel and the fluorocarbon treated chassis the LSP 4000 series adopted made it durable and artistic in appearance. Disassemble modular design made it easy to maintain and resource saving. The new-type axial fan provides fast heat-emission. No circulation control circuit and the green rectify and inverter technology provide clean energy. Adopting advanced digital circuits and high precision SMD technology, the complete machine extended by 80%.

Other merits in performance

  1. Excellent load characters: Completely fulfil saltus from 0-100% without switching to bypass, and safeguard stable output.
  2. Thorough protection: Input-output over-low voltage protection, input surge protection, phase protection, battery overcharge-over discharge protection, output overload shortcut protection, overheat protection and alerting.
  3. High-performance dynamic characters: Adopting Instantaneous control mode and valid value feedbacks control, implemented high dynamic regulation, minish output voltage distortion.
  4. 3 phases separately adjustment, balance stabilizing: 3 phases control separately, realized control of instantaneous overload balance, 100% unbalance load output is possible.
  5. Optional input harmonic filter or 12 pulse wave rectifier: Restrain input harmonic pollution, enhance UPS input power factor, reduce input harmonic current.
  6. Individualized settings: Can be set as per users' requirement, UPS, ECO energy saving mode, EPS mode is optional.



LSP 4012K, 4025K, 4050K, 4075K, 4100K, 4125K

Nominal Capacity (KVA)

12.5, 25, 50, 75, 100, 125 KVA

Working Mode

Low Frequency Double Conversion True Online


3 Phase (3L+N+G)

Input Power Factor

0.9 (6pulse Rectifier Filter), 0.96 (12pulse Rectifier Filter)

Rectifier (Input)

Input Nominal Voltage

380VAC, 400VAC, 415VAC or Optional 200VAC, 208VAC, 220VAC



Input Nominal Frequency

50Hz±10%, 60Hz±10%

Input Overtone Current

6pulse Rectifier<30%, 12pulse Rectifier Filter<5%

Output Ripple Wave


Soft Start

0~100% 5Sec


Charge Mode

Constant current first then constant voltage, charge with temperature compensation, automatic switch of even charge and float charge, programmable timing battery charge-discharge automatic maintenance

Float Charging Voltage


Equalized Charging Voltage


Temperature Compensation Voltage

-03mV/(Cell Battery)

Charge Current

0.1C (Automatic adjust according to battery capacity)
Example: 100Ah battery, The charge current is setted 10A, or according the charge time customer need



Maintenance Free Lead-acid Battery, Optional Lithium Battery


7~999AH settable (capacity vary with power)

Battery Number

384VDC(12v 32pcs or 2v 192pcs), Optional 360VDC (12v 30pcs, or 2v 180pcs)

Inverter (Output)


3 Phase (3L+N)

Output Power Factor


Nominal Voltage

380VAC, 400VAC, 415VAC or Optional 200VAC, 208VAC, 220VAC

Output Voltage Stability

±1%(Steady Load), ±3%(Fluctuation Of Load)

Frequency Stability

50Hz, 60Hz<±0. 5% ( Asynchronous )

Crest Factor

> 3:1

Output Waveform Distortion Degree

Sine Wave, Linear Load < 3%; Non-Linear Load<5%

Dynamic Feature

Transient Voltage<±5%jump form 0% to 100% ), Instant Recovery Time<10ms

Unbalance Load Voltage

< ± 5%

Overload Protection

115% Normal Work, 125% 1min, 150% 1s

Invertor Efficiency

92% (Full Load)




Input Nominal Voltage

380VAC, 400VAC, 415VAC or Optional 200VAC, 208VAC, 220VAC

Output Nominal Voltage

380VAC, 400VAC, 415VAC or Optional 200VAC, 208VAC, 220VAC

Transfer Time

0ms(Adopted static switch )

Protection Function

Input Protection

Voltage, Frequency Ultra limit, Phase Wrong, Phase Lost

Output Protection

Overcurrent, Short Circuit, Power Factor Low

Battery Protection

Over-charge, Over-discharge

Overheat Protection

Environmental Thermal, Inverter Overheat Protection

Hardware Fault Protection

Auxiliary power supply abnormal, breaker trip, fuse break, power device over-current or overvoltage

Systems Parameters

Economic Running Mode

Economic mode available, overall efficiency reach up to 98%

Audio Alert Function

Any failure will be alerted

Work Environment

Ambient Temperature: 040, Relative Humidity: 30%90%, Altitude: <2000M ( power reduce 1% every 100M raised4000M utmost )

Cooling Method

Forced Ventilation

Communication Port

RS232, RS485. Dry Contact Interface, SNMP Card(Network Remote Control)

Redundancy Function

Cascade or multiple hot spare

Anti-Surge Capacity

10/700μS, 5kA, 8/20μS, 20kA

Protection Level


Safety Performance

I/O on ground resistance (3000VAC), stray current less than 3.5mA,insulation resistance exceeding 2MΩ(500VDC)



Mechanical Dimension (W×D×H)mm

600×620×1250, 800×620×1850

Net Weight(Kg)

165kgs, 205Kgs, 265Kgs, 320Kgs, 365Kgs


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Copyrights 2000 All Rights are reserved by
LEO Corporation Pakistan.

Company was established in 1989. The Company started designing and manufacturing of Un-interrupted power supplies,Voltage stabilizers keeping in view the local domestic, commercial requirements. Our R&D department constantly kept themselves in touch with need of end user, developed modern equipment, and captured reasonable portion of local Market. Over the period the company developed Control Panels for smaller to medium sized industry. Read More
R&D Office : E-10 Commercial Block, PHA Flats
Near (UET) Zero Gate, Opposite
Opp. Orange Line Metro Station
G.T Road Lahore, (54900) Pakistan.
Phone: +92-42-3682-7799, 3682-7789
UAN +923-111-222-LEO (536)
Support: +92-3033-9999-11
Email: [email protected]

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A/C No. 0134-01000111

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A/C No. 0253-0106089-8

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