Gold Member Since 2016
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Eastsun Electricity Science and Technology (China) Co., Ltd.

UPS System, UPS Power Supply, Power Supply manufacturer / supplier in China, offering 1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply, 2kVA Low Frequency Double Conversion Online UPS for Computer, 30kVA Power Supply Online UPS 3 Phase in Single Phase out and so on.

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1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply

FOB Price: US $100-20,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100-20,000/ Piece
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Port: Foshan, China
Production Capacity: 50000pieces/Year
Payment Terms: L/C, T/T, Western Union, Money Gram, TT, LC, money gram, western union

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Basic Info
  • Model NO.: DD1K-400K
  • Type: On-line
  • Application: Communication,Home,Computer,Industry
  • Standby Time: Depends on Battery and Needed Backup Time
  • Output Capacity: From Small,Medium to Large Size
  • Brand: Eastsun
  • Warranty: 1 Year
  • Provide: OEM and ODM Service
  • Communication Port: RS232,RS485, Dry Contact, Snmp
  • AC Output Voltage: 110/220V(Optional)
  • Name: 1kVA to 400kVA Pure Sine Wave Double Conversion Lo
  • Transport Package: Carton Box
  • Origin: Foshan
  • Phase: Single Phase and Three Phase
  • Protection: Short Circuit,Overcurrent,Overvoltage Ect.
  • Classification: Online UPS
  • Standby UPS: Sine Wave Output UPS
  • Equipment Mode: Centralized Model
  • Color: Black
  • Output Wave Form: Pure Sine Wave
  • Efficiency: >90%
  • Display: LCD
  • Parallel: Can Be Parallel for 3 Phase Online UPS
  • Trademark: eastsun
  • Specification: different size for different capacity
  • HS Code: 8504403090
Product Description
1KVA to 400KVA pure sine wave double conversion low frequency online UPS power supply 

EST series 10KVA~400KVA online three phase in three phase out UPS is an on-line double-conversion UPS
with output isolation transformer built-in, offering high levels of reliability and performance for all kinds of
load, not only IT systems, banking and communications, but also medical service and industrial applications,
its perfect reliability and performance make it most popular in some countries with harsh and unstable grid.

1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply

50KVA-80KVA Online UPS
1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply

100KVA to 400KVA online UPS
1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply

  1. High efficiency 95%
  2. High charging capability
  3. Pure sine wave output, zero transfer time
  4. Automatic and manual maintenance by pass
  5. Online double conversion with full DSP control
  6. Configuration with output isolation transformer
  7. Optional input filter to improve input power factor
  8. Support battery cold start and auto-restart when mains power is restored
  9. Optional configuration: USB ports,  SNMP, dry contacts and RS485
  10. Superior protection (surge, short-circuit, over-voltage, undervoltages, overcharge, overload, over
  11. temperature, reverse connection protection etc.)
  12. Generator compatible
  13. Low input distortion: THD < 5%
  14. High overload capability (up to 150%)
  15. 100% unbalance load capability
  16. High immunity to external disturbances
  17. Advanced communications RS232(standard)
  18. LCD touch screen, friendly human & machine interface
  19. Front access makes maintenance and replacement easy
  20. Suitable for all kinds of loads (resistive, inductive and non-linear loads etc.)
  21. Intelligent self-diagnosing function, all kinds of failure protection, large capability of history records Storage
  22. Other options(parallel kits, input isolation transformer, bypass isolation transformer and harmonic suppressor)

Nominal capacity (KW)0.511.22345
DC voltage24VDC48VDC/96VDC
Output  voltage220VAC ± 2% 
Output Frequency50Hz ± 1%
Charge currentMax 20A
Overload capacity 105%~125%,60sec; >125~150%,10sec; >150%, 140ms output short circiut <150ms
Noise≤45dB(Distance 1m)   
Size(W*D*H mm)400*193*320480*260*430
Weight 25303235405060
Nominal capacity (KW)610152030405060
DC voltage96VDC192VDC/384VDC384VDC
Output  voltage220VAC±2%220VAC±1%
Output Frequency50Hz ± 1%
Charge currentMax 20A6A~20A(adjustable)
Overload capacity 105%~125%,60sec; >125~150%,10sec; >150%, 140ms output short circiut <150ms125%10min,150% 1min
Noise≤45dm(Distance 1m)    ≤55dB(Distance 1m)≤65dB(Distance 1m)
Size(W*D*H mm)550*260*640630*650*1130650*800*1500
Weight (KG)70100180220250280310360
Common parameter
Input voltage 220VAC±25%
Input frequency50HZ±10%,60HZ±10%
Output waveformPure sine-wave
ProtectionInput/output over high or low protecting
Low battery protecting ; surge and pike-currents protecting
Operation temperature0~40ºC
Storage temperature"-15~50ºC"
Operating height above sea level0~3,000meter
Nominal capacity (KVA/KW)10/815/1220/1630/2440/3260/4880/64
Battery voltage384VDC
Charge current6A~20A(adjustable)
Noise≤53dB(Distance 1m)   ≤60dB(Distance 1m)   
Size(W*D*H mm)630*650*1130650*800*1500
Weight 160190220250280350410
Nominal capacity (KVA/KW)100/80120/96160/128200/160250/200300/240400/320
Battery voltage384VDC/396VDC
Charge current15A~40A(adjustable)20A~60A(adjustable)
Noise≤65dB(Distance 1m)   ≤70dB(Distance 1m) 
Size(W*D*H mm)1250*750*16501250*850*1700
Weight 630680740840105015501800
Common prameter
 Input voltage380VAC±25%
Input frequency50/60HZ±10%
Output voltage380VAC±1%
Output frequency Synchronized with utility in mains mode, 50/60HZ±1% in battery mode 
Waveform Sine wave 
Total harmonic distortion Linear load<3%; non-linear load<5%
Crest factor 3:1
Transfer time 0 ms
Inverter overload capability 125%10min,150% 1min
Efficiency(load 100%)95%
ProtectionsShort-circuit, overload, overvoltage, undervoltage, low battery, overtemperature, fan fault
Operating temperature-20~40ºC
Relative humidity0%~90%
Running altitude(maximum)<1,000 meters(each additional 100 meters power fell 1% to a maximum 4,000meters)
1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply
1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply1kVA to 400kVA Pure Sine Wave Double Conversion Low Frequency Online UPS Power Supply

Q1 : What is you advantages?


a).We are professional ups manufacturer for more than ten years and we have these staffs with rich

     production and R&D 

b) Excellent workers and skilled engineers 

c).Our aims are to provide every customer high quality, reasonable price and excellent 


 d)we can guarantee to send the goods on time. And also accept any transportation ways that

you require 


Q2 : How do you control the production quality?


a) For materials, we have IQC departments and the IQC testing follow MIL-STD-105E standard

b) in production have 4 times function testing

c) all of our products with 100% burn-in testing

d) 100% QC testing before delivery


Q3 : Do you accept OEM/ODM?

A3 : ODM&OEM are warmly welcomed !!!


Q4 : what's your payment?

a) We can accept payment terms of T/T, Western Union.

 Samples and trial order accept T/T & Western Union. normal order accept T/T &Western Union 

b) 30% ADVANCE DEPOSIT after buyer's confirmed payment, the balance should be paid before shipping when goods are ready.


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