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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: IWELL / OEM
  • Model Number: BSL 3K
  • Phase: Single Phase
  • Protection: Short Circuit, Short circuit,low voltage,overload voltage
  • Weight: 17-24.5kg
  • Output Voltage: 220/230Vac±20% 50/60Hz
  • Type: Standby
  • Application: TV, Computer, laptop and home appliance
  • Capcity: 3kva
  • Output: 220/230Vac±10% 50/60Hz
  • Capacity: 1000VA/600W, 1500VA/900W ,2000VA/1200W,3000VA/1800W
  • Display: LED
  • Battery capacity: 4x12V/9Ah/48V
  • Standby time(one set of pc): 55-70(minutes)
  • Certification: CE,SCI,ISO,MSDS
  • Custom: OEM/ODM
  • Warranty: 1 year

Packaging & Delivery

Packaging Details inner box + shipping carton
Delivery Time Shipped in 20 days after payment

IWELL high efficiency 3kva uninterrupted power supply for computer offline UPS


computer offline ups Functions & Features:

  • UPS,
  • AVR,
  • Low battery alarm,
  • Night charging (optional),
  • UPS auto on when ac back,
  • Overload and sort circuit protection.

computer offline ups Application:

  • Home use,
  • Work station,
  • PC (computer),
  • NT workstation,
  • Small internet working device,
  • SOHO (small office home office.

computer offline ups Specification:

BSL Series Offline UPS 1000va~3000va
Offline UPS1000VA1500VA2000VA3000VA
Utility(AC) InputVoltage220Vac/110Vac
Voltage Regulation220/110Vac±20%
Built-in AVRYes
Transfer Time<10ms
Backup OutputCapacity1000VA/600W1500VA/900W    2000VA/1200W3000VA/1800W
Voltage Regulation220/110Vac±10%
BatteryRecharging Time8 Hours to 90% of full capacity
Backup time (one 17” PC)15~30 min26~35 min40~50 min55~70 min
On-line Charging Yes
ModelSealed Lead Acid Maintenance-Free Battery
Account 2x12V/7Ah      3x12V/7AH4x12V/7AH4x12V/9AH
Long backup External battery  bank (24V)              External battery  bank (36V)External battery bank(48V)
OutletsStraight throughSocket changeable to meet buyer’s demand
UPS back-up 
Interface DB9, RJ45/11, S/W&Cable--Optional
LED DisplayUtility NormalGreen light
Utility Failure Red light
Low BatteryRed light
Buzzer AlarmUtility FailureBeeps per 4 sec.
Low  BatteryBeeps per 1 sec.
Protection Low Battery,  Overload, Short Circuit,        
Fuse: Yes(AC)Auto On when AC recovery
EnvironmentTemperature0~40 °C
Relative Humidity0~95%
PhysicalWeight (gross weight) (kg)171922.624.5
Weight (net weight) (kg)151720.622.5
Dimension (W×H×D) (mm) 425mm×210mm×145mm
Inner Box dimension490mm×325mm×230mm 
Outer Box dimension495mm×340mm×480mm     (2pcs/carton)
computer offline ups Photos:
Packaging & Shipping


  1. Payment T/T,L/C, western union and money gram;
  2. T/T 30% deposit, balance in full before shipment;
  3. Packing Color box+plastic bags+carton / as customer request;
  4. Warranty 1 year.



Q 1. If you offer the installation help?

A. coz oversea far away distance, the installation fee is expensive. so we always offer the installation design diagram, the clients set by themselves according to the drawing. And we will offer the help timely whenever you needed.


Q 2. if this item has isolated transformer ?

A. onlinhigh frequency ups without isolated transformer.

online low frequency ups built-in isolated tranformer.


Q 3. How to maintenance when ups didn't work?

A. please strictly do accordance with the user manual , and do not excessive discharge . usually our UPS with lower maintenance. but you can contact us when any troubles happen, our engineer will give you advice asap.


Q 4.Would you accept to use our logo ?

A.it absolute no problem to do OEM ( print your logo on UPS).

Our Services

1.We are Alibaba Assessed 4 years Gold Supplier. 

2.We are a factory manufacturing UPS power,inverter and battery. best production capability ,best quality control, Best Service . 

3.Inspected by the Inspection Institution of  China Quality Certification Centre . 

4.100% QC inspection Before Shippment. 

5. CE/ISO listed,competitve price.




Company Information


Shenzhen Zhongyuan Chuangda Technology Co. Ltd (ZYUPS), with our brand IWELL,was founded in 1997. we are a professional high-tech high precision and high quality enterprise with international trade experience specialized in the development manufacture sale and after-sales service of UPS (Uninterrupted Power System), solar inverter and Storage Lead Acid Battery.








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