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Single-Phase Line-Interactive UPS (1000VA/800W)丨BK-L11-1KVA

PRODUCT PARAMETERS

A 1 KVA–3 KVA high-reliability, low-loss single-phase Line-Interactive UPS (Pure Sine Wave) for home, small office and single-phase power scenarios. Ideal for power backup, voltage stabilization or uninterruptible power supply of IT infrastructure, laboratory instruments, medical devices, home electronics and small-office equipment, etc., and excels as a compact, space-saving, high-efficiency solution where galvanic isolation is NOT mandatory.
  • Ultra-Clean Pure Sine Wave Output
  • Ultra-Wide Input Voltage Adaptability
  • High-Speed 4ms Power Transfer
  • Intelligent Energy-Saving Charging
  • Comprehensive Multi-Level Protection
Shipping Location: Shenzhen, China
Description
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Description

Product Overview

The BK-L11-1KVA Line-Interactive UPS (Pure Sine Wave) is a high-performance Online Interactive UPS and UPS uninterruptible power supply, specifically engineered for home UPS (UPS for home), Small-office UPS, IT infrastructure, precision instruments, and daily use scenarios. As part of the 1000VA-3000VA capacity series, this Line-Interactive UPS integrates advanced automatic voltage regulation (AVR) technology, a wide input voltage range, and battery expansion capability, tailored for compact installation in home and small office environments. It serves as a reliable UPS for home and Small-office UPS, delivering stable, clean power protection for key electronic devices, precision equipment, and daily-use appliances—becoming the ideal choice for users seeking trusted power backup and voltage stabilization.

Applications

This Line-Interactive UPS (Online Interactive UPS) is a versatile UPS uninterruptible power supply, widely applied in home, small office, and professional scenarios, providing targeted power protection solutions:


UPS for Home & Daily Use:

Perfect for home entertainment systems (high-definition audio/television), desktop computers, external storage devices, and home security monitoring systems—this home UPS ensures uninterrupted entertainment and work, preventing data loss and equipment damage from power outages.

Small-office UPS Application

Ideal for small office IT infrastructure such as workstations, network equipment (routers/switches), storage devices, printers, and scanners. As a dedicated Small-office UPS, it maintains seamless office operations by stabilizing voltage fluctuations and providing emergency power backup.

Precision & Professional Equipment

Suitable for medical equipment (monitors, diagnostic devices), laboratory analytical instruments, and audio-visual production equipment—leveraging its pure sine wave output to guarantee accurate, stable operation of sensitive devices.

Product Features

As a high-performance Line-Interactive UPS (Online Interactive UPS) and UPS uninterruptible power supply, it combines home UPS and Small-office UPS advantages with the following core features:

Wide Input Voltage Range

Adapts to harsh mains voltage fluctuations, reducing battery switching frequency for extended service life—ideal for unstable power environments in home and small office settings.

Pure Sine Wave Output

Delivers high-quality pure sine wave power with THD <3% (linear load) and <6% (non-linear load), fully matching the power requirements of high-precision devices and sensitive electronics in home and small office use.

Advanced AVR (Automatic Voltage Regulation):

Automatically adjusts input voltage deviations, balancing efficiency and protection—ensuring stable 220VAC output for all load devices, a key advantage for home UPS and Small-office UPS applications.

Intelligent Charging Management

Supports fast charging (recovers to 90% capacity in 4 hours for built-in batteries) and adjustable charging current (1A/2A/4A/6A for external batteries), maximizing battery life and backup time flexibility for both UPS for home and Small-office UPS needs.

4ms Fast Transfer Time

Instantly switches between mains and battery modes under standard conditions—avoiding data corruption and equipment failure, a critical feature for home and small office electronic devices.

Multi-Level Overload Protection

100%-110% overload: audible alarm only; 110%-130% overload: auto-shutdown after 30 seconds or bypass mode switching (normal input); >130% overload: immediate shutdown or bypass mode—comprehensively safeguarding home and small office equipment.

Specifications

Model itemBK-L11-1KVA
Capacity1000VA/800W
TopologyOnline interactive
EfficiencyAC Mode≥85%
Battery Mode≥83%
InputRated Voltage220VAC
Voltage Range145Vac-275Vac
Frequency50/60Hz±3Hz (Auto sensing)
PhaseSingle-phase
Power Factor≥0.99@220-230VAC
OutputRated Voltage220VAC
Frequency Range (Synchronous Range)Follows mains when input is 47-53Hz (50Hz default) or 57-63Hz (60Hz default)
Frequency Range (Battery Mode)50Hz±0.25Hz or 60Hz±0.3Hz
Transfer Time4ms (standard conditions)
Waveform (Battery Mode)Pure Sine Wave
THD<3% (linear load), <6% (non-linear load)
Current Crest Ratio3:1
Overload Protection100%-110%: audible alarm; 110%-130%: auto-shutdown after 30s or switch to bypass mode (normal input); >130%: immediate shutdown or switch to bypass mode (normal input)
BatteryBuilt-in Battery Model12V/7-9AH
Number of Batteries2/3
Charging Time4 hours recover to 90% (built-in battery)
Charging CurrentMaximum 1A (built-in battery); 1A/2A/4A/6A adjustable (external battery)
Charging Voltage27.3V±1%/41.0V±1%
EnvironmentalOperating Temperature0~40℃
Humidity20-95%RH (non-condensing)
Noise<45dBA@1m
ManagementCommunication InterfaceOptional intelligent RS-232 or USB, supporting Windows 2000/2003/XP/Vista/2008/7, Linux, Unix and MAC
Optional SNMPSupports power management via SNMP manager and web browser
Dimension (D×W×H)345×144×220 mm
Net Weight8.5 kg / 10.1 kg

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