LT1E Line Interactive UPS 600 VA to 3 kVA – AVR Tower UPS | ATENCO
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LT1E SERIES

Line Interactive UPS 600–3000 VA

Single-phase line-interactive tower UPS with AVR Boost/Buck voltage correction for 110 V and 220 V systems (81–145 VAC / 162–290 VAC input window). LT1E protects desktops, CCTV, NVR, POS terminals, home networking equipment and small IT loads with simulated sine wave on battery, fast static-switch transfer (2–10 ms on 600–2000 VA, 10–13 ms on 3000 VA), cold/DC start and auto-restart on AC recovery. CE, EMC, LVD and IEC 62040 standards available by model.

Line Interactive AVR Boost/Buck Compact Tower Low-Noise Operation
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User Manual (PDF)

Engineered for Everyday Power Protection

Line-interactive protection for desktops, networking gear, CCTV, POS and small office loads – without the cost or complexity of an online double-conversion UPS.

Built-In AVR (Boost & Buck)

Automatically corrects low and high input voltage (81–145 VAC or 162–290 VAC) without switching to battery, reducing unnecessary battery discharge during mains fluctuations and helping extend battery service life.

Fast Transfer to Battery

Static-switch transfer with simulated sine wave keeps desktops, CCTV, NVRs, routers and POS terminals running through brownouts and blackouts. Transfer time: 2–10 ms on 600–2000 VA, 10–13 ms on 3000 VA.

Cold / DC Start

Start the UPS directly from battery when AC mains is unavailable – single-press DC start. Useful for remote sites, mobile setup, generator-only locations and pre-utility commissioning.

Auto-Restart on AC Recovery

When utility power returns, LT1E automatically restarts, transfers back from battery and recharges the pack – ideal for unattended CCTV closets, telecom cabinets and edge IT enclosures.

USB & RS-232 Management

USB and DB9 RS-232 communication available by model for unattended shutdown software on Windows, Linux, Unix and macOS – simultaneous use supported from 1 kVA upward. Optional modem/LAN data-line surge protection.

Compact, Quiet, Microprocessor-Controlled

Mini-tower design for desk or counter installation. Low-noise operation, 0°C to 40°C operating range, microprocessor control, self-diagnostics on power-up and end-of-life battery alarm.

600–3000 VA · AVR Boost/Buck · Cold/DC Start · CE / EMC / LVD / IEC 62040 by model

Optional Accessories

Optional connectivity and power accessories for LT1E line-interactive UPS models. Availability depends on model, communication version and market plug standard. Specify at time of order.

USB Monitoring Kit

USB communication cable with ATENCO monitoring software for local UPS status, event logging and unattended shutdown on supported operating systems.

RS-232 Monitoring Kit

DB9 RS-232 communication cable for legacy PCs, industrial computers and monitoring systems requiring serial UPS communication. Simultaneous use with USB supported from 1 kVA upward.

IEC Power Cable

Standard IEC 60320 power cord for compatible LT1E input or output connections. Plug type and cable format supplied according to model and market plug standard.

External SNMP Monitoring Option

Optional external network monitoring device for remote UPS status and event notification. Compatibility and feature set should be confirmed by LT1E model / version and project configuration.

Technical Details

Complete specifications for the LT1E 600–3000 VA line-interactive UPS series.

Specification600 VA800 VA1000 VA1500 VA2000 VA3000 VA
Full NameLT1E Line Interactive UPS
TopologyLine Interactive with AVR (Boost & Buck)
Phase1P–1P (Single Phase)
Form FactorCompact Tower
Capacity600 VA800 VA1000 VA1500 VA2000 VA3000 VA
Output Power Factor0.6 (line-interactive convention)
Waveform (Battery)Simulated Sine Wave (stepped approximation)
Cold / DC StartYes
Auto-Restart on RecoveryYes
Auto-Charge (UPS off)Yes
Surge ProtectionModem / LAN port
StandardsCE, IEC 62040, EMC, LVD, RoHS
Specification600–2000 VA3000 VA
Nominal Input Voltage110 / 120 VAC or 220 / 230 / 240 VAC (factory-set per region)
Input Voltage Range81–145 VAC / 162–290 VAC (AVR corrects without battery)
Input Frequency50 / 60 Hz auto-sensing
Output Voltage (Battery)110 / 120 VAC or 220 / 230 / 240 VAC ±10% (matches factory-set input)
Output Frequency (Battery)50 / 60 Hz ±1 Hz
Output Power Factor0.6 (line-interactive convention)
Waveform (Battery)Simulated Sine Wave (stepped approximation)
Transfer Time2–6 ms typ / 10 ms max10 ms typ / 13 ms max
AVR Voltage RegulationBoost & Buck auto-tap (no battery drain within AVR window)
Bus Voltage12 / 24 VDC (model-dependent)48 VDC
ModelBatteryDC BusRecharge
LT1E-6001× 12V/7Ah12Vdc6–8h to 90%
LT1E-8001× 12V/9Ah12Vdc6–8h to 90%
LT1E-10002× 12V/7Ah24Vdc6–8h to 90%
LT1E-15002× 12V/9Ah24Vdc6–8h to 90%
LT1E-20002× 12V/9Ah24Vdc6–8h to 90%
LT1E-30004× 12V/9Ah48Vdc8h to 90%

Typical Runtime (full load, new batteries, 25°C)

Model25% Load50% Load75% Load100% Load
LT1E-60020–30 min8–12 min5–7 min3–5 min
LT1E-100020–30 min10–15 min6–9 min4–6 min
LT1E-150020–30 min12–18 min7–10 min4–7 min
LT1E-200018–28 min10–15 min6–9 min4–6 min
LT1E-300015–25 min8–12 min5–8 min3–5 min
ModelDimensions (W×H×D)Weight
LT1E-600101×142×298mm4.25kg
LT1E-800101×142×298mm4.9kg
LT1E-1000149.3×162×338mm7.8kg
LT1E-1500158×198×380mm11.1kg
LT1E-2000158×198×380mm11.5kg
LT1E-3000145×213×436mm23kg
Interface600–800 VA1000–3000 VA
USB PortOptional (single-port option – USB or RS-232, not both)Available (optional, both ports)
RS-232 Port (DB9)Optional (single-port option – USB or RS-232, not both)Available (optional, both ports)
Simultaneous USB + RS-232Not supportedSupported from 1200 VA upward
Modem / LAN Surge Protection PortOptional (model-dependent)
Power Management SoftwareATENCO monitoring software (UPSilon2000-compatible class) – download from download.atenco.com.tw
OS SupportWindows, Linux, Unix, macOS
Serial Settings9600 / 2400 bps, 8 data bits, 1 stop bit, no parity
SNMP / Network ManagementOptional external SNMP-TM-650 box (build-to-order)
LCD DisplayOptional (model-dependent)

LED Indicators

Status600–1000 VA1200–3000 VA
AC ModeGreen LED steadyGreen LED steady
Battery ModeAmber LED flashingGreen LED flashing
FaultRed LED steadyRed LED steady

Protection

ProtectionBehavior
AC Overload ProtectionUPS sounds rapid alarm and transfers to bypass / shuts down if load exceeds rated VA continuously
Internal Short-Circuit ProtectionStatic-switch trip + circuit-breaker (rear panel) interrupts output on short
Battery Discharge ProtectionLow-voltage cutoff prevents battery damage from deep discharge
Battery Overcharge ProtectionConstant-voltage charger cuts off when full charge is reached
Overheat ProtectionThermal sensors shut down output on internal temperature excursion
Surge / Spike ProtectionInput MOV network on AC line; modem / LAN surge port optional

Audible Alarms

ConditionAlarm Pattern
Battery Mode (running on battery)Beep every 10 seconds
Battery Low (shutdown imminent)Beep every 1 second
Overload (reduce connected load)Beep every 0.5 second
Battery Replacement Due (self-diagnostic)Beep every 2 seconds
Fault (output short / overcharge / overload)Continuous beep
ParameterSpecification
Operating Temperature0°C to 40°C
Humidity0–90% RH non-condensing
Noise<40dB at 1m
Battery Life3–5 years at 25°C
Safety / EMCCE, IEC 62040, EMC, LVD
EnvironmentRoHS compliant
External BatteryNot available
ColourBlack

Ideal Applications

ApplicationDetails
Desktop PCs & WorkstationsOffice computing, home office
CCTV & SecuritySurveillance cameras, access control systems
NetworkingRouters, switches, modems, NAS
Home ServersFile servers, media servers
Office ElectronicsPrinters, scanners, peripherals
POS SystemsPoint-of-sale terminals, cash registers

Downloads

LT1E 600–3000 VA Datasheet EN
LT1E 600–3000 VA User Manual EN

Ideal For

Affordable line-interactive battery backup for SOHO, small office, home networking, CCTV and low-power security equipment that needs protection from brief outages and voltage fluctuations.

Desktop PCs and workstations protected by ATENCO LT1E UPS

Tower PCs & Desktops

Battery backup for Windows desktops, iMacs, all-in-one workstations and high-resolution monitors – prevents sudden shutdowns, data loss and file-system corruption during brief utility outages and brownouts.

Inkjet printers and office peripherals on ATENCO LT1E UPS

Inkjet Printers & Peripherals

Steady backup power for inkjet printers, scanners, document feeders, label printers, external drives and small-office peripherals. For laser printers or high-inrush equipment, confirm load current before selection.

Home server and NAS units backed up by ATENCO LT1E UPS

NAS & Home Networking

Backup power for Synology / QNAP / TrueNAS units, routers, switches and home networking equipment. For active-PFC servers or critical storage systems, ATENCO recommends online UPS models such as TM11E or RM11E.

CCTV and IP camera surveillance on ATENCO LT1E UPS

CCTV & Surveillance

Backup power for IP cameras, DVRs / NVRs (Hikvision, Dahua, ONVIF), video walls and monitoring stations – helping keep security recording active during brief outages, brownouts and voltage fluctuations.

Access control panels and biometric readers on ATENCO LT1E UPS

Access Control

Backup power for door controllers, RFID / proximity card readers, biometric fingerprint scanners, intercoms and security panels – keeps building access management and intrusion detection operational during blackouts.

Emergency lighting and exit signs powered by ATENCO LT1E UPS

Emergency Signage & Low-Power Safety Loads

Backup support for low-power emergency signs, corridor indicators and selected safety-related devices, subject to local fire-safety code and project approval.

Frequently Asked Questions

Answers to the most common LT1E line-interactive UPS questions.

What is the difference between a line-interactive UPS and an online double-conversion UPS?
A line-interactive UPS like the LT1E feeds mains power directly to the load through an AVR transformer that corrects under- and over-voltage, only engaging the battery when the input falls outside the AVR window. Output on battery is a simulated (stepped) sine wave with a 2–10 ms transfer time. An online double-conversion UPS such as the TM11E or RM11E rectifies mains to a DC bus and re-inverts it to a pure sine wave continuously, so the inverter is always carrying the load and transfer time is 0 ms.
Is the LT1E pure sine wave?
No. The LT1E outputs a simulated (stepped approximation) sine wave when running on battery. This is suitable for SMPS-powered desktops, NVRs, routers, POS terminals and most small-office IT equipment, but is not appropriate for sensitive equipment that specifies pure sine wave input. For pure sine wave output, choose an online double-conversion model: TM11E (tower) or RM11E (rack).
Which applications is the LT1E NOT recommended for?
The LT1E is line-interactive with simulated sine wave output, so it should not be specified for: medical, pharmacy and laboratory equipment that requires pure sine wave input; equipment manuals that explicitly require “pure sine wave” or “online double-conversion”; sensitive analytical instruments, MRI / CT / ICU peripherals and pharmacy refrigerators; PFC-input enterprise servers that mis-detect stepped waveforms as power events; laser printers, hair dryers and other high-inrush domestic appliances; and loads needing extended runtime via external battery cabinets (not supported on LT1E). For these workloads, choose TM11E (tower) or RM11E (rack) online double-conversion — pure sine wave output, 0 ms transfer time, SNMP / network management and external battery extension are available on those series.
What is AVR Boost and Buck?
AVR stands for Automatic Voltage Regulator. The LT1E uses an auto-tap transformer that “boosts” (raises) low input voltage and “bucks” (lowers) high input voltage to keep output within a tight window – all without engaging the battery. This means the VRLA battery is preserved for actual outages instead of cycling every time the mains sags or surges, extending battery life to a typical 3–5 years at 25°C.
Does the LT1E support external battery cabinets?
No. External battery expansion is not supported on the LT1E series. Internal VRLA batteries (12 V / 7–9 Ah) are sized per model and replaced as a complete set. If longer runtime is required, choose a higher-capacity LT1E SKU or move to the TM11E / RM11E online series, which support external battery cabinets for extended runtime.
Can the LT1E be used for CCTV, NVR or NAS?
Yes. The LT1E is well-suited to CCTV / surveillance loads (IP cameras, DVRs, NVRs, video monitoring stations) and home or small-office network storage (Synology, QNAP, TrueNAS). Simulated sine wave output is compatible with the switched-mode power supplies in these devices, transfer time of 2–10 ms is fast enough to keep them online through brownouts, and auto-restart on AC recovery means unattended cabinets recover without intervention.
LT1E Line Interactive UPS

Specify Your LT1E in
Two Steps

Tell us your load profile, typical mains conditions and required battery runtime. Our engineers will recommend the right LT1E model from 600 VA to 3 kVA, confirm the correct input voltage family (110 / 120 V or 220 / 230 / 240 V) and provide a quotation within 24 hours through our certified distributor network.

Sizing & quotation within 24 hours
CE / EMC / LVD / IEC 62040 by model
Distributor network in 50+ countries
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