Index > Product > LINE Interactive UPS > UBT-L 800VA ~ 4000VA

UBT-L 800VA ~ 4000VA

Line Interactive UPS - UBT-L 800VA ~ 4000VA

Extra Smart UPS "Tower Long-Run Ver. " UBT-L 800VA ~ 4000VA

Feature :

  • Pure sine wave output.
  • Smart backup time estimation for any kind of battery.
  • Adjustable voltage sensitivity, voltage-transfer points, & charging voltage.
  • Generator compatible.
  • Automatic restart of load after UPS shutdown.
  • Smart AVR function (Two buck / boost modes).
  • Cold-start capable.
  • Audible alarm.
  • Hot-swappable batteries.
  • Network manageable (SNMP optional).
  • Full function of LCD display (LED display optional).
  • Smart battery management.
  • Intelligent double stages of charging control, Wet battery compatible.
  • Thermal control cooling fan.
  • Protection for overload, short circuit, & over heat.
  115V Models 230V Models
Power Levels crated at
nominal inputs

1100VA / 660W,  2200VA / 1350W,  3000VA / 1800W,

Output Voltage 100V/110V/115V/120V Selectable 200V/220V/230V/240V Selectable
Voltage Waveform Sine wave
Crest Factor 3:1

Output Frequency

(Synchronized to Mains)

Auto Select for 50/60Hz
47Hz ~ 55Hz for 50Hz nominal

56Hz ~ 65Hz for 60Hz nominal
Regulation (Nominal) ±5% typical of nominal voltage  (optional at ±8% AVR for wide I/P up to ±35%)
Regulation (Batt. mode) ±3% of selected output voltage  (adjustable with the remote set-up software)
Transfer time

Blackout 3ms typical
Brownout 1ms typical

Battery mode to Normal mode:1ms typical
Over current protection

Over load alarm level 100% ~ 120%
Over load shutdown level 120% ~ 190%

(Adjustable with the remote set-up software)
  115V Models 230V Models
Nominal Voltage

100V/110V/115V/120V Selectable

200V/220V/230V/240V Selectable
Input Frequency 47Hz ~ 65Hz, 50/60Hz auto-sensing
Efficiency (Normal mode) 97%
Noise Filtering Full time EMI/RFI filtering

Over current protection

1100VA:by AC fuse

2200VA ~ 3000VA:by re-settable
over current protector

110VA ~ 2200VA:by AC fuse
3300VA:by re-settable
over current protector

Voltage Range

-20% ~ +24% for selected nominal voltage.

-29% ~ +33% adjustable with the remote set-up software

AVR Range

(2 Bucks, 2 Boosts)

Enhanced Buck: +15% of selected nominal voltage
Buck mode: +5% of selected nominal voltage
Boost mode: -5% of selected nominal voltage

Enhanced Boost: -12.5% of selected nominal voltage
Surge Protection

1100VA:216 Joules

2200VA ~ 3000VA:324 Joules

1100VA:220 Joules
2200VA:440 Joules

3000VA:660 Joules
Battery type Maintenance–free sealed, valve-regulated, Lead-Acid
800VA ~ 3300VA:12V, 7Ah,   4000VA:12V, 9Ah

1100VA:24Vdc, (48Vdc Optional)

2200VA:48Vdc,   3300VA:72Vdc
Typical backup time at half-load

No Limit

Typical backup time at full load

No Limit

Charging method

Smart pulse charging with two charging modes.

Quick charging when battery is not fully charged, trickle charging when battery is 90% fully charged.
Average charging current 11 A at normal line and normal temperature
Average charging voltage for each battery

Quick charging mode:14V maximum.

Trickle charging mode:13.2V ~13.9V adjustable with the remote set-up software.

Over current protection (SCR control)
Over charging voltage protection (SCR control)
Thermal protection (CPU control)

When temperature inside UPS is over 45℃, charger will stop charging for 2.5 minutes followed by an 1.5 minutes charging.  The cycle will be repeated until the temperature is lower than 44℃.
Monitoring Smart monitoring & warning for failed battery or open-circuit battery. Auto-detection each time when power on or every 6 days.
Communications & Management
Standard Interface port

UPSilon2000 compatible.
800VA ~ 3000VA:RS232, optional for RJ45, USB.

Optional Interface port DB9, SNMP (external type)
Control panel

LCD or LED Selectable

Audible alarm Alarm on battery:Low battery & Battery over voltage

Alarm on abnormal operation:Over load, Short-circuit, & Over heat
EBT (Estimation of Backup
Time) system

Support for LCD display

Green mode function (Auto-shutdown during blackout) 1% to 14% of full load (adjustable with the remote set-up software)

The default setting is OFF.
Environmental and Safety
Operating Temp. Up to 1500 meters:0℃ to 40℃ (32℉ to 104℉)
Transit/storage Temp. -15℃ to 55℃ (5°F to 131°F)
Relative Humidity

5 - 95% non condensing

Operating Altitude 0 ~ 3000 meters
Audible noise

≦40 dBA (at 1M from surface of unit)

Safety Markings BSMI CE
EMC Class B, EN50091-2, FCC part15, IEC1000-2-2
Quality control system ISO 9001

Dimensions: (D×H×W)

Unit / Shipping

45 x 20 x 18 (cm) / 54 x 33 x 30 (cm)

Weight:Net / Gross (kg)

1000VA:15 / 16 (kg), 2200VA:25 / 26 (kg), 3300VA:36 / 37 (kg)


Export carton for each unit, 16 - 30 units per pallet