1000VA Online UPS 4 Outlets, TAC-LV1K

In stock



Capacity: 1000VA / 900W
Topology: Online double-conversion
Waveform: Sine wave
Outlets: 4

• Sine wave output
• DSP technology
• Active PFC
• 0.9 power factor
• Wide input voltage range (55-150Vac)
• 1% output voltage regulation
• Intelligent slot for an optional network card
• ECO Mode
• Optional external battery bank

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The Tacoma series is a true double-conversion online UPS with pure sine wave output delivering reliable power protection for mission-critical equipment using DSP control for optimal performance. The high 0.9 power factor allows for higher load capacity while a wide input voltage range improves the reliability of the UPS. A 1% output voltage regulation delivers more precise power to connected equipment.


Typical Applications
Mid-size servers
Lab equipment

Networking devices
Surveillance systems
VoIP / PBX systems

Security systems
Gaming computers
Slot machines


Main Features
(4) Battery-Backed Outlets with Surge Protection
These outlets keep critical electronics online during a temporary blackout and offer protection from power surges and voltage spikes. If a blackout occurs or a power disruption beyond the tolerance range is detected, the UPS will switch over to battery power and supply these outlets with power.

True Double-Conversion Online Topology
The main supply is fed directly into the UPS and charges batteries within the UPS. The battery power is then converted back to the main power to feed the protected equipment.

Zero Transfer Time
True online double-conversion topology for zero transfer time from Line Mode to Battery Mode in case of a power disturbance prevents malfunction of mission-critical equipment.

Pure Sine Wave Output
Best waveform for sensitive electronics. Benefits include:
• Smoother waveform
• Best for sensitive equipment
• Higher quality than a modified sine wave
• Maintains voltage at a safe level
• Motors run at their intended speed and with less heat
• Equipment runs with less noise
• IT equipment lasts longer
• Low harmonic distortion

DSP Controlled Technology
DSP (digital signal processor) controlled technology for high reliability, accuracy, and efficiency.

Active PFC to Improve Power Factor
Active PFC (power factor correction) improves the power factor and power quality of the UPS by reducing harmonic distortion on the electrical system to improve energy efficiency and reduce energy loss. Additional benefits include active wave shaping of input current, low voltage drop, filtering high frequency switching, waveform control through feedback sensing from the power source, and regulation of output voltage based on feedback control.

1% Output Voltage Regulation
The UPS regulates the output voltage to be within 1% of the set output voltage. Voltages outside acceptable ranges can cause electronics and electrical components to overheat and may cause premature failure of the devices.

The voltage reference of this UPS is set to a fixed 1% output voltage regulation even when parameters such as ambient temperature change. A precise output voltage is important for sensitive electronic equipment such as ones that require calibration for accuracy and also sensitive electronics are more susceptible to damage when receiving power outside its input range.

Wide Input Voltage Range
Minimizes the need to switch over to battery power and frequency of battery charge and recharge cycles by correcting extreme voltage distortion for higher system reliability.

EMI / RFI Filter
EMI / RFI filter suppresses electromagnetic noise and radio frequency interference transmitted from AC power.

Advanced Battery Management
Maximize battery performance and lifespan with an intelligent, multi-stage battery charging system to auto-sense the optimal battery charging performance based on battery levels.

Overload Protection
Protects the UPS from an overload. If the circuit breaker trips, unplug a few electronics before resetting the circuit breaker and turning your unit back on.

Set Output Voltage and Frequency (for Battery Mode)
The output voltage can be set to 100 / 110 / 115 / 120Vac and the frequency can be set to either 50Hz or 60Hz for better performance with sensitive electronics when the UPS runs on battery power. In Line Mode or ECO Mode, the UPS output voltage and frequency synchronize with the input voltage and frequency.

NOTE: Setting the UPS output to 50Hz will derate the UPS capacity by 40%. For this UPS, the capacity will be cut down to 540W maximum output capacity.

Cold Start Capable
Turn on the UPS even without utility power as long as there is sufficient battery power.

Auto-Restart During AC Recovery
Once power returns to normal and the battery levels are sufficient, the UPS will automatically restart.

Off-Mode Charging
The UPS continues charging the internal batteries when powered off as long as the unit is plugged into an AC mains wall socket.

Power Management Software
Monitor and control the UPS from your computer with the included user-friendly software to automate computer shutdown, monitor battery levels, set UPS parameters, receive alerts of abnormalities, and more.

LCD Screen
See real-time status information of your UPS power conditions including the voltages, battery level, fault detected, and more.

Emergency Power Off (EPO) Tab
Instantly shut off the UPS and prevent the UPS from supplying power in the event of an emergency.

Mute Audible Alarm
Temporarily mute the audible alarm from your UPS by pressing the ON button when audible alerts are ongoing. The mute setting is reset once the UPS returns to a normal state for the next time unusual activity is detected.

Optional Accessories (Not Included)
• Network Management Card - For remote power monitoring. See model number #NMC for compatibility with this UPS series.
• Add-On External Battery Banks - Extend the battery runtime in the event of an extended power outage. See model # TAC-LV1KBB for compatibility with this UPS series. Maximum 3 x TAC-LV1BB may be used.

Warranty (US & Canada)
2-year equipment warranty, 2-year battery warranty, and 2-year $25,000 connected equipment warranty with product registration. See Terms and Conditions and Warranty Policy pages for additional information.

WARNING: The batteries, battery posts, terminals, and related accessories can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. Wash hands after handling. For more information, go to www.p65warnings.ca.gov.
Model TAC-LV1K
Capacity 1000VA / 900W
Topology Online double-conversion
Voltage 100 / 110 / 115 / 120 Vac
Voltage Range 55 - 150Vac
Frequency 50 / 60Hz (auto-sensing)
Inlet NEMA 5-15P
Output Voltage 100 / 110 / 115 / 120 Vac
Frequency Range (on Battery) 50 / 60 Hz +/- 1%
Voltage Regulation <1%
THDv for Linear-Load 4%
THDv for Non-Linear-Load 8%
Crest Factor 3:1
Wave Form (on Battery) Sine wave
Outlet 4 x NEMA 5-15R
Line To/From Battery 0ms
Inverter To/From Bypass <4ms
ECO to Battery <10ms
Line Mode >89%
Battery Mode >86%
ECO Mode >95% at full load with batteries fully charged
Chemistry Sealed lead-acid
Quantity & Size 3 x 12V / 7Ah
Recharge Time 5 hours to 90% capacity (internal batteries only)
Emergency Power Off (EPO) Yes
Overload Protection Yes
Overcharge Protection Yes
Network / Phone / Fax Surge Suppression Yes, RJ-11/45 combo ports (1-in, 1-out)
Surge Suppression Yes
EMI / RFI Filter Yes, full time
Programmable Outlets No
ECO Mode Yes
External Battery Connector Yes, maximum 3 external battery banks (TAC-LV1BB)
USB Port Yes, for power management software to control and monitor the UPS conditions
RS232 Port Yes, for power management software to control and monitor the UPS conditions
Software Compatible with Windows 10/8/7/ Server 2012 R2 / 2008 R2 / Linux 32-Bit / 64-Bit / mac 10.6 to 10.11
Intelligent Slot Yes
LCD Screen Yes, for Input/Output Voltages, Battery Level, Fault, and more
Audible Alert Yes
Warranty 2-Year: Equipment and $25,000 Connected Equipment Warranties. 2-Year: Battery Warranty. See Terms of Use and Warranty pages for additional information.
Color Black
Form Factor Tower
Product Dimensions (DWH) 13.5 x 5.7 x 8.6 in / 345 x 145 x 220 mm
Product Weight 28.6 lb / 13 kg


Product specifications are subject to change without further notice. Maruson assumes no responsibility, and disclaims all liability, for any damages that may result from the use of this information or for any errors or omissions. Battery backup time varies with equipment, configuration, battery age, temperature, etc.

Connect up to 3 external battery banks (EBBs) for extended runtime. Do not exceed 3 EBBs.

TAC-LV1K Runtime
115W 78 minutes   570W 11 minutes
225W 35 minutes   675W 8 minutes
335W 25 minutes   800W 6 minutes
450W 14 minutes   900W 4.5 minutes


TAC-LV1K Runtime + 1 EBB Runtime
115W 238 minutes   570W 34 minutes
225W 108 minutes   675W 25.5 minutes
335W 77 minutes   800W 18 minutes
450W 45 minutes   900W 14 minutes


TAC-LV1K Runtime + 2 EBBs Runtime
115W 400 minutes   570W 58 minutes
225W 180 minutes   675W 42 minutes
335W 128 minutes   800W 31.5 minutes
450W 73 minutes   900W 23.5 minutes


TIME (Minutes)

Download here.

User Manual
Download here.

Download here.

You must connect the USB from your UPS to your computer to use the software.

Compatible Operating Systems
Windows OS: Windows 10/ Windows 8/ Windows 7/ Windows Server 2016/ Windows Server 2012/ Windows Server 2012 R2/ Windows Server 2008/ Windows Server 2008 R2
mac OS: Mac OS 10.6/ 10.7/ 10.8/ 10.9/ 10.10/ 10.11
Linux 32-Bit and 64-Bit: Fedora 7/Redhat Enterprise 7.5/Centos 7/Open SUSE 11.4/Debian 7/Ubuntu 18.10
Virtual Machines (Agent and Client): VMware ESX/ESXi 6.5

My serial number for the software does not work
The serial number to use the included software is printed on your CD; it is not the serial number of your UPS unit.


Change From Standby Mode to Line Mode
In Standby Mode, the outlets are not supplying power to connected equipment. Change the UPS from Standby Mode to Line Mode for connected equipment to receive power by pressing the ON button while in Standby Mode for two seconds. The UPS will take approximately 15 seconds to complete startup diagnostics before switching to Line Mode.

Note: The ON button and OFF button are not the same buttons. The ON button is the far left button and the OFF button is the second button from the left.


Setting the Output Voltage and Frequency (for Battery Mode)
Setting the UPS output voltage and frequency is only for when the UPS is in Battery Mode. This UPS does not offer frequency converter mode. During normal operations, the output voltage and input frequency mimic the input voltage and input frequency with adjustments to keep the output voltage and output frequency within the tolerance range.


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Register your product for warranty coverage and expediated service requests.


Find additional information on our warranty policy.