1500VA Online UPS 200V – Lithium-Ion (RACK/TOWER/WALL)

P91g-1500Li 1.5kVA – 1500VA Online UPS 200V

The P91g-1500Li provides 3kVA of clean and stable electrical battery backup power to mission-critical equipment during and after a power loss or disruption events.

  • The Double Conversion Online technology, protects attached critical equipment by providing stabilization and power conditioning to incoming electrical power.
  • Wide range power input for applications with unstable incoming power input.
  • Lithium-Ion batter, hen compared to typical lead acid batteries, lithium-ion batteries provide more than twice the life, higher temperature tolerance, longer runtime, and faster recharge times.
  • Up to 10 year battery life
  • Peace of mind by protection for critical equipment from daily incoming electrical surges up to 800 Joules.
  • Purchase with confidence!  The P91g-1500Li UPS is backed by an industry leading 6-year product warranty and a $50,000 Load Protection Policy.
  • For questions or quotations please contact us via Chat, Phone or email at sales@republicpowersystems.com
SKU: 90000318-1-3 Categories: ,

Product description

Features of the P91-1500Li Lithium Ion UPS 200V include:

The P91g-1500 is a 1500VA Online UPS 200V that delivers continuous, pure sine wave AC power to critical electrical equipment.  The P91g-1500Li provides tower, rack, and wall mount configuration options.  It protects your equipment from blackouts, brownouts, sags, surges, and noise interference. The P91g-1500Li offers the lowest total cost of ownership by cutting energy costs and lowering heat output.

  • CAPACITY: 1.5 kVA / 1500 VA / 1350 Watts                                            CLICK HERE TO CALCULATE YOUR BACKUP POWER REQUIREMENTS 
  • VOLTAGE INPUT: Single Phase 110-300 VAC* / 50/60Hz auto-sensing, 8 ft, C13 to L6–20P line cord
  • VOLTAGE OUTPUT: 208/220/230/240VAC
  • UPS TOPOLOGY: Double Conversion Online
  • MOUNTING OPTIONS: Tower, wall (2U units), 2-post and 4-post rack mounting configurations available
  • EFFICIENCY: Up to 98%
  • BATTERY CHEMISTRY: LITHIUM-ION (10-Year battery life)
  • COMMUNICATIONS INTERFACE: RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus)
  • CERTIFICATIONS: CE, RoHS, battery packs comply to UL1973 or UL2054 for battery transportation
  • WARRANTY: 6 years electronics, 6 years battery warranty (USA and Canada)
  • OPTIONS: Bypass distribution (XBDM), power distribution (XPDU), 4-post rail kit, 2-post shelf kit, wall mount bracket

Benefits of a P91g-1500Li UPS include:

AUTO RESTART: After full battery discharge, the P91G-1500Li automatically restarts when utility power returns

98% EFFICIENT OPERATION: High efficiency ECO mode lowers energy consumption, in Line Mode

SMART LCD DISPLAY: Vital monitoring and precise information is brightly displayed on the front LCD interface.

FREQUENCY CONVERTER: The P91g-1500Li can be programmed to convert from 50Hz to 60Hz or 60Hz to 50Hz

LOAD SHEDDING CAPABILITIES: Maximize up-time for critical loads and equipment by shedding less critical loads

NETWORK MANAGEMENT CARD:  An optional network card allows for the P91G-1500 UPS to be network manageable for monitoring and control

MAINTENANCE BYPASS: An optional bypass module enables the P91g-1500Li to be replaced or serviced without interruption of power to critical loads

SURGE PROTECTION: 800J of surge protection

$50,000 LOAD PROTECTION POLICY: protection against damaged connected equipment

Power Protection provided by the P91g-1500Li Online UPS:

  • Power problems such as electrical surges and sags
  • Total loss of electrical power or hard power “re-boots”
  • Unstable incoming power caused from outdated or faulty electrical wiring and or power distribution equipment
  • Harmonic interference from neighboring “high power draw” equipment
  • Severe weather events such as lighting storms, ice and snow storms and downed power lines
  • Unstable power generation from local utilities or on-site generation

Click here to learn more about the TOP 10 POWER ISSUES and UPS power protection features

Wide Power Input

The P91g-1500Li, 1.5kVA Online UPS 200V supports incoming wide AC power input. The automatic voltage regulator (AVR) protects the UPS and connected equipment from adverse voltage conditions. This wide AC input capability can offer sag and surge protection without engaging the backup batteries of the UPS. This will reduce the stress on connected critical equipment and extends the battery life of the UPS.

Double Conversion Topology

Double Conversion Technology

Double Conversion Technology

The P91g-1500 is a 1.5kVA true online double conversion uninterruptible power supply providing the ultimate in clean and stable electrical power. Incoming AC power is fed to the UPS’ rectifier converting it from AC to DC power. The converted DC power routes to a battery charging circuit and to the inverter for conversion back to AC power. The resulting “double converted” electrical power is pure sine wave  output providing near perfect electrical power for connected equipment.

To ensure 7/24 up time the double conversion UPS topology utilizes a static “bypass switch” within its circuity design. If the P91g-1500Li 1350W Online UPS 200V detects a system failure, audible alarms will sound as the bypass switch is engages. This routes power around the failed UPS and ensures critical load power to target equipment.  This very important feature allows for 100% up time for critical equipment while the UPS can be repaired or replaced.

In the event of total power failure, the UPS will power off the rectifier when the loss of power is detected. Under battery mode the internal backup batteries will continue to supply DC power to the inverter. There is no transfer time as the transition to battery power is instantaneous. This feature provides true uninterruptible power to mission critical equipment.

Technical Specifications



Rated Power Capacity (Apparent/Active)

1500VA (1350W)

Voltage Range


Frequency Range

50/60Hz auto sensing

Surge protection


Rated Voltage (Output)


Wave Form Type

Pure sine wave, zero transfer time

Rated Frequency

50/60Hz ± 0.5Hz

Efficiency (Maximum%)

98% ECO mode, 90% online mode

Crest factor


Overload Capacity

≤ 130% for 2 min; ≤ 200% for 10 sec; >200% for 1 sec

Battery Type

Lithium Ion

Battery quantity and size

Cell Configuration 15S2P

Typical Recharge Time (100%)

1.5 hours to 90% charge

Unit Size (HxWxD)

17.2 x 15.1 x 3.5

Unit Weight


Cord Length

8 ft, C13 to L6–20P

Output Connection

(8) IEC C13

Operating Temperature

32–104°F (0–40°C)

Acoustic Noise

< 45dBA

Operating Elevation

11,500 ft above sea level


UL, cUL, RoHS, FCC Class A, battery packs comply to UL1973, UN38.3 for battery transportation


RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus)


2 years electronics
6 years electronics, 6 years battery warranty (USA and Canada)

Whats in the box

ViewPower software, horizontal brackets, tower pedestals, user manual

Available Options

Bypass distribution (XBDM), power distribution (XPDU), 4-post rail kit, 2-post shelf kit, wall mount bracket

Weight41.7 lbs
Dimensions27.6 × 22.2 × 9.45 in

Estimated Run-Time

Battery Run Time Graph