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Vertiv PSI5 lithium-ion UPS mini tower, dark rectangular unit with LCD display and six NEMA outlets

Vertiv

Vertiv PSI5-1500MT120LI UPS 1500VA 1350W 120V Lithium-Ion Mini Tower

SKU CH-M0GJ-HK61K MPN PSI5-1500MT120LI

Lithium-ion line-interactive UPS delivering 1500VA and 1350W pure sine-wave output with six NEMA 5-15R outlets, USB management and a 10-year battery life

  • Voltage version120VAC Default; 100/110/115/125VAC User Selectable
  • AC input voltage75-146 VAC
  • Input line frequency55 to 65 Hz (57 to 63 Hz Battery to Normal Comeback)
  • Power inputNEMA 5-15P (90deg type)
  • Volt-ampere rating1500 VA
  • Power rating1350 W

Model PSI5-1500MT120LI

  • 10-year lithium-ion battery life reduces replacement cycles
  • Pure sine wave output protects sensitive electronics
  • Automatic voltage regulation corrects 75-146 VAC input without battery drain
  • 1500 VA 1350 W capacity supports critical loads
  • USB interface enables remote monitoring and management

Vertiv PSI5 Lithium-Ion UPS 1500VA 1350W

The Vertiv PSI5-1500MT120LI is a line-interactive uninterruptible power supply with a 1500 VA and 1350 W rating. It uses lithium-ion batteries that deliver up to 7.5 minutes of runtime at full load and 17.7 minutes at half load. The unit recharges to 90 percent capacity in two hours and provides pure sine wave output.

Desktop workstations and network gear needing pure

This UPS suits users who want lithium-ion longevity, a ten-year battery design life, and programmable outlet control via USB. It is not for installations needing longer runtime at full load, higher VA ratings, rackmount form factors, or input voltages outside the 75 to 146 VAC range without an external transformer.

Six NEMA 5-15R outlets with programmable control

Six NEMA 5-15R receptacles are provided, allowing load-shedding or sequenced restart through the USB interface. The input connects via a NEMA 5-15P plug, and the output voltage can be set to 100, 110, 115, 120, or 125 VAC to match local requirements.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $1,181.99
Pricier than about 56% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameLiebert
Product linePSI5
Model namePSI5-1500MT120LI
Ports & slots
Communication portsUSB
Power
Voltage version120VAC Default; 100/110/115/125VAC User Selectable
AC input voltage75-146 VAC
Input line frequency55 to 65 Hz (57 to 63 Hz Battery to Normal Comeback)
Power inputNEMA 5-15P (90deg type)
Volt-ampere rating1500 VA
Power rating1350 W
Voltage output120 VAC Default; 100/110/115/125 VAC User Selectable
Power outlets6
Battery typeLithium Ion
Runtime on batteryFull load: 7.5 min
Half load: 17.7 min
Battery charge time2hrs to 90%
Size & build
Rack mountingTower
Product dimensions8.66 in × 6.22 in × 15.62 in
Product weight28 lb (12.7 kg)
Shipping weight13.93 kg
Package size502 × 330 × 241 mm
Environment & compliance
Regulatory approvalsUL 1642 (LiFe cells), UL 1973 (LiFe pack), UL 1778, CSA 22.2 no. 107.3
Temperature rangeOperating Temperature,°F (°C): 32° to 104° (0° to 40°)
Storage Temperature °F (°C): 5° to 120° (-15° to 50°)
Humidity range20% - 90%, non-condensing
More details
Surge protectionANSI C62.41, Category A, Level 3

Other versions of this model

5 more in the same range

Questions about this item

How loud does the 1500VA lithium-ion mini tower run during all-day operation?

The unit operates silently on battery and within a 32° to 104°F range; fan noise only appears under heavy load or high ambient temperature.

What input plug and outlet types must already be present for the PSI5-1500MT120LI to connect?

It requires a NEMA 5-15P wall receptacle and provides six NEMA 5-15R outlets for connected equipment.

Will the pure sine-wave output and USB management work with a ten-year-old server that only has a serial port?

The pure sine wave is compatible with legacy power supplies, but the USB interface needs a USB-to-serial adapter for older management software.

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