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Compact 1U rack tower UPS with matte black finish and front status display

Vertiv

Vertiv PSI5-500SRT1ULI 500VA 450W Lithium-Ion UPS 1U Rack/Tower

SKU CH-2TT3-MR3Y6 MPN PSI5-500SRT1ULI

Lithium-ion battery backup delivers 500 VA and 450 W through four NEMA 5-15R outlets in a 1U rack or tower form factor

  • International Version120VAC Default; 100/110/115/120/125VAC
  • Input Voltage Range75 - 150VAC
  • Input Frequency50/60Hz Auto Sensing 60Hz default
  • Input ConnectionNEMA 5-15P
  • VA Rating500VA
  • Watts450W

Option PSI5-500SRT1ULI

  • Lithium-ion battery recharges to full in 2 hours
  • 500VA 450W line-interactive UPS with 6 ms transfer time
  • 1U rack or tower form fits standard cabinets
  • Four NEMA 5-15R outlets with ANSI C62.41 Category A surge protection
  • USB interface enables remote monitoring and management

500VA 1U rack-tower UPS

The Vertiv PSI5-500SRT1ULI is a line-interactive uninterruptible power supply rated at 500VA and 450W. It fits a single rack unit or stands as a tower for IT equipment, server rooms and network closets. Four NEMA 5-15R outlets connect protected loads from a NEMA 5-15P input cord. Lithium-ion cells replace traditional lead-acid batteries for longer service life and faster recharge.

Hot-swappable lithium-ion battery and USB management

Internal lithium-ion modules recharge to full capacity in two hours and can be swapped without powering down connected gear. A USB port enables local monitoring and shutdown scripting, while an optional network card adds remote management. Programmable outlets let administrators shed non-critical loads during extended outages to preserve runtime for essential devices.

Verify 120V input and outlet count before ordering

The unit accepts 100 to 125VAC nominal input with a 75 to 150VAC operating window and auto-senses 50 or 60Hz frequency. Ensure your facility voltage matches this range and that four NEMA 5-15R receptacles suit your equipment plugs. Rack mounting requires a standard 1U opening; tower placement needs a stable surface within the 32 to 104°F operating temperature window.

Highlights

  • Lithium-ion battery recharges to full in 2 hours
  • 500VA 450W line-interactive UPS with 6 ms transfer time
  • 1U rack or tower form fits standard cabinets
  • Four NEMA 5-15R outlets with ANSI C62.41 Category A surge protection
  • USB interface enables remote monitoring and management

Specifications

BrandLiebert
SeriesPSI5
ModelPSI5-500SRT1ULI
International Version120VAC Default; 100/110/115/120/125VAC
Input Voltage Range75 - 150VAC
Input Frequency50/60Hz Auto Sensing 60Hz default
Input ConnectionNEMA 5-15P
VA Rating500VA
Watts450W
Outlets4
Outlet Type4 x NEMA 5-15R
Battery TypeLithium Ion
Battery Run TimeFull load: 3.4 mins
Half load: 8.2 mins
Battery Recharge Time2 hrs to 100%
Interface PortUSB
ApprovalsUL 1778 5th Edition, UL1973 3rd Ed, CSA C22.2 107.3-14
Rackmountable1U Rack/Tower
Surge ProtectionANSI C62.41 Category A
TemperatureOperating Temperature,°F (°C): 32° to 104° (0° to 40°)
Storage Temperature °F (°C): 14° to 113° (-10° to 45°)
Humidity20% - 90%, non-condensing
Dimensions1.67" x 17.28" x 8.85"
Weight12.3 lbs.
Shipping weight6.62 kg
Package size480 × 437 × 42 mm

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Questions about this item

How often will the internal lithium-ion batteries need to be replaced in this UPS?

The lithium-ion batteries are hot-swappable and recharge to 100 percent in 2 hours; typical service life exceeds that of lead-acid cells, so replacement intervals are longer.

What runtime limit appears first when the PSI5-500SRT1ULI runs at full 450 W load?

At full load the unit provides 3.4 minutes of battery runtime before shutdown.

What are the operating temperature and humidity ranges for continuous daily operation?

The UPS is rated for 32 to 104 °F (0 to 40 °C) and 20 to 90 percent non-condensing humidity while running all day.

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