We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black 1U rackmount UPS with front LCD panel and five rear outlets

Vertiv

Vertiv PSI5-1000RM1201U_ 1000VA 900W 120V 1U UPS

SKU CH-KEFP-6RF74 MPN PSI5-1000RM1201U_

1U rack-mount UPS delivering 1000VA/900W pure sine wave output with AVR, .9 power factor and two programmable outlets

  • Voltage version120 V
  • AC input voltage75-146 VAC
  • Power input5-15P
  • Volt-ampere rating1000 VA
  • Power rating900 W
  • Voltage output120 VAC (100/110/115/125 VAC user-configurable)
  • AVR corrects voltage fluctuations from 75 to 146 VAC
  • 1U rack height saves space versus typical 2U units
  • 9 power factor delivers 900 W from 1000 VA rating
  • Two programmable outlets let you prioritise critical loads
  • Pure sine wave output on battery protects sensitive IT equipment

1U rack-mount UPS for network closets

The Vertiv PSI5-1000RM1201U is a line-interactive uninterruptible power supply rated at 1000 VA and 900 W. It occupies a single 1U rack space while delivering pure sine wave output on battery. The unit suits servers, routers, storage arrays and VoIP gear in tight rack environments.

Replaces bulkier 2U units when rack space is scarce

Automatic Voltage Regulation corrects input fluctuations between 75 and 146 VAC without using battery capacity. The 0.9 power factor provides more usable wattage for connected loads than lower-factor designs. Upgrade when existing UPS hardware cannot fit a 1U slot or lacks programmable outlet control.

Runtime drops sharply as load approaches 900 W

At full 900 W the battery lasts five minutes; at 450 W it extends to 13 minutes. Output voltage is user-configurable to 100, 110, 115, 120 or 125 VAC. Remote monitoring requires an optional communication card inserted into the IntelliSlot port.

How it compares

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

Price $576.99
Cheaper than about 63% of the 1,153 comparable items (median $948.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameVertiv
Product linePSI5
Model namePSI5-1000RM1201U
Ports & slots
Communication portsUSB, EPO Terminals
Power
Voltage version120 V
AC input voltage75-146 VAC
Power input5-15P
Volt-ampere rating1000 VA
Power rating900 W
Voltage output120 VAC (100/110/115/125 VAC user-configurable)
Power outlets5
Runtime on battery900 W: 5 min
450 W: 13 min
Size & build
Rack mounting1U
Shipping weight18.51 kg
Package size594 × 561 × 140 mm

Questions about this item

What rack height and mounting hardware does the 1U UPS require?

The unit fits a standard 1U rack space and ships with rack mounting hardware included for installation.

How do you connect the USB interface and EPO terminals during setup?

Plug the USB cable into the UPS port and a host system; wire the EPO terminals to an emergency power-off circuit if required by your safety plan.

When should the internal battery be replaced based on the listed run times?

Plan replacement when a 900 W load drops below 5 minutes or a 450 W load falls under 13 minutes of backup.

More in Uninterruptible Power Supplies (UPS)

Similar items