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 rack-mount UPS with seven outlets and LCD display

CyberPower

CyberPower OL3KRM 3000VA 2400W UPS 6x5-20R 1xL5-30R

SKU CH-X3DF-5QJYJ MPN OL3KRM

Double-conversion online UPS delivers 2400 W from a rack-mountable chassis with six NEMA 5-20R and one NEMA L5-30R outlet

  • Voltage version120 V
  • AC input voltage100–125 V
  • Input line frequency40–70 Hz
  • Power inputNEMA L5-30P
  • Volt-ampere rating3000 VA
  • Power rating2400 W
  • Online double-conversion topology delivers pure sine-wave power
  • Configurable 100/110/115/120/125 V output matches sensitive equipment needs
  • Seven outlets: six NEMA 5-20R plus one NEMA L5-30R for versatile rack connections
  • 2 min runtime at full load / 7.5 min at half load protects critical workloads
  • User-replaceable RB1270X4K battery cartridge extends service life without downtime

Double-Conversion Online UPS

The CyberPower OL3KRM is a rack-mountable uninterruptible power supply that uses double-conversion online topology. It delivers 3000 VA and 2400 W of clean sine-wave output to servers, networking gear or storage arrays that require continuous power conditioning. The unit accepts 100 to 125 VAC input and provides configurable output at 100, 110, 115, 120 or 125 VAC.

Rack Integration and Connectivity

Designed for standard racks, the UPS connects to a 30 A branch circuit through a NEMA L5-30P inlet. Seven rear outlets include six NEMA 5-20R receptacles and one NEMA L5-30R for higher-draw equipment. Management is handled via USB and serial ports, while audible alarms signal battery mode, low battery, overload and UPS fault conditions.

Battery Capacity and Limits

Sealed lead-acid batteries provide 2.2 minutes of runtime at full 2400 W load and 7.5 minutes at half load. Recharge from empty to 90 percent takes four hours using the RB1270X4K replacement kit. Overload protection bypasses at 102 to 130 percent for twelve seconds and shuts down above 130 percent on battery, so sustained loads beyond the rated wattage are not supported.

How it compares

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

Price $1,178.99
Pricier than about 56% 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 nameCyberPower
Product lineEssential Online UPS
Model nameOL3KRM
Ports & slots
Communication portsUSB, Serial
Power
Voltage version120 V
AC input voltage100–125 V
Input line frequency40–70 Hz
Power inputNEMA L5-30P
Volt-ampere rating3000 VA
Power rating2400 W
Voltage output100/110/115/120/125 VAC +/- 2% (configurable)
Power outlets7
Battery typeSealed Lead Acid
Runtime on battery2.2 min Full Load / 7.5 min Half Load
Battery charge time4 h (0% to 90% charged)
Replacement batteryRB1270 × 4K
AlertsBattery Mode
Low Battery
Overload
UPS Fault
Surge protection rating710 Joules
Size & build
Rack mountingYes
Product dimensions3.41 in × 17.05 in × 18.31 in
Product weight48.28 lb (21.9 kg)
Shipping weight25.70 kg
Package size570 × 560 × 240 mm
Environment & compliance
Regulatory approvalsUL 1778
CSA C22.2 NO.107.3
FCC Part 15 Class A
Temperature rangeOperating Temperature: 32–104 °F (0–40 °C)
Storage Temperature: 5–113 °F (-15–45 °C)
Humidity rangeOperating Relative Humidity: 0–0.9 % (non-condensing)
Storage Relative Humidity: 0–0.95% (non-condensing)

Questions about this item

How long will the battery last at full 2400W load before shutdown?

The sealed lead-acid pack delivers 2.2 minutes at full load and 7.5 minutes at half load before the low-battery alarm triggers shutdown.

What is the typical fan noise and heat output when the unit runs continuously in a 40°C rack?

The double-conversion design operates up to 40°C with non-condensing humidity; fan speed ramps with load and temperature, so sustained full-load operation will produce noticeable airflow and warmth.

Which input plug and circuit must already be installed for this UPS to power on?

A NEMA L5-30P receptacle on a 30 A branch circuit is required to connect the UPS input.

More in Uninterruptible Power Supplies (UPS)

Similar items