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Large black 6U rack-tower UPS with LCD display and four rear outlets

CyberPower

CyberPower OL8KRT 8000VA 8000W UPS 6U Tower/Rack Hardwire 4 Outlets

SKU CH-HWES-JTD8T MPN OL8KRT

Online double-conversion UPS delivers 8000 VA / 8000 W with four outlets, hardwire input, LCD monitoring and network management in a 6U rack/tower chassis

  • Input Voltage Range120 VAC - 139 VAC for 0-25% Load 140 VAC - 159 VAC for 0-50%
  • Input Frequency40 - 70 Hz
  • Input ConnectionHardwire
  • VA Rating8000 VA
  • Watts8000 W
  • Output Frequency49.75/50.25 Hz (auto-sensing/configurable) 59.75/60.25 Hz (a
  • 8000 VA and 8000 W deliver full power to critical loads
  • Four outlets include three NEMA L6-30R and one hardwire terminal block
  • Online double-conversion topology provides pure sine wave output
  • PowerPanel Business Edition enables remote monitoring via USB, serial or Ethernet
  • 7 minutes runtime at full load and 12 minutes at half load

Tower/Rack 8000 VA UPS

The CyberPower OL8KRT is a double-conversion online UPS rated at 8000 VA and 8000 W. It mounts in a 6U tower or rack enclosure and accepts a hardwire input connection. Four output connections are provided: three NEMA L6-30R outlets and one hardwire terminal block. The unit suits servers and network gear that require continuous sine-wave power.

Sustained-load runtime

At full rated load the internal sealed lead-acid batteries deliver 4.7 minutes of runtime. At half load the runtime extends to 12 minutes. Recharging from empty to 90 percent capacity takes 5 hours. The battery pack is user-replaceable using the RB1290X10 module. Audible alarms signal battery mode, low battery, overload and UPS fault conditions during extended operation.

Pre-installation checks

Verify that your electrical supply can provide a hardwire feed within the 120–280 VAC input window and 40–70 Hz frequency range. Confirm rack or floor space for the 17 x 10.5 x 26 inch chassis. Ensure management access via USB, serial, Ethernet, relay or EPO ports matches your monitoring infrastructure. The RJ-45 data-line protector covers one network path.

Highlights

  • 8000 VA and 8000 W deliver full power to critical loads
  • Four outlets include three NEMA L6-30R and one hardwire terminal block
  • Online double-conversion topology provides pure sine wave output
  • PowerPanel Business Edition enables remote monitoring via USB, serial or Ethernet
  • 7 minutes runtime at full load and 12 minutes at half load

Specifications

BrandCyberPower
SeriesSmart App Online UPS
ModelOL8KRT
Input Voltage Range120 VAC - 139 VAC for 0-25% Load
140 VAC - 159 VAC for 0-50% Load
160 VAC - 179 VAC for 0-75% Load
180 VAC - 280 VAC for 0-100% Load
Input Frequency40 - 70 Hz
Input ConnectionHardwire
VA Rating8000 VA
Watts8000 W
Output Frequency49.75/50.25 Hz (auto-sensing/configurable)
59.75/60.25 Hz (auto-sensing/configurable)
Outlets4
Outlet Type3 x NEMA L6-30R
1 x Hardwire Terminal Block
Battery TypeSealed Lead Acid
Battery Run Time4.7 min at Full Load / 12 min at Half Load
Battery Recharge Time5 Hours (0% to 90% charged)
Battery ReplaceableRB1290X10
AlarmsBattery Mode
Low Battery
Overload
UPS Fault
Interface PortUSB, Serial, Ethernet, Relay, EPO
Management SoftwarePowerPanel Business Edition
RackmountableYes
Data Line Protection1 x RJ-45 In/Out
Surge Energy Rating2430 Joules
ProtectionUPS Output Cut off Immediately
Input Fuse / Circuit Breaker Protection
Dimensions17'' x 10.5'' x 26'' (W x H x D)
Weight226.6 lbs.
Shipping weight126.73 kg
Package size900 × 638 × 600 mm

Questions about this item

How much heat does the OL8KRT generate when running at full 8000 W load all day?

At 8000 W output the unit draws its full rated power; waste heat equals the difference between input and output wattage, so plan ventilation for several kilowatts of continuous thermal load in a 6U rack space.

What electrical infrastructure must already exist to install the OL8KRT?

A hardwired 200–240 VAC feed with a dedicated circuit breaker, plus conduit and terminations for the single hardwire terminal block and three NEMA L6-30R outlets.

Will the OL8KRT’s auto-sensing 49.75/50.25 Hz and 59.75/60.25 Hz output work with older servers that expect fixed 50 Hz or 60 Hz?

Yes — the UPS locks to the incoming frequency within those narrow bands, delivering a stable sine wave that legacy equipment designed for nominal 50 Hz or 60 Hz will accept without modification.

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