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Rectangular black metal chassis with LCD screen and four rear outlets

CyberPower

CyberPower OL6KRTHDL 6000VA/6000W UPS 3U Rack/Tower

SKU CH-V35W-TCKHT MPN OL6KRTHDL

Double-conversion online UPS delivering 6000 VA/6000 W with sine-wave output, 3U rack/tower form factor, and 10.4-minute half-load runtime

  • Voltage version120 V
  • AC input voltage120-139 VAC for 0-25% Load 140-159 VAC for 0-50% Load 160-17
  • Input line frequency40–70 Hz
  • Power inputNEMA L6-30P
  • Volt-ampere rating6000 VA
  • Power rating6000 W
  • Double-conversion topology supplies clean sine-wave power continuously
  • Unity power factor delivers full 6000 W capacity from 6000 VA rating
  • 3U high-density rack/tower form factor fits dense server racks
  • LCD panel auto-rotates for clear status in any orientation
  • ECO mode reaches 96% efficiency to cut energy costs

High-density 3U rack/tower UPS

The CyberPower OL6KRTHDL is a double-conversion online UPS delivering 6000 VA and 6000 W in a 3U form factor. It provides pure sine-wave output at a unity power factor for critical servers, networking gear and lab equipment that cannot tolerate any transfer time. The unit installs in a rack or as a tower with an auto-rotating LCD.

Replaces line-interactive or standby units

A move from line-interactive to double-conversion is justified when connected loads require continuous voltage and frequency regulation without any switchover delay. The OL6KRTHDL accepts an input window from 120 VAC up to 280 VAC and maintains output within ±2% at user-selectable voltages of 200, 208, 220, 230 or 240 VAC. GreenPower UPS ECO mode raises efficiency to 96% when utility power is stable.

Runtime and outlet capacity

Four hardwired outlets — two NEMA L6-20R and two NEMA L6-30R — support multiple high-draw devices on a single NEMA L6-30P input cord. Internal sealed lead-acid batteries deliver 10.4 minutes at half load and 3.1 minutes at full load, recharging to 90% in four hours. A single RB1290X12 battery pack is user-replaceable. Surge protection is rated at 2430 joules with input circuit-breaker backup.

How it compares

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

Price $6,259.99
Pricier than about 90% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameCyberPower
Product lineSmart App Online UPS
Model nameOL6KRTHDL
Ports & slots
Communication portsSerial
Power
Voltage version120 V
AC input voltage120-139 VAC for 0-25% Load
140-159 VAC for 0-50% Load
160-179 VAC for 0-75% Load
180-280 VAC for 0-100% Load
Input line frequency40–70 Hz
Power inputNEMA L6-30P
Volt-ampere rating6000 VA
Power rating6000 W
Power outlets4
Battery typeSealed Lead Acid
Runtime on batteryRuntime at Full Load: 3.1 min
Runtime at Half Load: 10.4 min
Battery charge time4 h (0% to 90% charged)
Replacement battery(1) RB1290 × 12
AlertsBattery Mode
Low Battery
Overload
UPS Fault
Surge protection rating2430 Joules
Built-in protectionUPS Output Cut off Immediately
Input Fuse / Circuit Breaker Protection
Size & build
Rack mountingYes
Product dimensions17 in × 5.1 in × 28.3 in
Product weight118 lb (53.5 kg)
Shipping weight90.72 kg
Package size889 × 599 × 452 mm

Questions about this item

What rack space and clearance does the 3U high-density chassis need for installation?

The unit occupies 3U of rack height and uses a rack/tower convertible design; the LCD screen auto-rotates for tower orientation, so allow front access for the display and rear access for the hardwire terminal block and NEMA L6-30P inlet.

Which wiring steps are required for the hardwire terminal and NEMA L6-30P input, and what is the common mistake?

Connect the pre-installed NEMA L6-30P cord to a 30 A branch circuit or land conductors on the hardwire terminal block; the step often missed is configuring the output voltage to 200, 208, 220, 230 or 240 VAC ±2 % before powering on.

When and how should the internal battery pack be replaced?

Replace the RB1290X12 battery pack when runtime drops below the rated 3.1 minutes at full load or 10.4 minutes at half load; the pack is user-replaceable and recharges to 90 % in 4 hours after installation.

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