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CyberPower OL6KSTF 2U rackmount UPS with six NEMA 5-20R outlets

CyberPower

CyberPower OL6KSTF 6000VA/6000W Step-Down Transformer UPS

SKU CH-AAQQ-NGXCF MPN OL6KSTF

Provides 6000VA/6000W step-down isolation with 120V and 208V output via six NEMA 5-20R outlets and hardwire terminal block

  • Dual 120V and 208V output from single unit
  • Six NEMA 5-20R receptacles accept 5-15P and 5-20P plugs
  • Hardwire terminal block connects directly to electrical subpanel
  • NEMA L6-30P input plug with 6-foot cord included
  • Over-temperature protection plus resettable input and output breakers

6000VA Step-Down Transformer UPS

The CyberPower OL6KSTF is a 6000VA/6000W smart sine wave UPS that steps down voltage to supply both 120V and 208V outputs. It targets server rooms and network closets that need clean power for mixed-voltage equipment. The unit installs in a 2U rack space and includes hardwire terminal blocks for subpanel connections. Six NEMA 5-20R receptacles accept standard 5-15P and 5-20P plugs.

Sustained load protection

Over-temperature protection shuts the unit down before internal heat exceeds safe limits. Resettable input and output breakers trip on overload or fault conditions without requiring fuse replacement. The sine wave output maintains waveform quality during extended battery operation. A NEMA L6-30P input cord with removed outer jacket connects to a 30A branch circuit.

Pre-installation checklist

Verify that your electrical supply provides a 30A circuit with an L6-30R receptacle for the input plug. Confirm the installation rack offers 2U of clearance and can accommodate hardwired output to a subpanel if required. Ensure connected devices operate within the 120V or 208V output range and draw no more than 20A per receptacle. Check that total connected load stays within the 6000W rating.

Highlights

  • Dual 120V and 208V output from single unit
  • Six NEMA 5-20R receptacles accept 5-15P and 5-20P plugs
  • Hardwire terminal block connects directly to electrical subpanel
  • NEMA L6-30P input plug with 6-foot cord included
  • Over-temperature protection plus resettable input and output breakers

Specifications

BrandCyberPower
Shipping weight43.31 kg
Package size889 × 594 × 191 mm

Questions about this item

How loud is the CyberPower OL6KSTF when it runs continuously under load?

The unit includes over-temperature protection that activates if internal heat exceeds safe parameters, and resettable input and output breakers protect against overload faults during extended operation.

What input connection does the OL6KSTF require on site?

It ships with a 6-foot cord terminated in a NEMA L6-30P plug to ROJ for hardwire connection to a 30 A, 208 V supply.

Can the OL6KSTF power legacy 120 V equipment alongside newer 208 V loads?

Yes, its step-down isolation transformer delivers both 120 V and 208 V simultaneously through six NEMA 5-20R outlets and a hardwire terminal block.

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