OL10KSTF FrontOL10KSTF leftOL10KSTF Right


$1,759.00 MSRP 
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  • Step-down transformer: 10,000 VA / 10,000 W
  • Output: 120 V, 208 V, 50/60 Hz
  • Power conversion: 208 V from utility, UPS, or generator to 120 V output
  • Plug type & cord: 3 ft 6AWGHW3FT hardwire power cable kit
  • Outlets:(6) NEMA 5-20R, (1) Hardwire Terminal Block
  • Form factor: 2U Rack/Tower convertible
  • Overload protection: Output circuit breakers
  • Over temperature protection: Yes
  • Warranty: Three year

Product Overview

The CyberPower Smart App Online OL10KSTF rack/tower step-down isolation transformer converts 200 V to 240 V input voltage originating from utility power, a UPS, or a generator to 120 V output.

The OL10KSTF has a capacity of 10,000 VA / 10,000 Watts. It features six (6) NEMA 5-20R receptacles that can support output to NEMA 5-15P and 5-20P plug power cords. A hardwire output terminal block provides a means to connect to an electrical subpanel.

The included 3-foot power cable kit (6AWGHW3FT) connects the OL10KSTF to input power. Over temperature protection safeguards your OL10KSTF from damage if the internal heat exceeds safe operating parameters.

A Three-Year Warranty ensures that this step-down transformer has passed our highest quality standards in design, assembly, material or workmanship.

Product Features
  • Step-Down Transformer
    The step-down transformer provides IT managers the ability to support both 120 V and 208 V output requirements. With six (6) NEMA 5-20R outlets available, users will have sufficient outlets to connect multiple 120 V devices running at 15 A and/or 20 A. If additional outlets are needed, CyberPower has a number of different Power Distribution Units (PDU) making it easy to address your specific outlet needs.
  • 6AWGHW3FT Input Power Cable Kit
    A 3 foot hardwire input power cable kit is included.
  • Rack/Tower Versatility
    Allows for horizontal rack or vertical tower installation.
  • Frequency Supported
    The OL10KSTF has the flexibility to support both 50 Hz and 60 Hz output.
  • Over Temperature Protection
    Protects the OL10KSTF from damage if the internal heat exceeds safe operating parameters.
  • Resettable Input and Output Circuit Breakers
    Convenient, resettable switches that provide protection from an input or output overload and faults.
  • Three Year Warranty
    CyberPower will repair or replace a defective product within three years of the purchase date. See warranty for details.
Expand All
Cord Length 3 ft (0.9 m)
Input Frequency Range 50 Hz – 60 Hz
Input Plug Type Hardwire (6AWGHW3FT Power Cable Kit included)
Maximum Input Current 50A
Nominal Input Voltage 200 – 240 VAC
Nominal Output Voltage 120 VAC
208 VAC
Outlet Type 6 – NEMA 5-20R
1 – Hardwire Terminal Block
Outlets – Total 7
Output Frequency 50/60 Hz (auto-sensing/configurable)
Overload Protection Circuit Breaker Protected
Step Down Thermal Dissipation 1914 BTU/hr
USB Charge Port No
VA by Input Type 10,000 (10 kVA) at 230, 240 V input
9,000 (9 kVA) at 208, 220 V input
8,000 (8 kVA) at 200 V input
Watts by Input Type 10,000 (10 kW) at 230, 240 V input
9,000 (9 kW) at 208, 220 V input
8,000 (8 kW) at 200 V input
Color Black
Form Factor Rack / Tower
Material of Construction Metal
Mounting Hardware Yes
Rack Height 2U
Physical Dimensions – (WxHxD) (cm) 43.31 x 8.89 x 60.96 (cm)
Physical Dimensions – (WxHxD) (in) 17.05 x 3.5 x 24 (in)
Physical Dimensions – (WxHxD) (mm) 433 x 89 x 610 (mm)
Physical Weight (kg) 54.29
Physical Weight (lb) 119.7
Dimensions – Shipping
Shipping – Weight (kg) 74.25
Shipping – Weight (lb) 163.7
Shipping Dimensions – (WxHxD) (cm) 59.94 x 33.02 x 89.92 (cm)
Shipping Dimensions – (WxHxD) (in) 23.6 x 13.0 x 35.4 (in)
Shipping Dimensions – (WxHxD) (mm) 599.44 x 330.2 x 899.16 (mm)
Audible noise at 1m from surface of unit 58 dBA
Operating Elevation 0 – 10000 ft (0 – 3048 m)
Operating Relative Humidity 0 – 90 % (non-condensing)
Operating Temperature 32 – 104 °F (0 – 40 °C)
Storage Elevation 0 – 50000 ft (0 – 15239 m)
Storage Relative Humidity 0 – 95% (non-condensing)
Storage Temperature -4 – 113 °F (-20 – 45 °C)
Environmental RoHS Compliant
Safety UL1778 5th Ed.
CSA C22.2 No.107.3-05
Extended Warranty Option WEXT5YR-ACC2C
Product Warranty 3 Year Limited Warranty


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