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CyberPower OL10KSTF 10 kVA Step-down & Isolation Transformer - Hardwire Input - 120/208V Output - 2U Rack/Tower Mountable - 3-Year Warranty
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Product Features
Product Overview
The CyberPower OL10KSTF is a 10 kVA step-down and isolation transformer engineered for commercial and industrial power management applications where voltage transformation and electrical isolation are required. This unit converts 230V AC input power to 120V or 208V AC output, providing both step-down functionality and complete galvanic isolation to protect sensitive connected equipment from power anomalies, ground loops, and electrical noise interference.
Designed with installation flexibility as a core priority, the transformer supports both tower and rack-mount deployment in a compact 2U form factor. The hardwired input connection ensures a secure, permanent installation that eliminates receptacle-based connection points, while six NEMA 5-20R outlets and a dedicated terminal block output offer versatile connectivity options for various equipment configurations across data center, industrial, and commercial environments.
With a robust 10,000 VA power rating and 50A maximum line current capacity, the OL10KSTF handles substantial equipment loads while delivering clean, regulated power output. The transformer operates at 50/60 Hz frequency, ensuring compatibility with utility feeds, UPS systems, and generator power sources throughout North America and other regions with similar electrical standards.
Technical Overview
At the core of the OL10KSTF is a high-efficiency 10 kVA isolation transformer that provides complete electrical separation between input and output circuits. This galvanic isolation eliminates ground loop currents and protects connected equipment from common-mode noise, voltage spikes, and other power disturbances that can damage sensitive electronics or cause operational interference.
The transformer accepts 230V AC single-phase input and delivers dual output voltages of 120V and 208V AC simultaneously, making it compatible with both standard North American 120V equipment and higher voltage 208V devices. Built-in protection features include individual output circuit breakers for overload protection on each output circuit, plus comprehensive over-temperature protection that monitors transformer temperature and prevents thermal damage during extended operation or adverse environmental conditions.
Electrical specifications include a maximum line current of 50A, ensuring the transformer can handle substantial power demands without performance degradation. The hardwired input utilizes a 6AWG cable with terminal block connection for secure power delivery, while output connectivity includes six NEMA 5-20R receptacles rated for 20A, 125V operation plus a terminal block for direct wiring of additional equipment or distribution panels.
Key Product Advantages
The OL10KSTF combines robust power transformation with installation flexibility, offering distinct advantages for demanding environments. The step-down functionality enables operation of 120V equipment on 208V or 230V power sources, while the isolation transformer provides electrical separation that protects sensitive electronics from power disturbances.
Dual Deployment Options
Convertible tower/rack design with included mounting hardware for both installation scenarios.
- 2U rack-mount ears included
- Tower installation tie plate provided
- Left and right hanging brackets
Comprehensive Protection
Multiple safety mechanisms ensure reliable operation and equipment protection.
- Output circuit breakers
- Over-temperature protection
- RoHS compliant construction
Complete Installation Kit
Includes all necessary components for immediate deployment.
- 3 ft hardwire power cable kit
- Terminal block cable glands
- Full complement of mounting hardware
Deployment / Use Cases
The CyberPower OL10KSTF transformer is engineered for environments requiring reliable voltage conversion and power isolation across commercial, industrial, and data center applications. Its 10 kVA capacity supports substantial equipment loads while providing clean, regulated power output with complete electrical separation between input and output circuits.
In data center environments, the transformer enables operation of standard 120V IT equipment from 208V rack power distribution while providing isolation between circuits to prevent ground loop interference in sensitive networking and server equipment. The 2U rack-mountable design maximizes space efficiency in standard 19-inch server racks, with included mounting hardware for both rack and tower deployment scenarios.
Industrial applications benefit from the transformer's ability to power 120V control systems, instrumentation, PLCs, and peripheral devices from 230V industrial power sources commonly found in manufacturing facilities, processing plants, and utility installations. The isolation transformer protects sensitive measurement and control equipment from electrical noise and voltage fluctuations inherent in industrial power environments.
Commercial installations requiring electrical isolation for audio/video systems, medical equipment, laboratory instrumentation, or telecommunications infrastructure utilize the OL10KSTF to eliminate ground loop hum, reduce electromagnetic interference, and provide voltage transformation where mixed-voltage equipment must operate from a single power source. The comprehensive protection features ensure reliable operation in demanding commercial settings.
Data Center Power Distribution
Convert 208V rack power to 120V for standard IT equipment while providing isolation between circuits to prevent ground loop interference in sensitive networking and server installations.
Industrial Control Systems
Power 120V PLCs, instrumentation, and control devices from 230V industrial power sources with complete electrical isolation to protect sensitive equipment from power disturbances.
Commercial Audio/Video & Medical
Eliminate ground loop hum in professional audio systems and provide clean power for medical equipment through complete galvanic isolation between input and output circuits.
Physical Profile
The transformer measures 17.05" wide × 24" deep × 3.5" high (2U rack height), with a substantial weight of 119.7 pounds reflecting its robust construction. The black finish provides a professional appearance suitable for both rack and tower installations. The compact 2U form factor maximizes rack space efficiency while the included mounting hardware supports flexible deployment scenarios.
- Width
- 17.05" (433.07 mm)
- Depth
- 24" (609.60 mm)
- Height
- 3.50" (88.90 mm)
- Weight
- 119.70 lb (54295.01 g)
What's in the Box
The OL10KSTF ships complete with all components required for installation and operation.
Highlights
- 10 kVA step-down and isolation transformer
- Converts 230V input to 120V/208V output
- Hardwired input connection for secure installation
- Six NEMA 5-20R outlets plus terminal block output
- 2U rack/tower convertible form factor
- Output circuit breakers for overload protection
- Over-temperature protection included
- 50A maximum line current capacity
- Includes 3 ft hardwire power cable kit
- 3-year limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | CyberPower Systems, Inc |
| Manufacturer Part Number | OL10KSTF |
| Brand Name | CyberPower |
| Product Line | Smart App Online |
| Product Series | UPS Hardware |
| Product Model | OL10KSTF |
| Product Name | OL10KSTF Step-down and Isolation Transformer |
| Product Type | Isolation/Step-Down Transformer |
| Technical Information | |
| Power Rating | 10 kVA |
| Input Receptacle Type | Hardwired |
| Output Receptacle Type | NEMA 5-20R,Terminal Block |
| Power Description | |
| Input Voltage | 230 V AC |
| Output Voltage | 120 V AC,208 V AC |
| Maximum Line Current | 50 A |
| Physical Characteristics | |
| Height | 3.50" (88.90 mm) |
| Width | 17.05" (433.07 mm) |
| Depth | 24" (609.60 mm) |
| Form Factor | Tower/Rack Mountable |
| Rack Height | 2U |
| Weight (Approximate) | 119.70 lb (54295.01 g) |
| Miscellaneous | |
| Package Contents | OL10KSTF Isolation/Step-Down Transformer 3 ft hardwire power cable kit 2 x Terminal block cable glands Left & right rackmount rails Left & right hanging brackets Input/output terminal block cover Quick Start Guide Registration Card 2U rack mount ears (tower stands) Tower installation tie plate 8 x black flat head screws 12 x black pan head screws 6 x silver pan head screws 8 x Plastic washers 12 x Screw hole dust covers 12 x Rubber pads Safety Instruction Card |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What is the power rating of the CyberPower OL10KSTF transformer?
The CyberPower OL10KSTF is rated at 10 kVA (10,000 VA), providing substantial capacity for commercial and industrial applications requiring voltage transformation and electrical isolation. This power rating supports equipment loads up to 50A maximum line current, making it suitable for data center, industrial control, and commercial installations where reliable power conversion is critical.
What input and output voltages does this transformer support?
The transformer accepts 230V AC single-phase input power and delivers dual output voltages of 120V and 208V AC simultaneously. This configuration enables operation of standard North American 120V equipment from higher voltage power sources while providing complete galvanic isolation between input and output circuits for protection against power disturbances and ground loops.
How many output receptacles are included?
The OL10KSTF provides six NEMA 5-20R receptacles rated for 20A, 125V operation, plus a dedicated hardwire terminal block output. This combination offers versatile connectivity options for various equipment configurations, allowing direct connection of multiple devices while maintaining the option for hardwired distribution to additional equipment or panels.
Is this transformer designed for rack or tower installation?
The transformer features a convertible tower/rack design with a compact 2U form factor. It includes all necessary mounting hardware for both installation scenarios: 2U rack-mount ears for standard 19-inch server racks, plus a tower installation tie plate and hanging brackets for standalone tower deployment. This flexibility makes it suitable for data center, industrial, and commercial environments.
What protection features are built into this transformer?
The transformer incorporates multiple protection mechanisms including individual output circuit breakers for overload protection on each output circuit, plus comprehensive over-temperature protection that monitors transformer temperature to prevent thermal damage during extended operation. These features ensure reliable performance and equipment protection in demanding electrical environments.
What is included in the package for installation?
The package includes the OL10KSTF transformer, a 3 ft hardwire power cable kit (6AWGHW3FT), terminal block cable glands, rackmount rails, hanging brackets, input/output terminal block cover, 2U rack mount ears, tower installation tie plate, comprehensive mounting hardware (screws, washers, dust covers, rubber pads), Quick Start Guide, Registration Card, and Safety Instruction Card for complete installation readiness.
