Static Frequency Converters
PX Electronics supplies Static Frequency Converters for applications where available mains power does not match the voltage, frequency or phase arrangement required by the connected equipment.
A Static Frequency Converter converts an AC or DC input supply into a regulated AC output at the required frequency. Common configurations include 50Hz to 60Hz frequency conversion, 60Hz to 50Hz conversion, 400Hz aircraft power, single-phase output, three-phase output, single-phase input to three-phase output systems and DC-input converters.
PX systems are configured around the available supply, the required output and the connected load. This matters because the correct converter rating depends not only on kVA, but also on load type, starting current, power factor, duty cycle and installation environment.
Available Static Frequency Converter Products
View the current PX Electronics Static Frequency Converter product range below. Each product can be configured around the required input supply, output voltage, frequency, load type and installation environment.
What Is a Static Frequency Converter?
A Static Frequency Converter is a solid-state power conversion system that changes the frequency of an electrical supply. Depending on the configuration, it can also change voltage, phase arrangement and output format.
Typical examples include converting a UK 50Hz supply to 60Hz for imported machinery, converting 60Hz to 50Hz for export testing, or generating 400Hz AC power for aircraft and avionics equipment.
Unlike a rotary converter, a static converter uses electronic power conversion rather than a motor-generator set. This makes it better suited to modern installations where compact size, controlled output, monitoring and system integration are important.
Core Capabilities
50Hz, 60Hz and 400Hz Output
PX Static Frequency Converters can be configured for standard industrial frequency conversion, international equipment testing and specialist 400Hz aviation power.

Single Phase and Three Phase Systems
Converters are available for single-phase and three-phase output arrangements, with three-wire or four-wire configurations where required.

Voltage and Frequency Conversion
The output voltage and frequency can be matched to the connected equipment, allowing machinery and electrical systems to operate from an otherwise unsuitable supply.

Load-Based Selection
Each converter is selected around the connected load, including continuous kVA, load type, starting current, power factor, crest factor and duty cycle.

Protection and Monitoring
Systems can include electronic protection, front-panel metering, alarms, remote interfaces, volt-free contacts and project-specific control options.

Typical Applications
PX Static Frequency Converters are used across applications where equipment requires a supply different from the available mains power. Typical uses include:
- 50Hz to 60Hz frequency conversion
- 60Hz to 50Hz frequency conversion
- 400Hz aircraft and avionics power
- Imported machinery operation
- Export equipment testing
- Laboratory and R&D power systems
- Factory acceptance testing
- Industrial machinery and production equipment
- Marine and offshore electrical systems
- Defence and military equipment
- Rail and transport auxiliary systems
- Motor, pump and compressor testing
- Transformer and rectifier-fed loads
- Maintenance, repair and overhaul facilities
- Temporary and mobile power installations
Choosing the Correct Static Frequency Converter
The correct Static Frequency Converter depends on the full electrical requirement, not just the equipment nameplate rating. PX Electronics will normally review:
- Available input voltage, phase and frequency
- Required output voltage, phase and frequency
- Continuous load in kVA, kW or amperes
- Load type
- Starting or inrush current
- Power factor and crest factor
- Duty cycle
- Neutral requirement
- Installation environment
- Control and monitoring requirements
- Test documentation or compliance requirements
Motors, compressors, transformers and rectifier-fed equipment often require additional capacity because their starting or inrush current can be significantly higher than their normal running current.
Why Choose PX Electronics for Static Frequency Converters?
PX Electronics supplies configured Static Frequency Converter systems rather than relying only on standard catalogue selections.
This is important because two converters with the same kVA rating can behave very differently depending on the load, input supply and operating environment. A converter for a laboratory test bench is not specified in the same way as a 400Hz aircraft power system or an industrial converter feeding a high-inrush machine.
PX supports customers from initial specification through to quotation, production, factory testing and after-sales support. Options can include alternative voltage arrangements, phase configurations, enclosure formats, communication interfaces, connectors, factory test records, Certificates of Conformity and customer witness testing.
Static Frequency Converter FAQs
What is a Static Frequency Converter?
A Static Frequency Converter is an electronic power conversion system that converts an available AC or DC supply into an AC output at the required frequency.
What is a Static Frequency Converter used for?
Static Frequency Converters are used where equipment requires a different frequency from the available supply. Common examples include 50Hz to 60Hz conversion, 60Hz to 50Hz conversion and 400Hz aircraft power.
Can a Static Frequency Converter change voltage as well as frequency?
Yes. Static Frequency Converters can be configured to provide the required output voltage as well as the required output frequency.
What is the difference between a Static Frequency Converter and a VFD?
A VFD is normally used to control the speed of a compatible motor. A Static Frequency Converter provides a regulated AC supply and may be suitable for complete electrical equipment, including motors, transformers, controls, heaters and electronic loads.
How do I choose the correct Static Frequency Converter?
Selection should be based on the input supply, required output, continuous load, load type, starting current, duty cycle, installation environment and control requirements. PX Electronics can review these details and recommend the correct configuration.
Need help choosing a Static Frequency Converter?
Contact PX Electronics for product advice, specification support or a quotation for your application.