PXe-F Series 400Hz Static Frequency Converter
PXe-330000-400-F Series
PX Electronics 330000-400-F Series 400Hz static frequency converters provide reliable frequency conversion from standard 50Hz or 60Hz mains power to a stable 400Hz AC output. Designed for avionics testing, aerospace production, aircraft maintenance and specialist 400Hz test environments, the range supports applications where precise output frequency, low noise and dependable continuous operation are required.
As part of the PXe static frequency converter range, these systems use solid-state IGBT conversion technology to deliver controlled aircraft-standard power for sensitive equipment, test benches and ground support applications. Common output configurations include 115/200V 400Hz and 120/208V 400Hz, with fixed or adjustable output options available depending on the test or installation requirement.
Technical Highlights for the PXe-330000-400-F Series 400Hz Static Frequency Conversion:
Stable 400Hz aircraft power
Converts standard 50Hz or 60Hz mains input into a regulated 400Hz AC output, with common aviation configurations including 115/200V and 120/208V.
Solid-state IGBT conversion
Uses AC to DC to AC static conversion with IGBT PWM control for precise frequency regulation and consistent output quality.
Galvanic isolation
Integrated transformer isolation provides electrical separation between input and output, helping support cleaner power for sensitive avionics and aircraft systems.
Harmonic Mitigation Strategy
Optional 12-pulse and 18-pulse rectifier technology reduces input current harmonic distortion by cancelling dominant lower-order harmonics, improving supply compatibility and overall power quality.
Low-noise operation
Designed for reduced acoustic and electrical noise in laboratories, workshops, hangars and controlled test environments.
Monitoring and control options
Front panel metering displays voltage, current, frequency, power and system status, with optional adjustable output, remote control, RS485 and volt-free contacts available.
Configuration:
The PXe-330000-400-F Series has been developed as a compact 400Hz static frequency converter range for applications requiring controlled aircraft-standard power in a practical installation format. The design supports legacy Failsafe SFC requirements while offering modern control, monitoring and configuration options across the range.
Models are available from 1kVA to 50kVA, with larger or bespoke systems available where required. Each unit is designed for straightforward operation, with a clear digital display showing key AC parameters including voltage, current, frequency and power.
For test environments, PXe-F converters can be supplied with variable output voltage and frequency. This allows engineers to simulate different aircraft supply conditions during avionics testing, equipment development and production validation. Adjustment can be provided through front panel controls, depending on the selected configuration.
Remote operation options are available for installations where the converter is located away from the operator or test area. These include a remote control panel with monitoring and control capability, RS485 communications for system data, and volt-free contacts for major status and fault conditions.
The range can also be configured to suit different installation formats, control requirements and site conditions. This allows PX Electronics to supply systems for laboratories, workshops, production areas and specialist 400Hz applications without forcing every project into a standard enclosure or interface arrangement.
Popular Configurations:
We have a variety of models available. Please see below for some popular configurations. Please note: customers may request alternative voltages and frequencies as required; the examples below are for illustration only.
| Model | Capacity | Current Rating | Input | Output | Dimensions | Weight |
|---|---|---|---|---|---|---|
| PXe-110005-400-F
1ph In/1ph Out |
5kVA | 43.4A @ 115V | 230V (L-L) ±10% | 50Hz | Single Phase | 115V (L-N)/ 200V (L-L) | 400Hz | Single Phase | 430x550x430mm | 55kg |
| PXe-130010-400-F
1ph In/3ph Out |
10kVA | 28.9A per phase @ 115V | 230V (L-L) ±10% | 50Hz | Single Phase | 115V (L-N)/ 200V (L-L) | 400Hz | 430x550x630mm | 107kg |
| PXe-330015-400-F
3ph In/3ph Out |
15kVA | 43.4A per phase @ 115V | 400V (L-L) ±10% | 50Hz | 3 phase | 115V (L-N)/ 200V (L-L) | 400Hz | 3 Phase | 550x700x800mm | 220kg |
| PXe-330020-400-F
3ph In/3ph Out |
20kVA | 57.9A per phase @ 115V | 400V (L-L) ±10% | 50Hz | 3 phase | 115V (L-N)/ 200V (L-L) | 400Hz | 550x900x1000mm | 240kg |
| PXe-330030-400-F
3ph In/3ph Out |
30kVA | 86.9A per phase @ 115V | 400V (L-L) ±10% | 50Hz | 3 phase | 115V (L-N)/ 200V (L-L) | 400Hz | 550x900x1000mm | 290kg |
| PXe-330045-400-F
3ph In/3ph Out |
45kVA | 130.4A per phase @ 115V | 400V (L-L) ±10% | 50Hz | 3 phase | 115V (L-N)/ 200V (L-L) | 400Hz | 580x1100x1500mm | 440kg |
Order Codes:
A product order code can be derived from the main ordering information using the structure below:
Generic order code is based on this format: PXe-330000-400-F, and all PXE order codes start with the six digits like 330045 in this case, indicating 3ph-input 3ph-output and 45kVA
For example a 3 phase in 50Hz, 3 phase out, 45kVA, 400Hz unit = PXE-330045-400-F
PXE-[330000]-[400]-[F]-[INPUT]-[OUTPUT]-[RATING]-[ENCLOSURE]-[CONTROL]
PXE-[330045]-[400]-[F]-[3P400V50]-[3P200V400]-[45KVA]-[IP22]-[RS485]
This would represent:
(PXE-330045-400-F) – PX Electronics Static Frequency Converter, 45kVA
(3P400V50) – 3 phase, 400V, 50Hz input
(3P200V400) – 3 phase, 200V, 400Hz output
(45KVA) – 45kVA rating
(IP22) – IP22 enclosure
(RS485) – RS485 interface option
For a manually controlled standard enclosure version, the part number may look like this:
PXe-130010-400-F-1P230V50-3P200V400-10KVA-IP22-MC
| Model | Input | Output | Capacity | Enclosure | Interface Options |
|---|---|---|---|---|---|
|
PXe-330010-400-F PX Electronics – Static Frequency Converter |
1P230V50 1P = Single Phase |
3P200V400 3P = Three Phase |
10KVA
10kVA capacity |
IP22
Standard IP22 enclosure |
MC
Manual Control Interface |
Available Options:
IP54-rated enclosure
Rugged enclosure option for outdoor, industrial, marine or aviation-related environments where additional protection is required against humidity, condensation, salt spray, water ingress and dust.
Conformal coating
Additional coating of internal PCBs and selected electronic components to improve protection in harsh, humid or corrosive environments.
19-inch rack mount construction
Available on smaller models where the AC power supply needs to be integrated into an existing rack, cabinet, laboratory bench system or production test area.
Remote watchdog monitoring
Typically offered on models above 50kVA. The watchdog system can provide real-time fault notification via SMS, data history logging, remote operation, and automatic restart functionality, subject to application and site requirements.
Cables and terminations
Input and output cable assemblies, connectors, and termination arrangements can be supplied to suit installation, load connection, and site operating requirements.
Mobile base and handling options
Wheeled bases, rubber castors, and swivel tow bars are available when the AC power supply needs to be moved between test areas, production lines, service bays, or operating locations. This option is suitable for facilities where flexible positioning and practical handling are important.
PXe-330000-400-F Series Technical Specification
| Input | |
| Voltage | 400V or 440V ±10%, 3-phase or User Specified |
| Frequency | 50Hz or 60Hz ±6% |
| Power Factor | >0.98 @ full load |
| Susceptibility | EN 61000-4-4, EN 61000-4-5 |
| Output | |
| Voltage | 115/200V or 120/208V, 3-phase or User Specified |
| Voltage Regulation (Steady-State) | ±2% |
| Voltage Regulation (Dynamic) | ±5% @ 0–100% step-load |
| Frequency | 400Hz ±0.1% under all conditions |
| THDv | Better than 3% @ linear load |
| Overall Quality | Better than MIL-STD-704E, DFS400 |
| Waveform | Pure sinusoid |
| Phase Angle Accuracy | Better than 1% |
| Overload Capability | 110% @ 30 mins, 200% @ 5 secs, 300% @ 1 sec |
| Permissible Load Power Factor | 0.6 leading to 0.6 lagging |
| Permissible Phase Unbalance | 70% |
| Secondary 28VDC Output | 70A continuous (optional) |
| Protection | |
| Input Supply | MCB, phase-loss detection, over & under voltage |
| Output | Over-current, over-temperature, phase-loss detection, over & under voltage, short-circuit (any phase) |
| Display Panel | |
| Parameters Displayed | Output voltage (ph-ph + ph-N), output current, power, frequency, power factor |
| Accuracy | Better than Class 0.25 IEC 60688 |
| LED Indicators | Input present, converter healthy, over-temperature, overload, general fault |
| Operating conditions | |
| Ambient Temperature Range | -10°C to 50°C |
| Electrical Noise | EN 55022, IEC1000-4 |
| Cabinet Protection | IP22, IP31, IP54 (optional) |
| Acoustic Noise | <50 dB(A) @ 1m |
| Construction | Mild steel, zinc plated, painted RAL7032 grey & white |
| Castors or Feet | 4kVA model includes rubber feet & lifting handles. Larger models include 80mm castors with front brakes. Anti-vibration mounts or feet optional |
| Cooling | Variable speed turbine, air intake in base, exhaust at rear |
| CE | CE Marked |
| Connectors | |
| Connector Options | Hard-wire terminals, EN60309, MIL-STD, or client specification (400Hz Aircraft Interlock options available) |
| Remote Facilities | |
| Remote Control Option | Remote control panel, electrically isolated from converter, self-powered, On/Off + 5 status indications, operational up to 200m |
| Remote Monitoring | RS485 2-wire/0V, ½ duplex ¼ unit load, MODBUS RTU 16-bit CRC, 4800 or 9600 baud |
| Volt-Free Contacts (C/O) | Input supply present, output on/off, over-temperature, overload, fault. Contacts isolated from converter |
| Connector Type (Remote) | 25-way “D” socket |
| Options | |
| Variable Output Voltage | Front panel adjustment ±15% nominal voltage |
| Variable Output Frequency | Front panel adjustment 400Hz ±10% |
| Special Input Voltages | 220V & 480V (3-phase) |
| Special Output Voltages | 67/115V, 3-phase, 400Hz |
| Military EMC Standard | MIL-STD-461, MIL-STD-704, STANAG 1008 |
| Standards | |
| EN61000-6-4, EN62040-1-1, EN55032, EN55035, EN IEC61000-3-2, EN61000-3-3, GB50054-95, GB50150-1991, GB50150-2006, GB50171-1992, GB/T16935.5-2008, GB/T16935.4-2011 |
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