PXe-400F-DC Series Aircraft 400Hz and 28Vdc Avionics Ground Power Units | GPU
PXe-330000-400F-DC Series
PX Electronics 400Hz + 28Vdc Aircraft-Avionics Ground Power Units provide dual-output AC/DC aircraft power from a single solid-state system. Designed for aviation support and maintenance environments, these combination GPUs supply protected and regulated 400Hz and 28Vdc stable power for aircraft servicing, avionics testing, MRO hangars and ground support operations.
Technical Highlights for PXe-330000-400F-DC Series Aircraft Ground Power:
Solid-state conversion
Static converter design with no rotating machinery, rugged high reliability reducing running cost compared with generator-based systems
Three-phase mains input
Operates from a 50Hz or 60Hz three-phase supply for aircraft-standard ground power output
Stable output performance
Maintains voltage and frequency stability under changing aircraft, avionics and component loads
Control and protection
Digital monitoring, system status display, built-in protection against overload, short circuit, over-voltage and over-temperature conditions
Fixed or mobile options
Available in fixed, mobile or semi-mobile configurations, IP ratings to suit hangar, service bay or flight line requirements
PXe-330000-400F-DC Configuration:
Series PXe-330000-400F-DC provide protected 115V 400Hz and 28Vdc aircraft ground power, configured to provide 400Hz AC or AC and DC combination from a single solid-state system. Each unit is designed to supply a regulated 28V DC output alongside 115/200V AC at 400Hz, reducing the need for separate DC supplies and 400Hz ground power equipment.
Systems operate from a three-phase 50Hz or 60Hz mains input and can be specified based on the required aircraft load, output rating, installation format, and control method. Fixed, mobile, and semi-mobile configurations are available depending on the hangar layout, service location, or flight line support requirements.
The static solid-state design uses no rotating machinery, helping reduce mechanical maintenance compared with generator-based systems. High-efficiency conversion, low total harmonic distortion and stable voltage and frequency regulation support reliable operation under changing aircraft load conditions.
Digital control and monitoring provide clear system status and operating information during use. Built-in protection functions respond to abnormal conditions, including overload, short circuits, and overheating.
For aviation maintenance environments, the system can be configured to support aircraft servicing, avionics workshops, MRO hangars, production lines, LRU testing and defence aviation support where combined 28Vdc and 400Hz AC ground power is required.
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; below are examples only.
| Model | Capacity | Current Rating | Input | Output | Dimensions | Weight |
|---|---|---|---|---|---|---|
| PXe-331006-400F-DC
3ph Input |
5kVA 1kVA |
Output 1 – 14.5A per phase @ 208VL-L / 115VL-N
Output 2 – 35A @ 28Vdc |
380V (L-L) ±10% | 50Hz | 3 Phase +N (applies to both o/ps) | Output 1 – 208VL-L 115VL-N 3 Phase +N (5kVA) | 400Hz
Output 2 – 28Vdc (1kVA) | DC |
430x600x700mm | 64kg |
| PXe-333014.5-400F-DC
3ph Input |
10kVA & 4.5kVA DC | Output 1 – 29A per phase @ 115VL-N
Output 2 – 16A @ 270Vdc |
440V (L-L) ±10% | 60Hz | 3 Phase | Output 1 0-208V (L-L) 0-115V (L-N | 3 Phase +N (10kVA) | 400Hz
Output 2 – 270Vdc | DC |
600x530x1650mm | 220kg |
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-330000-400F-DC, and all PXE order codes start with the six digits like 330075 in this case, indicating 3ph-input 3ph-output and 75kVA
For example a 3 phase in 50Hz, 3 phase out, 100kVA, 400Hz unit with 28Vdc = PXE-330100-440F-DC
PXE-330100-400F-DC-[INPUT]-[OUTPUT1]-[OUTPUT2]-[RATING]-[ENCLOSURE]-[CONTROL]
PXE-330100-400F-DC-[3P400V50]-[3P200V400]-[28VDC]-[100KVA]-[IP22]-[RS485]
This would represent:
(PXE-330100-400F-DC) – PX Electronics Ground Power Unit 100kVA
(3P400V50) – 3 phase, 400VL-L, 50Hz input
(3P200V400) – 3 phase, 200VL-L, 400Hz output 1
(28VDC) – 28Vdc output 2
(100KVA) – 100kVA rating
(IP22) – IP22 enclosure
(RS485) – Control
For a manually controlled standard enclosure version, the part number may look like this:
PXe-330100-400F-DC-3P400V50-3P200V400-28VDC-100KVA-IP22-MC
| Model | Input | Output | Capacity | Enclosure | Interface Options |
|---|---|---|---|---|---|
|
PXe-330000-F-C PX Electronics – Ground Power Unit |
3P400V50 3P = Three Phase |
3P200V400 3P = Three Phase 28VDC – Output 2 |
100KVA
100kVA capacity |
IP22
Standard commercial 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-330000-400F-DC Series Technical Specification
| Capacity | |
| Single Phase Output (Other options available on request) | kVA Ratings: 0.5kVA, 1kVA, 3kVA, 5kVA, 10kVA, 15kVA, 20kVA, 30kVA, 50kVA, 60kVA, 75kVA, 100kVA, 150kVA, 200kVA |
| Three Phase Output (Other options available on request) | kVA Ratings: 1kVA, 3kVA, 6kVA, 9kVA, 15kVA, 20kVA, 30kVA, 45kVA, 60kVA, 100kVA, 150kVA, 200kVA, 300kVA, 400kVA, 500kVA |
| Input | |
| Single Phase (Select One Individual Voltage) | 110Vac ±10%, 115Vac ±10%, 120Vac ±10% 127Vac ±10%, 220Vac ±10%, 230Vac ±10%, 400V ±10% |
| Three Phase (Select One Individual Voltage) |
115-127 (L-N) / 200-220V (L-L) ±10%, 220-240 (L-N) / 380-415V (L-L) ±10%, 440V (L-L) ±10%, 480V (L-L) ±10%, 690V (L-L) ±10%, 3 Phase 3 Wire or 3 Phase 4 Wire |
| Frequency | 50Hz/60Hz ±5%, 400Hz (Optional) |
| Power Factor | ≥ 0.8 (standard type) ≥ 0.9 (optional type, 12 or 18 pulse) |
| Output | |
| Single Phase (Select One Individual Voltage) | Fixed: 110V, 115V, 120V, 127V, 220V, 230V, 240V, 400V, 28Vdc Adjustable: 0~150Vac/0~300Vac 28Vdc |
| Three Phase (Select Two Individual Voltages) | Fixed: 115/200V (L-N/L-L), 120/208V (L-N/L-L), 127/220V (L-N/L-L), 220/380V (L-N/L-L), 230/400V (L-N/L-L), 240/415V (L-N/L-L), 254/440V (L-N/L-L), 277/480V (L-N/L-L), 400/690V (L-N/L-L), 3 Phase 3 Wire or 3 Phase 4 Wire Adjustable: 0~260Vac/0~520Vac, 3 Phase 3 Wire or 3 Phase 4 Wire 28Vdc |
| Frequency | Fixed: 50Hz, 60Hz, 100Hz, 200Hz, 45-200Hz (adjustable) Optional: 400Hz, 40Hz~500Hz (adjustable), 16.67Hz, 25Hz, 50Hz, 60Hz, 400-1000Hz |
| Voltage Accuracy | ≤ ±1% FS (Full Scale) |
| Frequency Accuracy | ≤ ±0.1% FS (Full Scale) |
| Total Harmonic Distortion | THD ≤ 3% @ linear load, pure sine wave output |
| Crest Factor (Pk/rms) | 3:1 |
| Overload | 100% for continuous, 101-200% shut down in 200mS |
| Interface | None for standard units, RS232C/RS485/GPIB (Optional) |
| Protection | Over-current, overload, over-voltage, over-temp, short circuit, alarm and indicators |
| Enclosure IP Rating | IP22 (Standard), IP32, IP54 (Optional). Special enclosure options available |
| LED/LCD Display | Digital frequency meter Digital voltage meter Digital current meter Digital power/PF meter |
| Connectors | Hard-wire terminals, EN60309, MIL-STD, or client choice |
| Operating conditions | |
| Temperature | Operation: -10℃~55℃ Ambient: -10℃~45℃ |
| Noise | ≤ 65dB at 1 meter EN 55022, IEC1000-4 |
| Humidity | 10~90% non-condensing |
| Cooling | Variable speed fan, filtered air intake in base, exhaust at rear |
| Altitude | ≤ 1800m |
| Castors or Feet | 0.5-3kVA have rubber feet and lifting handles, 4kVA+ have castors with front brakes. A/Vs or feet optional |
| CE | CE Marked |
| Reliability and Efficiency | |
| Mean Time Between Failure (MTBF) | 50,000Hrs |
| Mean Time To Restore (MTTR) | < 30 min |
| Overall Efficiency | ≥ 85% |
| Standards | |
| GB50054-95, GB 50150-1991, GB 50150-2006, GB 50171-1992, GB/T 16935.5-2008, GB/T16935.4-2011 | |
| EN IEC61000-3-2, EN 61000-3-3, EN55032, EN55035, MIL-STD-1399, MIL-STD 461, MIL-STD704, STANAG 1008 | |
| For more information and support, please feel free to contact us | |
