PXe-270DC Series 270Vdc Aircraft Power Supplies
PXe-270DC-000
Regulated 270Vdc aircraft power up to 45kW for MRO, avionics, aerospace production and aircraft electrical systems.
The PXe-270DC Series provides dedicated regulated 270Vdc power for aircraft electrical systems requiring a stable high-voltage DC supply.
Available in configurations up to 45kW, the range is intended primarily for aircraft MRO, avionics and subsystem testing, aerospace production, electrical integration and maintenance environments. Systems are selected around the required continuous current, transient load, facility input supply and connection arrangement.
270Vdc is used within advanced military aircraft power architectures and associated support equipment, including F-22 and F-35 programmes. The PXe-270DC Series provides a practical platform for relevant maintenance, production and subsystem applications, with direct aircraft connection assessed separately against the required electrical interface and transient performance.
Where both 270Vdc and 400Hz AC aircraft power are required from the same equipment platform, the PXe-400F-DC Series provides the combined AC/DC alternative.
PXe-270DC Series Aircraft Power Supply Technical Highlights
Dedicated 270Vdc Aircraft Power
Designed specifically for regulated 270Vdc aircraft and avionics systems rather than general-purpose industrial DC applications.
Power Ratings up to 45kW
Configurations are available from lower-power avionics and subsystem supplies through to 30kW and 45kW systems for larger MRO, production and aircraft electrical loads.
Aircraft Load & Transient Assessment
Converter sizing takes account of continuous current and short-duration load demand. Transient response requirements are reviewed where the supply is used with dynamic aircraft electrical equipment.
Fixed, Mobile & Test-System Configurations
Mechanical arrangements can be selected for laboratory benches, aerospace production areas, MRO facilities, fixed hangar installations or mobile support equipment.
Monitoring, Protection & Remote Integration
Voltage, current and operating status monitoring are provided according to the selected controller, with protection and remote-control options available for test, production and maintenance systems.
Product Information
PXe-270DC systems are configured around the available AC input supply and the required regulated 270Vdc output.
The main selection criteria are output power, continuous current, transient demand and the electrical characteristics of the equipment being powered.
Power Range
| Output Power | Approx. Current at 270Vdc | Typical System Use |
|---|---|---|
| 5kW | 18.5A | Avionics and component test |
| 10kW | 37A | Subsystem and production test |
| 20kW | 74A | Larger subsystem and integration loads |
| 30kW | 111A | Aircraft MRO and electrical support |
| 45kW | 167A | Higher-power MRO and aircraft systems |
Intermediate ratings can be configured where required.
Input Configuration
Lower-power systems can be configured around a suitable single-phase facility supply where practical.
For 20kW, 30kW and 45kW systems, three-phase input is normally the more appropriate arrangement due to the required AC input current.
Typical facility supplies include:
230V single-phase, 50Hz or 60Hz
400V three-phase, 50Hz
415V three-phase, 50Hz
480V three-phase, 60Hz
Alternative input voltages can be reviewed.
Output Configuration
The standard output is regulated 270Vdc.
The required converter rating is determined by the maximum continuous load together with any short-duration current demand. Aircraft electrical systems with rapid load changes should be specified using the expected load profile rather than nominal power alone.
Current limiting and protection settings can be configured according to the selected controller and connected equipment.
MRO and Aircraft Interface
For general MRO, production and subsystem applications, output connections can be configured using suitable industrial DC terminals or application-specific cable assemblies.
Where direct aircraft connection is required, the cable, connector, interlock arrangement and electrical interface should be identified at enquiry stage.
Specialist 270Vdc aircraft cabling can be important where high transient currents are involved. Commercial F-22/F-35 support systems use dedicated low-inductance 270Vdc cable arrangements for this reason.
Relationship to Full Aircraft Ground Power
The PXe-270DC Series is positioned primarily for systems up to 45kW.
This covers a substantial range of MRO, avionics, subsystem and aircraft electrical-support requirements. Some direct full-aircraft ground-power applications, including certain F-22/F-35 support duties, can require higher power and particularly demanding transient performance. Those applications should therefore be assessed individually rather than assuming suitability from the 270Vdc nominal voltage alone. Published specialist F-22/F-35 ground-power systems extend to 72kW.
The PXe-270DC Series is available in standard power ratings from 5kW to 45kW. Intermediate ratings can also be configured where required.
| Model | Output Power | Output Voltage | Approx. Output Current |
|---|---|---|---|
| PXe-270DC-005 | 5kW | 270Vdc | 18.5A |
| PXe-270DC-010 | 10kW | 270Vdc | 37A |
| PXe-270DC-020 | 20kW | 270Vdc | 74A |
| PXe-270DC-030 | 30kW | 270Vdc | 111A |
| PXe-270DC-045 | 45kW | 270Vdc | 167A |
Order Code
The complete product code identifies the power rating, AC input supply, 270Vdc output, enclosure and control arrangement.
PXe-270DC-[POWER]-[INPUT]-270VDC-[ENCLOSURE]-[CONTROL]
Example:
PXe-270DC-030-3P400V50-270VDC-IP54-RS485
This represents a 30kW PXe-270DC Series converter with 400V three-phase 50Hz input, regulated 270Vdc output, IP54 enclosure and RS485 communications.
Available Options:
Input Supply
230V single-phase or common 400V, 415V and 480V three-phase supplies, depending on converter rating.
Enclosure
Standard indoor construction or IP54 for MRO, hangar and more demanding environments.
Fixed or Mobile Construction
Floor-standing fixed installation or mobile arrangement according to power rating and application.
Remote Communications
RS485 or Ethernet options according to the selected controller.
Aircraft Connections
Application-specific 270Vdc cable, connector and interlock arrangements can be supplied where direct aircraft connection is required.
Factory Testing
Application-specific FAT and customer or third-party witnessed testing available.
| Specification | PXe-270DC Series |
|---|---|
| Conversion | AC input to regulated DC output |
| Nominal Output Voltage | 270Vdc |
| Power Range | Up to 45kW |
| Maximum Output Current | Approximately 167A at 45kW / 270Vdc |
| Typical Ratings | 5kW, 10kW, 20kW, 30kW and 45kW; intermediate ratings available |
| Typical AC Input | 230V single-phase or 400/415/480V three-phase according to rating |
| Input Frequency | 50Hz or 60Hz according to configuration |
| Output Regulation | Confirmed according to selected model and application |
| Current Limiting | Available according to selected controller |
| Transient Load Capability | Selected according to aircraft or subsystem load profile |
| Monitoring | Output voltage, current and operating status according to selected controller |
| Protection | Overvoltage, overcurrent, overtemperature and short-circuit protection according to configuration |
| Communications | Remote communication options available according to selected controller |
| Mechanical Format | Fixed, mobile or application-specific construction according to rating |
| Output Connections | Industrial terminals, high-current DC cable assemblies or aircraft-interface connections according to application |
| Aircraft Interface | Application-specific cable, connector and interlock arrangements available where required |
| Factory Testing | Functional factory testing as standard; application-specific FAT and witness testing available |
No matching FAQs found.
A 270Vdc aircraft power supply converts an available facility AC supply into a regulated 270V direct-current output for aircraft electrical systems, avionics, subsystem development, production and maintenance applications.
Higher-voltage DC distribution allows substantial electrical power to be transmitted at lower current than traditional 28Vdc systems. This can reduce conductor size and weight and is particularly relevant to more-electric aircraft architectures.
Yes. Published US Air Force and ground-power documentation identifies 270Vdc external power for F-22 and F-35 maintenance, production and test support.
A 270Vdc output alone is not sufficient to claim direct aircraft compatibility.
Full-aircraft F-22 or F-35 ground support requires the correct continuous power, transient response, voltage regulation, protection settings, aircraft cable, connector and interlock arrangement. PX Electronics would therefore review any direct aircraft-support requirement against the applicable aircraft specification before confirming suitability.
The PXe-270DC Series is a dedicated 270Vdc power supply for applications requiring DC power only.
The PXe-400F-DC Series combines aircraft-standard 400Hz AC with a DC output in the same equipment platform and is appropriate where both AC and DC aircraft power are required.
Yes. Lower- and medium-power 270Vdc configurations are particularly suitable for avionics, LRUs, electrical assemblies, subsystem development and production testing where a dedicated regulated DC source is required.
The existing PX platform includes a 270Vdc output rated at 16A, approximately 4.5kW class. Higher-power requirements can be reviewed against the required continuous and transient load.
Yes, subject to application review. Higher-power aircraft systems need to be designed around both continuous load and rapid transient demand rather than simply selecting a nominal current rating.
Mobile and fixed mechanical arrangements can be considered according to output power, aircraft interface and installation requirements.
MIL-STD-704 and aircraft-specific power requirements can be included in the project review where required. Compliance should only be stated for a configuration that has been designed and tested against the applicable requirement.
PX Electronics will require the aircraft or subsystem being powered, required continuous and transient current, applicable aircraft interface specification, cable length, connector, interlock arrangement, input supply and required test or compliance scope.
Yes. Application-specific FAT can include output voltage and current checks, load testing, protection operation, communications and agreed transient test points. The customer or an independent third party can also witness testing.
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