PX Series – Static Frequency Converter AC/ DC Power Supplies

The PX series Static Frequency Converters are used to change the AC power frequency; for example from 50Hz to 400Hz or 60Hz to 50Hz. In reality we convert 50Hz to 60Hz or 60Hz to 50Hz, 50Hz to 400Hz and 60Hz to 400Hz, allowing for conversions to other user defined frequencies like 6.67Hz/25Hz/100Hz.

We offer single phase models from 0.5kVA up to 200kVA capacity and three phase models from 1kVA up to a maximum 2000kVA capacity. Please see our specifications tab or further information on the ranges available.

Our Static Frequency Converters are based on a built-in rectifier to convert incoming AC power into DC and then invert the DC into the desired frequency and voltage through IGBT switching and a built-in isolation transformer – where it is often crucial to have input-output isolation to eliminate ground loops.

The PX series have many advantages, making them ideal for product testing and operation of imported/exported equipment, but also for applications such as the testing of commercial and military aerospace avionics equipment including the operation of 400Hz electronics that are onboard aircraft or a military vessel. The PX series static converters allow testing of max and min ac parameters like drop-out voltage, current and max/min frequency.

Main Features

  • Double conversion
  • PWM and IGBT
  • Low harmonic distortion Low THD
  • Pure sine wave output
  • LED display and tactile key buttons
  • Complete protection: over-temp, over voltage, current and power
  • Fixed and variable frequency selection
  • Single & triple phase available
  • Input to output uses isolated output transformer

For Applications

  • Performance testing of appliances
  • Compliance testing of dropout and regulation
  • Aviation and avionics LRUs
  • Aircraft Systems
  • Industrial Electrical equipment
  • Marine Power Solutions
  • Shoreside Power Solutions
  • Laboratory and test instruments
  • Motors, fans and pumps
Frequency converter

Our Static Frequency Converters are designed specifically with your requirements in mind. For a quote specific to your needs please provide us with the following:

Input: No. of Phases/ Voltage/ Frequency

Output: No. of Phase/ Voltage/ Frequency

Capacity: kVA or output current

Control: Manual or interface


We have a variety of models available, please see below for some popular configurations:

PX-110001F – Input: 1 phase/ 115V/ 50Hz-60Hz – Output: 1 phase/ 115V/ 4000Hz – Capacity: 1kVA

Dimensions: 430 x 380 x 133mm – Weight: 20Kg

PX-310001F – Input: 3 phase/ 440V/ 60Hz – Output: 1 phase/ 115V/ 400Hz – Capacity: 1kVA

Dimensions: 430 x 450 x 178mm – Weight: 24Kg

PX-330003F – Input: 3 phase/ 415V/ 50Hz-60Hz – Output: 3 phase/ 115V/ 400Hz – Capacity: 3kVA

Dimensions: 482 x 550 x 360mm – Weight: 60Kg

PX-330010E – Input: 3 phase/ 440V/ 60Hz – Output: 3 phase/ 230V/ 50Hz – Capacity: 10kVA

Dimensions: 5550 x 1200 x 1000mm – Weight: 120Kg

PX-330020E – Input: 3 phase/ 440V/ 60Hz – Output: 3 phase/ 230V/ 50Hz – Capacity: 20kVA

Dimensions: 5550 x 1200 x 1000mm – Weight: 300Kg

PX-330050E – Input: 3 phase/ 440V/ 60Hz – Output: 3 phase/ 230V/ 50Hz – Capacity: 50kVA

Dimensions: 1000 x 700 x 1550mm – Weight 450Kg

PX-33080 – Input: 3 phase/ 240V/50Hz – Output: 3 phase/ 120V/ 60Hz – Capacity: 80kVA

Dimensions: 1000 x 700 x 1550mm – Weight 600Kg

PX-330100E – Input: 3 phase/ 240V/ 60Hz – Output: 3 phase/ 120V/ 50Hz – Capacity: 100kVA

Dimensions: 1200 x 800 x 1750mm – Weight 750Kg





Frequency converter

PX-310001F Back panel


PX-510001F Frequency Converter



PX-330003F Frequency Converter




PX-330080 Frequency Converter



Technical Specifications


Single Phase output kVA Ratings: 0.5kVA, 1kVA, 3kVA, 5kVA, 10kVA, 15kVA, 20kVA, 30kVA, 50kVA, 60kVA, 75kVA, 100kVA, 150kVA, 200kVA
Three Phase output versions units: 1kVA, 3kVA, 6kVA, 9kVA, 15kVA, 20kVA, 30kVA, 45kVA, 60kVA, 100kVA, 150kVA, 200kVA, 300kVA, 400kVA, 500kVA~2000kVA (Select One kVA)


Single phase (Select One Individual Voltage) 110Vac ±10%, 115Vac ±10%, 120Vac ±10%
127Vac ±10%, 220Vac ±10%, 230Vac ±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%,3 Phase 4
Wire, 440V(L-L) ±10%, 480V(L-L) ±5%, 3Phase 3 Wire
Frequency 50Hz/60Hz ±5%, 400Hz(Optional)
Power factor ≥ 0.8 (standard type)
≥ 0.9 (optional type, 12 pulse)


Single phase
(Select One Individual Voltage)
Fixed: 110V, 115v, 120V, 127V, 220V, 230V, 240V
Adjustable: 0~150Vac/0~300Vac
Three phase
(Select One Individual Voltage)
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), 3 Phase 4 Wire
Adjustable: 0~260V(L-N)/0~520V(L-L), 3 Phase 4 Wire
Frequency Fixed: 50Hz ,60Hz, 100, 200Hz, 45-200Hz (adjustable)
Optional: 400Hz/40Hz~500Hz (adjustable), 16.67Hz, 25Hz, 50Hz, 60HzHz, 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 3:1
Overload 100% for continuous, 101-200% shut down in 200mS
Interface Non for standard units, RS232C/RS485/GPIB(Optional)
Protection over current, over load, over-voltage, over heat, short circuit, alarm and indicators
Enclosure IP IP22 (Standard), IP32, IP54(Optional) Or as per requirement
LED/LCD display . Digital frequency meter
. Digital voltage meter
. Digital current meter
. Digital power/PF meter

Working condition

Temperature . Operation: -10℃~55℃
. Ambient: -10℃~45℃
Noise ≤ 65dB at 1 meter
Humidity 10~90% non-condensing
Altitude ≤ 1800m

Reliability and Efficiency

Mean Time Between Failure(MTBF) 50,000Hrs
Mean Time To Restore(MTTR) < 30 min
Overall efficiency ≥ 85%


GB50054-95, GB 50150-1991, GB 50150-2006, GB 50171-1992, EN55032, EN55035
GB/T 16935.5-2008, GB/T16935.4-2011, EN IEC61000-3-2, EN 6100-3-3
For more information and support, please feel free to contact us
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We are committed to providing products that meet international quality requirements. PX Electronic certifies that all products meet or exceed their published specification, European & USA safety requirements.

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