3kVA Electronic Frequency Converter
Power: 1kVA, 2kVA, 3kVA (AF400-110003 standard model), 5kVA, single-phase / three-phase optional (series scalable up to 300kVA)
Input: 220V / 230V ±15% single-phase or 380V / 400V / 415V three-phase, 50/60Hz compatible input
Key specs: ±1% voltage regulation & stability, ±0.1% frequency stability, isolated output transformer design, crest factor 1.414±0.1, THD <3% (linear load), efficiency ≥85%
Applications: Aircraft avionics testing, aviation ground support simulation, MRO maintenance workshops, aerospace laboratory power supply, radar and communication equipment testing
Features: IGBT + SPWM technology, pure sine wave output, isolated transformer design, multi-protection system (over-voltage / over-current / over-temperature / short circuit), real-time LED display (V/A/Hz/W/PF), compact industrial metal enclosure
Brand: ACSOON AF400M Series (Xi’an Jerrystar Instrument Co., Ltd., 15+ years aviation power experience, 1-year warranty, OEM/ODM available, designed and manufactured in Xi’an, China)
For higher power aviation ground applications, see AF400M GPU series (10kVA–300kVA)
- Product Description
⚡ AF400-110003 3kVA 400Hz Frequency Converter
⚠️ IMPORTANT: NOT FOR FULL AIRCRAFT POWER SUPPLY
This model is designed for testing & simulation only.
For aircraft ground operation, please refer to:
✔ GPU 30–90kVA series
✔ GPU 90–180kVA airport-grade systems
👉 Designed for real aircraft power supply at airports

The AF400-110003 3kVA 400Hz frequency converter is designed for aviation equipment testing, laboratory simulation, and light maintenance applications.
It provides stable 115V / 200V 400Hz AC output, simulating real aircraft electrical conditions for avionics validation and system testing.
👉 This is an entry-level aviation power solution, not for full aircraft ground operation.
📊 Technical Specification
Model: AF400-110003
Power: 3kVA
Output: 115V / 200V AC
Frequency: 400Hz adjustable
Waveform: Pure sine wave
THD: ≤3%
Efficiency: ≥85%
Cooling: Forced air cooling
| Item | Specification |
|---|---|
| Product | AF400M Static Frequency Converter |
| Output Frequency | 400Hz (adjustable 300–500Hz) |
| Output Voltage | 115V / 120V / 200V / 208V / 380V (customizable) |
| Output Waveform | Pure sine wave |
| Power Range | 1kVA – 60kVA (single-phase), up to 300kVA (three-phase) |
| Input Voltage | 110V–240V single phase / 380V–415V three phase |
| Input Frequency | 50Hz / 60Hz ±15% |
| Voltage Regulation | ±1% |
| THD | <3% (linear load) |
| Efficiency | ≥85% |
| Isolation | Built-in transformer |
| Protection | Over-voltage / Over-current / Overload / Over-temperature |
| Display | LED real-time V / A / Hz / kW / PF |
| Cooling | Forced air cooling system |
| Operating Temperature | -10°C to +45°C |
If you need it,Contact us at Email: acpower@acsoonpower.com

Static Frequency Converter Main Features
✔ Stable 400Hz Aircraft Simulation Output
Ensures accurate reproduction of aircraft electrical conditions for testing accuracy.
✔ Pure Sine Wave Output (≤3% THD)
Protects sensitive avionics and electronic instruments.
✔ Industrial IGBT + SPWM Technology
High efficiency conversion with stable waveform control.
✔ Multi-Frequency Input Compatibility
Supports 50Hz / 60Hz grid input systems.
✔ Built-in Protection System
Over-voltage protection
Over-current protection
Short-circuit protection
Over-temperature shutdown
✅ Why Engineers Choose AF400-110003?
- This unit is widely selected for:
- Equipment calibration
- Avionics bench testing
- Lab simulation systems
- Pre-certification validation
- 👉 It reduces testing errors caused by unstable commercial power sources.


AF400M Static Frequency Converter Application Areas
- Aircraft avionics testing systems
- Aviation electronics laboratories
- Maintenance repair workshops (MRO light test benches)
- Aerospace training systems
- Radar & communication equipment testing
Target Markets
This model is widely used in:
Middle East aviation training centers
Southeast Asia MRO workshops
European aerospace laboratories
Military electronics testing facilities
👉 Especially suitable for hot climate and continuous lab operation environments
🔗 Product Upgrade Path
👉 ① 400Hz Aircraft Frequency Converter Series (AF400M Full Range)
👉 ② Aviation Ground Power Unit 30–60kVA (Light Aircraft Use)
👉 ③ Airport GPU 90kVA Narrow-body Aircraft Power System
👉 ④ Heavy Duty GPU 120–180kVA Wide-body Aircraft Systems
👉 ⑤ Military Aviation Power Systems (High Reliability Grade)
🏭 Why Choose ACSOON Systems
Xi'an Jerrystar Instrument Co., Ltd. provides complete aviation ground power solutions:
400Hz frequency converters
Ground power units (GPU series)
Military-grade aviation power systems
OEM / ODM customization support

ABOUT US
·28,698+ long-term repeat clients globally with stable repeat orders
·19+ years domestic & export manufacturing experience for aviation ground power equipment
·7,000+ sq.m modern production factory
·24/7 customer service:<30 mins quick response + lifetime after-sales support
·60+ independent patented technologies
·Certified as China National High-Tech Enterprise
·Multiple provincial awards, including Shaanxi AAAAA-Level Credibility Enterprise certification
Long Standing
Customer
Over 19 years
experience
Factory Area
7/24H
High-Quality
Efficiency Service
📦 Procurement & Inquiry Support
We support:
✔ Engineering selection assistance
✔ Project-based quotation
✔ Distributor pricing
✔ OEM customization
✔ Fast delivery for standard models
📩 Get Price / Technical Consultation
👉 Request datasheet
👉 Get recommended configuration
👉 Send aircraft or test load requirement
Response within 24 hours by engineering team.
Our Services

Quality Control
- Every unit tested – 2 hours at 80% load. Check for overheating.
- Output verified – Voltage accuracy at five set points. Record kept.
- Isolation test – 2kV between input and output for 1 minute. No breakdown.
- Knob cycle – 500 full rotations on each potentiometer. No scratchy spots.
R&D Results
- Cost reduction – Replaced digital display with analog meters. Cut cost by 20%.
- Transformer – Used a standard toroid instead of custom wound. Still meets specs.
- Enclosure – Painted steel instead of powder coat. Same protection, lower cost.
- User feedback – Hobbyists wanted bigger knobs. Added large rubberized knobs.


Packaging and Transportation
- Shipped from Xi'an – Cardboard box with foam inserts. Fits a courier.
- Included – Power cord (1.5m), output cable with universal socket, printed quick start.
- Manual – One sheet of paper. Double‑sided. No USB.
- Pallet – 8 units per pallet for dealers.
After‑Sales Service
- 1‑year warranty – Return to Xi'an for repair. Parts and labor.
- Spare parts (transformer, fan, meters) kept in Xi'an. Express shipping.
- Email support – We answer within one business day. Simple questions only.


Qualification Certification
- CE – LVD and EMC tested.
- ISO 9001:2015 – Our Xi'an facility.
- RoHS – Compliant.
FAQ
Q1: Is this suitable for aircraft maintenance use?
Yes. It is commonly used in MRO environments where 400Hz aircraft power is required.
Q2: Can it simulate aircraft power conditions accurately?
Yes, it provides stable 115V/120V 400Hz output with low harmonic distortion.
Q3: Does it support both single-phase and three-phase output?
Yes, both configurations are available depending on system size.
Q4: What kind of load can it handle?
It is designed for linear and mixed industrial loads with isolated transformer support.
Q5: Is it suitable for continuous operation?
Yes, it is designed for industrial duty cycles with long-term operation in mind.
Q6:How can I get more details?
A:Click here.Send inquiry get price and specification.
Contact Us
For technical specifications or global solutions for the 3kVA Electronic Frequency Converter: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.
Conclusion
The AF400-110003 is an entry-level aviation power solution designed for testing and simulation environments.
For full aircraft operation, upgrading to a GPU series system (30kVA–180kVA) is recommended for stable ground power support.
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