400/800Hz EMI Filter For Anechoic Chamber
400/800Hz EMI Filter For Anechoic Chamber
EMI, EMC, Power Line Filter
Technical Data:
- Rated Voltage: 115/200VAC
- Rated Current: 16-200A
- Rated Frequency: 400/800Hz
- Test Voltage: 1200Vdc/2s
- Climatic Category: 25/085/21
Product Description
The 400/800Hz power line filter is suitable for more demanding high-frequency power environments, particularly in military, aerospace, and precision instrumentation applications.
These environments often face challenges like harmonic distortion, voltage ripple, and conducted EMI due to non-standard frequencies. Our 400/800Hz power line filter effectively mitigates these issues, ensuring stable system operation, signal accuracy, and compliance with strict EMC standards under complex load conditions.
Compared to conventional filters designed for 50/60Hz systems, our 400/800Hz power line filter offers optimized core materials, higher attenuation at operating frequency, and custom-engineered performance curves. Noordin delivers reliable filtering solutions tailored for mission-critical systems where failure is not an option.
Learn more in our latest blog:
Typical Applications
400/800Hz power line filter ensures clean, stable power in anechoic chambers, EMC testing chambers, antenna pattern testing chambers, and radar cross-section (RCS) testing chambers, where high-frequency EMI can compromise measurement accuracy.
In electronic warfare (EW) testing chambers, the 400/800Hz power line filter suppresses conducted noise, supporting precise simulation and analysis in extreme electromagnetic environments.
Shielded rooms require the 400/800Hz power line filter to block external EMI and maintain internal signal integrity, particularly in military and aerospace EMC validation setups.
Installed in an EMC cabinet, the 400/800Hz power line filter eliminates power line disturbances, ensuring proper function of sensitive components and test instruments.
For field operations using shielded tents, the 400/800Hz power line filter delivers stable high-frequency power, protecting mission-critical electronics in mobile or temporary test environments.
Product Features
- Durability and Reliability: Features superior reliability and durability, capable of operating continuously in extreme environments such as high temperatures, intense vibrations, and strong electromagnetic interference.
- Equipped with differential mode coils, each operating independently for stable performance
- Excellent suppression of conducted and RF interference
- Flexible configuration with single or dual-line filters to accommodate single-phase or three-phase circuits
- Supports multi-line parallel connection for current expansion
- Compliance with Standards: Meets CISPR 16/25, IEC 61000-4-3, MIL-STD-461, EN 60939 and other stringent military and international standards.
Technical Data
| Rated Voltage | 115VAC
200VAC |
Single-phase
Three-phase |
| Rated Frequency | 400/800Hz | |
| Rated Current | Refer to product selection table | Ambient temperature of +40℃ |
| Number of lines | 2 or 4 | |
| Insertion Loss,
Per MIL-STD-220C |
＞100dB | Three-stage filter:
14kHz – 40GHz |
| DC Resistance | Refer to product selection table | Each Line |
| Power Dissipation | Refer to product selection table | At Rated Current |
| Test Voltage | 1200Vdc, 2s | Line/Line |
| 1200Vdc, 2s | Line/Ground | |
| Voltage Drop/line | ＜3% | Rated Voltage
115/200V@400/800Hz |
| I Leakage | Refer to product selection table | |
| Discharge Time to Below 34V | 30s | |
| Climatic Category (EN 60068-1) | 25/085/21 | -25℃~+85℃
21 days damp heat test |
- Discharging Resistance Integrated
A discharge resistor is integrated into the filter to safely dissipate stored capacitance after power is turned off.
|
Type |
Rated Current (A) | Rated Voltage (VAC) | Number of lines | I Leakage (A) | DC resistance of each line (mΩ) | Power Dissipation (W) | Dimensional Drawing |
| GMF271C-16 | 16 | 115 | 2 | 1 | ＜50 | ＜20 | Fig 1 |
| GMF271C-32 | 32 | 1 | ＜20 | ＜30 | |||
| GMF271C-63 | 63 | 1 | ＜6.0 | ＜50 | |||
| GMF271C-100 | 100 | 1 | ＜3.5 | ＜70 | Fig 2 | ||
| GMF471C-16 | 16 | 200 | 4 | 1 | ＜50 | ＜30 | Fig 3 |
| GMF471C-32 | 32 | 1 | ＜20 | ＜40 | |||
| GMF471C-63 | 63 | 1 | ＜6.0 | ＜70 | |||
| GMF471C-100 | 100 | 1 | ＜3.5 | ＜100 | |||
| GMF471C-150 | 150 | 1 | ＜3.5 | ＜200 | Fig 4 | ||
| GMF471C-200 | 200 | 1 | ＜3 | ＜200 |
Circuit Diagrams
Outline Drawing (mm)
| Type | A | B | C | D | E | F | G | H |
I
|
J
|
K
|
Dim. |
| GMF271C-16 | 630 | 220 | 170 | 260 | 240 | 330 | 100 | 50 | M33 | M6 | M6 | Fig 1 |
| GMF271C-32 | ||||||||||||
| GMF271C-63 | ||||||||||||
| GMF271C-100 | 800 | 300 | 180 | 340 | 320 | 250 | 90 | 60 | M45 | M8 | M8 | Fig 2 |
| GMF471C-16 | 800 | 220 | 170 | 260 | 240 | 250 | 150 | 50 | M33 | M6 | M6 | Fig 3 |
| GMF471C-32 | ||||||||||||
| GMF471C-63 | M45 | |||||||||||
| GMF471C-100 | 960 | 320 | 180 | 360 | 340 | 330 | 90 | 60 | M45 | M8 | M8 | |
| GMF471C-150 | 1150 | 350 | 250 | 390 | 370 | 250 | 5 | 80 | M60 | M12 | M8 | Fig 4 |
| GMF471C-200 |
Insertion Loss
Frequency of 14kHz-40GHz. Insertion loss over 100dB.
Factory and Production Line
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10+ years experience
With 10+ years experience in manufacturing power line filters, we bring deep industry knowledge to every product we create.
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Proven Quality
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Customized Solutions
We offer tailored services to meet the specific needs of our customers, ensuring that every solution is perfect for your requirements.
Competitive Advantage
We prioritize innovation, offering products with excellent performance at a competitive price, ensuring the best value for your investment.
FAQs
Yes, we can provide customization services according to your requirements.
Yes, we offer sample services for testing. （What is the minimum order quantity for the product? Usually, we support a minimum order quantity of one. ）
Typically, our products are made of stainless steel, nickel-plated carbon steel, aluminum, or other specified materials. Additionally, we can accommodate special material requests.
Generally, we provide specific product dimension information on the product page. However, if you require custom dimensions, please contact us.
Yes, we provide global shipping. With convenient international freight services, we can deliver goods to wherever you need.
Typically, for small batch orders, we ship within 1-3 weeks upon receiving the prepayment.
Feel free to reach out to us by submitting an inquiry form or visiting our “Contact Us” page,and we will respond to you within 24 hours.
We accept various payment methods including T/T, letter of credit, and PayPal.
We offer tiered pricing, with more favorable prices for bulk orders.
Shipping times vary depending on the method chosen, but generally, goods are delivered within 7-30 days after dispatch.
We offer various shipping methods including by sea, air, truck, and railway.
For any product quality issues, we will respond within 24 hours and provide effective solutions.
Yes, we offer a comprehensive after-sales service, including a 2-year warranty on our products. You can rest assured after purchasing from us.
Yes, we have a professional technical team and our own EMC laboratory.
Yes, but we will review your qualifications to determine if you can become our distributor.
Yes, we accept OEM or ODM orders.
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