High-performance EMI Filter For Anechoic Chamber

Power Line Filter For Shielded Cabinets 6-800A for anechoic chambers

High-performance EMI Filter For Anechoic Chamber

EMI, EMC, Power Line Filter

Technical Data:

Rated Voltage: 250(0-500VDC)/440VAC
Rated Current: 6-800A
Rated Frequency: DC/50/60Hz
Test Voltage: 1200Vdc/2s
Climatic Category: 25/085/21

Product Description

High-Performance Anechoic Chamber Filters specifically designed for conducted exceptional EMI suppression, ensuring optimal performance in controlled testing environments. Our product range includes single-phase/DC power line filters and three-phase four-wire power line filters.

In high-precision testing environments, even minor conducted EMI can compromise measurement accuracy and lead to unreliable results. Our filters are engineered to eliminate power line noise that enters test setups via power supply lines, ensuring clean and stable conditions inside the anechoic chamber. This helps test engineers obtain repeatable, interference-free data.

Compared to other solutions, our filters deliver superior insertion loss, cover a broader frequency spectrum, and are housed in compact, shielded enclosures optimized for tight integration. Backed by Noordin’s extensive EMC expertise and flexible customization capabilities, we provide not only reliable filters but also complete technical support for demanding test environments.

Learn more in our latest blog:
“Why Power Line Filters Are Critical for Anechoic Chamber Accuracy“

Typical Applications

Our High-performance EMI Filter ensures clean power delivery in anechoic chambers, where even slight EMI can distort measurement accuracy and compromise testing integrity.

In EMC testing chambers, the High-performance EMI Filter eliminates conducted noise, providing a stable environment for precise electromagnetic compatibility evaluations.

High-performance EMI Filter solutions support antenna pattern testing chambers by preventing interference that can affect radiation pattern and gain measurements.

In radar cross-section (RCS) testing chambers, the High-performance EMI Filter helps maintain ultra-low noise floors essential for accurate radar signature analysis.

For electronic warfare (EW) testing chambers, our High-performance EMI Filter blocks unwanted EMI, ensuring the authenticity and effectiveness of complex signal simulations.

In shielded rooms, the High-performance EMI Filter protects sensitive systems from both incoming and outgoing EMI, enhancing overall shielding effectiveness.

Our High-performance EMI Filter is ideal for EMC cabinets, preventing EMI from entering or escaping the cabinet via power lines, ensuring secure and stable operation of enclosed devices.

In electronic shelters, the High-performance EMI Filter minimizes ground and power line noise, supporting uninterrupted function of mission-critical electronic systems.

Product Features

Ultra-High EMI Suppression: In the range of 14kHz – 40GHz, insertion loss > 100dB.
Compliance with Standards: Meets CISPR 16/25, IEC 61000-4-3, MIL-STD-461, EN 60939 and other stringent military and international standards.
Low leakage and low voltage drop
Easy Integration: Compact and easy to install, fitting various chamber structures.
High common & differential mode insertion loss

Technical Data

Rated Voltage	250VAC/500VDC	Single-phase/DC
Rated Voltage	250/440VAC	Three-phase
Rated Frequency	DC/50/60Hz
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
Test Voltage	1200Vdc, 2s	Line/Ground
Voltage Drop/line	＜1%	Rated Voltage 250/440V@50/60Hz
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/DC)	Number of lines	I_Leakage(A)	DC resistance of each line (mΩ)	Power Dissipation (W)	Dimensional Drawing
GPF271C-16	16	250/500	2	1.2	＜50	＜30	Fig 1
GPF271C-32	32	250/500	2	2.7	＜20	＜40	Fig 1
GPF271C-63	63	250/500	2	4.9	＜6.0	＜70	Fig 2
GPF271C-100J	100	250/500	2	6.5	＜3.5	＜100
GPF271C-150J	150	250/500	2	6.5	＜2.0	＜200
GPF271C-200J	150	250/500	2	6.5	＜2.0	＜250
GDF271C-250J	250	0-500 VDC	2	/	＜3.0	＜250	Fig 3
GDF271C-300J	300				＜1.0	＜250	Fig 4
GDF271C-400J	400				＜1.0	＜250	Fig 5
GDF271C-500J	500				＜1.0	＜300
GDF271C-600J	600				＜1.0	＜500
GDF271C-800J	800				＜1.0	＜500	Fig 6
GPF471C-16	16	250/440VAC	4	1.2	＜50	＜60	Fig 7
GPF471C-32	32	250/440VAC	4	2.7	＜20	＜80
GPF471C-63	63	250/440VAC	4	4.9	＜6.0	＜150
GPF471C-100	100	250/440VAC	4	2.5	＜3.5	＜250
GPF271C-150J*2	150	250/440VAC	2*2	2.5	＜2.0	＜350	Fig 2
GPF271C-200J*2	200	250/440VAC	2*2	2.5	＜2.0	＜400	Fig 2

Circuit Diagrams

Outline Drawing (mm)

Type	A	B	C	D	E	F	G	H	I	J	K	L	Dim.
GPF271C-16	650	160	120	200	180	350	100	50	M24	M6	M6	/	Fig 1
GPF271C-32	650	160	120	200	180	350	100	50	M24	M6	M6	/	Fig 1
GPF271C-63	850	180	140	220	200	275	100	50	M45	M6	M6	/	Fig 2
GPF271C-100J	860	250	180	290	270	280	100	70	M45	M8	M8	/
GPF271C-150J	915	300	210	340	320	307.5	90	60	M45	M8	M8	/
GPF271C-200J	915	300	210	340	320	307.5	90	60	M60	M12	M8	/
GDF271C-250J	1100	450	220	490	470	260	85	75	M60	M12	M8	/	Fig 3
GDF271C-300J	1100	450	220	490	470	260	85	75	2*M45	M12	M12	225	Fig 4
GDF271C-400J	1100	450	220	490	470	260	85	75	2*M60	3*80	M12	225	Fig 5
GDF271C-500J	1100	500	240	540	520	260	85	75	2*M60	3*80	M12	250
GDF271C-600J	1100	500	240	540	520	260	85	75	2*M60	3*80	M12	250
GDF271C-800J	1100	520	300	560	540	260	85	75	2*M80	3*125	M12	260	Fig 6
GPF471C-16	700	250	120	290	270	200	100	50	M33	M6	M6	/	Fig 7
GPF471C-32	700	250	120	290	270	200	100	50	M33	M6	M6	/
GPF471C-63	860	250	140	290	270	280	90	60	M45	M6	M6	/
GPF471C-100	860	250	140	290	270	280	90	60	M45	M8	M8	/
GPF271C-150J*2	915	300	210	340	320	307.5	90	60	M45	M8	M8	/	Fig 2
GPF271C-200J*2	915	300	210	340	320	307.5	90	60	M60	M12	M8	/	Fig 2

Insertion Loss

Frequency of 14kHz-40GHz, insertion loss over 100dB.

Factory and Production Line

Why choose us?

10+ years experience

With 10+ years experience in manufacturing power line filters, we bring deep industry knowledge to every product we create.

Wide Client Base

We are trusted by 1,000+ long-term customers, showcasing our ability to consistently meet and exceed client expectations.

Proven Quality

10,000+ positive feedbacks from satisfied clients attest to the quality and reliability of our products.

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

How to choose the appropriate product model?

Do you provide customization services?

Yes, we can provide customization services according to your requirements.

Are there samples available for viewing or testing?

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. ）

What material is the product made of?

Typically, our products are made of stainless steel, nickel-plated carbon steel, aluminum, or other specified materials. Additionally, we can accommodate special material requests.

What are the specifications and dimensions of the product?

Generally, we provide specific product dimension information on the product page. However, if you require custom dimensions, please contact us.

Do you offer global shipping?

Yes, we provide global shipping. With convenient international freight services, we can deliver goods to wherever you need.

How long does it take to ship after order confirmation?

Typically, for small batch orders, we ship within 1-3 weeks upon receiving the prepayment.

How can I place an order?

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.

Which payment methods do you accept?

We accept various payment methods including T/T, letter of credit, and PayPal.

Are there wholesale prices or discounts available?

We offer tiered pricing, with more favorable prices for bulk orders.

How long does shipping take?

Shipping times vary depending on the method chosen, but generally, goods are delivered within 7-30 days after dispatch.

What shipping methods are available?

We offer various shipping methods including by sea, air, truck, and railway.

How do you handle product quality issues?

For any product quality issues, we will respond within 24 hours and provide effective solutions.

Do you provide after-sales service?

Yes, we offer a comprehensive after-sales service, including a 2-year warranty on our products. You can rest assured after purchasing from us.

Do you have a technical support team?

Yes, we have a professional technical team and our own EMC laboratory.

Do you provide opportunities for distributor or reseller partnerships?

Yes, but we will review your qualifications to determine if you can become our distributor.

Do you accept OEM or ODM orders?

Yes, we accept OEM or ODM orders.

Contact us to get your quote!

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