Power Line Filter For Shielded Room
Power Line Filter For Shielded Room
Shielded Room, EMI Filter, EMC, Single Filter
Technical Data:
- Rated Voltage: 250/440VAC
- Rated Current: 16-2500A
- Rated Frequency: 50/60Hz
- Test Voltage: 1000VDC/2s
- Climatic Category: 25/070/21
Product Description
Power line filter for shielded rooms is expertly engineered to deliver a stable and reliable power supply while minimizing electromagnetic interference (EMI) in sensitive environments. By effectively suppressing noise and disturbances, it ensures optimal performance in shielded rooms and other critical areas where electromagnetic compatibility (EMC) is paramount. This filter safeguards the integrity of sensitive equipment and supports precise testing and seamless operation within shielded facilities.
In shielded environments, residual EMI from power lines can compromise the performance of precision instruments and sensitive test setups. Our power line filter for shielded rooms solves this challenge by delivering high insertion loss across a broad frequency range, ensuring clean power delivery and preventing interference from entering or exiting the shielded area.
Compared to standard filters, our power line filter for shielded rooms offers superior shielding performance, robust construction, and customizable interface options. Backed by years of EMC expertise, Noordin’s filters are trusted by professionals in defense, healthcare, and communications who demand uncompromising reliability in high-stakes environments.
Learn more in our latest blog:
Typical Applications
Power line filter for shielded rooms is essential in anechoic chambers, ensuring clean power input by blocking high-frequency EMI, which supports accurate EMC measurements in noise-free environments.
In a shielded room, a power line filter for shielded rooms maintains electromagnetic isolation by preventing conducted noise from entering or leaving the enclosure, protecting sensitive instruments.
For electronic shelters, power line filter for shielded rooms ensures stable, interference-free power distribution, even in harsh environments with dense electronic systems and variable EMI levels.
Installed in a shielded cabinet, a power line filter for shielded rooms suppresses high-frequency interference on power lines, maintaining the integrity of internal electronics and meeting strict EMC standards.
Product Features
- Ultra-High EMI Suppression: In the range of 14kHz – 40GHz, insertion loss > 100dB.
- Integrated design for ultra-high current, with a maximum current capacity of up to 2500A.
- Certain products feature a stainless-steel metal shell, offering an aesthetically pleasing appearance, high mechanical strength, and excellent corrosion resistance.
- Compliance with EMC Standards: Meets international and industry standards such as CISPR 16/25, IEC 61000-4-3, and MIL-STD-461, ensuring reliable test results and compliance.
Technical Data
| Rated Voltage (Single phase) | 250VAC | Single-phase |
| Rated Voltage (3-phase) | 250/440VAC | Three-phase |
| Rated Current | see characteristics | referred to +40℃ ambient temperature |
| Rated Frequency | 50/60Hz | |
| Shielding Efficiency | >100dB | Single-stage filter:
150kHz – 18GHz Three-stage filter： 14KHz-18GHz |
| Test Voltage | 1000Vdc/2s | line-line |
| 1000Vdc/2s | line-case | |
| Voltage Drop/PhaseΔV | <1% | of VR at 50Hz and IR |
| Climatic Category | 25/070/21 |
- Discharging Resistance Integrated
A discharge resistor is integrated into the filter to safely dissipate stored capacitance after power is turned off.
Standard single-stage filter (Up to 40GHz)
| Type | Rated Current (A) | I Leakage (A) | Dimension | Shielding Efficiency |
| GPF231A-16 | 2×16 | 0.2 | Fig 1 | 100dB, 150K-18GHz
|
| GPF231A-32 | 2×32 | |||
| GPF231A-63 | 2×63 | |||
| GPF231A-100 | 2×100 | 0.5 | ||
| GPF431A-16 | 4×16 | 0.2 | Fig 2 | |
| GPF431A-32 | 4×32 | |||
| GPF431A-63 | 4×63 | |||
| GPF431A-100 | 4×100 | 0.5 | ||
| GPF431A-200 | 4×200 | |||
| GPF431A-250 | 4×250 | 0.5 |
High-performance Three-stage filter (Up to 40GHz)
| Type | Rated Current (A) | I Leakage (A) | Dimension | Shielding Efficiency |
| GPF205C-5 | 2×5 | 0.1 | Fig 6 | |
| GPF231C-16 | 2×16 | 0.5 | Fig 1 | 100dB, 14K-40GHz |
| GPF231C-32 | 2×32 | |||
| GPF231C-50 | 2×50 | |||
| GPF231C-63 | 2×63 | |||
| GPF231C-100 | 2×100 | 1 | ||
| GPF231C-200 | 2×200 | |||
| GPF431C-16 | 4×16 | 0.5 | Fig 2 | |
| GPF431C-32 | 4×32 | |||
| GPF431C-50 | 4×50 | |||
| GPF431C-63 | 4×63 | |||
| GPF431C-100 | 4×100 | 1 | ||
| GPF431C-200 | 4×200 | |||
| GPF431C-250 | 4×250 | |||
| GPF431C-300 | 4×300 | 1 | Fig 3 | |
| GPF431C-400 | 4×400 | Fig 4 | ||
| GPF431C-600 | 4×600 | |||
| GPF431C-800 | 4×800 | Fig 5 | ||
| GPF431C-1000 | 4×1000 |
Circuit Diagrams
Standard single-stage filter
High-performance Three-stage filter
Outline Drawing (mm)
| Type | A | B | C | D | E | F | G | H | I | J | K | Dim. |
| GPF231A-16 | 400 | 160 | 100 | 430 | 415 | 100 | 35 | M24 | M6 | / | / | Fig 1 |
| GPF231A-32 | ||||||||||||
| GPF231A-63 | ||||||||||||
| GPF231A-100 | 450 | 160 | 140 | 480 | 465 | 100 | 50 | M45 | M8 | / | / | |
| GPF205C-6 | 200 | 80 | 40 | / | / | / | 22 | M16 | / | / | / | Fig 6 |
| GPF231C-16 | 550 | 160 | 100 | 580 | 565 | 100 | 35 | M24 | M6 | / | / | Fig 1 |
| GPF231C-32 | ||||||||||||
| GPF231C-50 | 650 | 160 | 120 | 680 | 665 | 100 | 50 | M33 | M6 | / | / | |
| GPF231C-63 | ||||||||||||
| GPF231C-100 | 800 | 180 | 140 | 830 | 815 | 120 | 50 | M45 | M8 | / | / | |
| GPF231C-200 | M12 | / | / | |||||||||
| GPF431A-16 | 400 | 250 | 100 | 430 | 415 | 100 | 50 | M33 | M6 | / | / | Fig 2 |
| GPF431A-32 | ||||||||||||
| GPF431A-63 | ||||||||||||
| GPF431A-100 | 600 | 250 | 140 | 630 | 615 | 100 | 60 | M45 | M8 | / | / | |
| GPF431A-200 | M60 | M12 | ||||||||||
| GPF431C-16 | 650 | 250 | 120 | 680 | 665 | 100 | 50 | M33 | M6 | / | / | |
| GPF431C-32 | ||||||||||||
| GPF431C-50 | ||||||||||||
| GPF431C-63 | ||||||||||||
| GPF431C-100 | 800 | 250 | 140 | 830 | 815 | 100 | 50 | M45 | M8 | / | / | |
| GPF431C-200 | 60 | M60 | M12 | / | / | |||||||
| GPF431C-250 | ||||||||||||
| GPF431C-300 | 930 | 400 | 200 | 960 | 945 | 170 | 60 | M45 | M12 | 4*25 | 100 | Fig 3 |
| GPF431C-400 | 965 | 400 | 200 | 995 | 980 | 170 | 60 | M45 | 3*80 | 6*25 | 100 | Fig 4 |
| GPF431C-600 | 8*25 | |||||||||||
| GPF431C-800 | 965 | 450 | 230 | 995 | 980 | 185 | 60 | M60 | 3*125 | 8*40 | 106 | Fig 5 |
| GPF431C-1000 |
Note: For currents exceeding 250A, the input and output terminals are equipped with copper bus bars.
Insertion Loss
Frequency of 150kHz-40GHz, insertion loss over 100dB.
Single-stage power line filter
Frequency of 14kHz-40GHz, insertion loss over 100dB.
Three-stage power line filter
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
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.
Contact us to get your quote!
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