250VAC 50A emi power line filter rf shielding
Maximize Audio Clarity and Equipment Stability
The HAOZHUO 50A 250VAC AC EMI Filter is a high-capacity line filter designed for demanding applications in high-fidelity audio, industrial power supplies, and sensitive equipment. This product minimizes electromagnetic and radio frequency interference that can compromise sound quality or disrupt industrial system reliability.
Built for High-Frequency EMI Elimination
Cables and internal wiring in audio systems can act as antennas for EMI. This filter efficiently targets high-frequency emissions (10 MHz and above), reducing both conducted and radiated interference. Its low-pass filtering ensures clean AC power delivery to high-sensitivity equipment, improving both performance and EMC compliance.
Optimized for Effective Installation
Performance depends on correct installation. This ac power line filter is designed for bulkhead mounting at the point of power entry (POE), maximizing isolation and minimizing coupling. Input/output wiring should be short and, where possible, shielded—ensuring EMI suppression at its most effective level.
Product Advantages
High Current Support:Rated at 50A and 250VAC, ideal for high-power audio amplifiers, industrial drives, or power-distribution systems with sensitive electronics.
Effective Noise Suppression:Targets EMI noise in the tens of MHz range, making it ideal for applications where high-frequency power distortion affects system reliability.
Audio-Optimized Design:Preserves signal clarity and soundstage in professional audio equipment, mixers, and broadcast transmitters by delivering ultra-clean power.
Installation-Friendly:Bulkhead mountable with versatile terminal connections, this ac emi filter is easy to integrate into cabinets, racks, or wall-mounted enclosures.
Quality Manufacturing Standards:Manufactured under CE and RoHS compliance, this product is built by an experienced rf filters manufacturer with strict industrial standards.
EMI Filter Mounting Tips
The cables and wiring inside a system including the input power cables can act as an antenna for high-frequency noise (10’s of MHz and up) radiating them through the air as well as picking them. This can pose a serious challenge for mitigating radiated as well as high frequency conducted emissions. The higher frequency (10’s pf MHz and up) noise filtered by the filter circuit can couple back on the other side (cables) via the radiated mode. This makes the installation of the filter quite critical. Keeping the following EMI filter installation recommendations in mind can ensure proper EMI filter performance:
- Mount the filter in a place that requires the shortest cable runs.
- When the aim is noise mitigation, mount the filter as close to the EMI source as possible, whether it's a drive, uninterruptible power source, inverter or another component. The farther it is, the more wiring is available for noise to propagate.
- For EMI compliance, install the filter as close to the point of power entry (POE) as possible.
- Bulkhead mount the filter to the chassis at the point of power entry with proper shielding, creating good input-output isolation.
- If bulkhead mounting is not possible, keep wires/cables at the filter input as short as possible and shield the input cables, if necessary.
- For MIL applications, use the MIL grade connector directly installed on the filter box and bulkhead mount it to the chassis.
- Shield filter output cabling if it’s picking noise from inside the system.
| RATED VOLTAGE |
250 VAC |
| RATED CURRENT |
30 A |
| OPERATIONAL FREQUENCY |
50 60 Hz |
| Voltage Drop |
Less than 1V |
| Overload |
140% of rated current for 15 minutes |
| Harmonic Distortion |
Less than 2% @ full rated current |
| Leakage Current |
≤0.2A@380/230VAC and 50Hz |
| Dielectric Withstanding Voltage |
1000VDC (line to line) 1000VDC (line to case) |
| DC Insulation Resistance |
As Per MIL-STD-202 Method 202 |
| Terminal Strength |
As Per MIL-STD-202 Method 211 |
| Temperature Rise |
As Per MIL-F-15733 |
| Insertion Loss |
≥100dB@14K-40GHz As Per MIL-STD-220A, Under Load Condition |
| Climatic Classification |
25/070/21 |
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Before-sale:
1.All inquires will be replied with 8 hours. 7D/24H service,Please feel free to contact us with Email/TM/Skype.
2.Strong technical team and Professional sales.
3.Customized packaging is acceptable.
4.Welcom customers from all the world to visit our factory.
After-sale:
1.All emi filter will be tested and adjusted before shipping.
2.After receiving the products,Any question we will try our best to solve.
About Us
Changzhou Hezi International Trading Co., Ltd. (brand: HAOZHUO) is a professional EMI filter manufacturer founded in 2012. With over 10 years of technical experience, we export 90% of our high-quality EMI and ac filters worldwide. We serve over 100 clients across industries including medical MRI, solar energy, frequency drives, and smart manufacturing systems.
Power your systems with confidence and clarity—choose HAOZHUO’s certified EMI suppression solutions. Contact our team now for a tailored quote or OEM solution.
