EMI / EMC Filters for Power Line Noise Suppression

DOREXS provides high-performance EMI / EMC filters designed to suppress conducted electromagnetic interference on AC and DC power lines. Our power line EMI filters help electronic equipment meet international EMC compliance requirements while improving system stability and reliability.

As an experienced EMI filter manufacturer, DOREXS offers a wide range of standard and custom EMC filtering solutions for industrial automation, medical devices, renewable energy systems, EV charging equipment, and household appliances. Our filters are engineered to reduce both common-mode and differential-mode noise, ensuring reliable operation in demanding electromagnetic environments.
AsanexperiencedEMIfiltermanufacturer,DOREXSoffersawiderangeofstandardandcustomEMCfilteringsolutionsforindustrialautomation,medicaldevices,renewableenergysystems,EVchargingequipment,andhouseholdappliances.Ourfiltersareengineeredtoreducebothcommon-modeanddifferential-modenoise,ensuringreliableoperationindemandingelectromagneticenvironments.
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Industrial EMI Filter
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Model NO.：DOREXS 10A 3 Phase EMI Filter

DOREXS Three Phase EMI Filter 10A for Industrial EMC Applications

Industrial-Grade Three Phase EMI Filter 10AnnReliable Conducted EMI Suppression for Industrial Automation, Servo Drives, Inverters, UPS Systems and Power Equipmentnn✓ Rated Current: 10Ann✓ Rated Voltage: 380VAC / 440VACnn✓ High Insertion Lossnn✓ Compact Metal Housingnn✓ CE & RoHS Certifiednn✓ OEM & ODM Available

single phase emi filter 1a
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Model NO.：DOREXS 1 A Single Phase EMI Filter

Single Phase EMI Filter 1A for Compact Electronic Applications

Reliable 1A Single Phase EMI Filter for Conducted Noise Suppressionn✓ Rated Current: 1 Ampn✓ Single Phase AC Inputn✓ Compact Designn✓ High Insertion Loss Performancen✓ Supports EMC Compliancen✓ Custom Design Available

10A EMI power filter
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Model NO.：DOREXS 10 A single phase EMI filter

10A Single Phase EMI Filter for Industrial Equipment and EMC Compliance

DOREXS 10A single phase EMI filter is designed to suppress conducted electromagnetic interference generated by industrial equipment, switching power supplies, servo systems, and electronic devices. nn✔ Wide Frequency Noise Suppression（150KHz-30MHz)n✔ Compact Mechanical Designn✔ High Reliability Constructionn✔ Low Leakage Current Options(medical type)n✔ Flexible Mounting Optionsn✔ OEM / ODM Supportn✔ International Compliance Support(UL、ISO 9001、CE&Rohs)

20A single phase EMI filter
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Model NO.：DOREXS 20 A single phase EMI filter

20A Single Phase EMI Filter for Industrial EMC & Conducted Noise Suppression

Suitable for industrial automation systems, medical devices, VFD applications, and OEM equipment manufacturing, this single phase power line filter supports custom electrical specifications and application-specific EMC optimization.nn✔ Rated Current: 20An✔ Single Phase AC Inputn✔ High Attenuation Performancen✔ Conducted EMI Suppressionn✔ Compact Metal Housingn✔ OEM / ODM Customizationn✔ Industrial Grade Reliabilityn✔ Global EMC Compliance Support

30A single phase EMI filter
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Model NO.：DOREXS 30A single phase EMI filter

30A Single Phase EMI Filter for Industrial Equipment and EMC Compliance

DOREXS 30A Single Phase EMI Filter is designed to suppress conducted electromagnetic interference (EMI) generated by electronic equipment, switching power supplies, servo systems, and industrial automation machinery. nn✔ Rated Current: 30An✔ Single Phase AC Power Filtern✔ High Attenuation of Conducted EMI Noisen✔ Effective Common Mode and Differential Mode Suppressionn✔ Compact Metal Enclosure Designn✔ Low Leakage Current Options Availablen✔ Easy Chassis Mount Installationn✔ Excellent EMC Compliance Performancen✔ UL、CE & RoHS Compliantn✔ OEM & Custom EMI Filter Solutions

three phase emi filter 20a
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Model NO.：DOREXS 20A three phase EMI filter

Three Phase EMI Filter 20A for Industrial Equipment & EMC Compliance

Industrial Three Phase EMI Filter 20A Manufacturer | OEM & Custom EMC Solutionsnn✔ Rated Current: 20Ann✔ Rated Voltage: 380VAC / 440VAC / Custom Availablenn✔ Frequency: 50/60Hznn✔ Three Phase Power Line EMI Filternn✔ Excellent Common Mode & Differential Mode Attenuationnn✔ CE & RoHS Compliantnn✔ OEM / ODM Customizationnn✔ Fast Engineering Support

three phase emi filter 30a
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Model NO.：DOREXS 30A 3 phase EMI filter

Three Phase EMI Filter 30A | Industrial EMC Power Line Filter

Supporting 380VAC and 440VAC industrial power networks, with custom voltage solutions available up to 800VAC, this filter is suitable for both three phase three wire and three phase four wire electrical systems.nn✔ Rated Current: 30Ann✔ Rated Voltage: 380VAC / 440VACnn✔ Custom Voltage: Up to 800VACnn✔ Three Phase Three Wirenn✔ Three Phase Four Wirenn✔ High Insertion Lossnn✔ Low Leakage Currentnn✔ Compact Industrial Designnn✔ OEM & Custom EMC Solutions

40A single phase EMI filter
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Model NO.：DOREXS 40A single phase EMI filter

40A Single Phase EMI Filter for Industrial EMC Applications

The DOREXS 40A Single Phase EMI Filter is engineered to suppress conducted electromagnetic interference (EMI) in industrial power systems, helping equipment achieve stable operation and EMC compliance. nn✔ Rated Current: 40An✔ Rated Voltage: 115/250VACn✔ Frequency: 50/60Hzn✔ single stage & double stagen✔ Excellent Common Mode & Differential Mode Noise Suppressionn✔ Compact Metal Enclosuren✔ UL、CE & RoHS Compliantn✔ OEM & Custom EMI Filter Available

Types of EMI / EMC Filters

DOREXS offers a comprehensive portfolio of power line EMI filters to meet different electrical and mechanical requirements.

Single Phase Single Pole Filter

It usually consists of an inductor and a capacitor, with a filtering level to filter out noise and interference signals within a specific frequency band. In some single phase EMI filters, two capacitors are used—one placed between line and neutral, and another between line/neutral and ground—to effectively reduce both differential and common mode noise. A common mode choke is often used in these filters to create high impedance and attenuate common mode currents, effectively filtering out interference from various power sources. It is widely used in single-phase powered electronic devices such as household appliances, industrial equipment and medical equipment. Rated current: 1A-200A, rated voltage: 115-250VAC, operating frequency: 50/60Hz. Products can be customized according to customer needs.

single phase emi filters