20 amp EMI Filter
Model No: 20 amp emi filter

20 Amp EMI Filter for AC Power Line Noise Suppression

Rated current: 20A
Rated voltage: up to 250VAC
Single-phase/Three-phase EMI filter design
High attenuation performance across a wide frequency range
Effective suppression of both common-mode and differential-mode noise
Low leakage current for safety-critical applications
Compact chassis mount design
Durable construction for industrial environments
Compliance with UL, CE, and RoHS standards
Wide operating temperature range
Quantity :
Contact Now

Our20 Amp EMI Filter is designed to effectively suppress electromagnetic interference (EMI) in AC power lines, ensuring stable and reliable operation of electronic equipment.
The single-phase/three phase AC line filter (250VAC/380VAC) is widely used in industrial, medical, and automation systems where high-performance noise attenuation is required. With optimized design for both common-mode and differential-mode noise suppression, it helps equipment meet international EMC standards.

Key Features of 20A EMI Filter

  • Rated current: 20A
  • Rated voltage: up to 250VAC
  • Single-phase EMI filter design
  • High attenuation performance across a wide frequency range
  • Effective suppression of both common-mode and differential-mode noise
  • Low leakage current for safety-critical applications
  • Compact chassis mount design
  • Durable construction for industrial environments
  • Compliance with UL, CE, and RoHS standards
  • Wide operating temperature range

Single phase 20 amp EMI filter

single phase 20 amp EMI filter for power supply

Single-phase Technical Specifications

Date sheet
Rated Voltage:115VAC-250VAC
Working Frequency:50/60HZ
Temperature Range:-25℃~85℃
Withstand Test Voltage:1500VDC(line/line)，2150VAC(line/ground)
Fire Resistance：UL 94V-0 
Certificate：cUL,CQC,CE,ROHS

Three phase 20 amp EMI filter

3 phase 20 amp EMI filter for power supply

3 p 20 amp EMI filter Technical Specifications

Date sheet
Rated Voltage:380VAC/440VAC
 
Working Frequency:50/60HZ
Temperature Range:-25℃~85℃
Withstand Test Voltage:2150VAC(line/line)，2750VAC(line/ground)
Fire Resistance：UL 94V-0 
Certificate：CE,ROHS

Applications of 20 Amp EMI Filter
This 20A EMI filter is suitable for a wide range of applications, including:
  • Switching power supplies
  • Industrial automation systems
  • CNC machines and manufacturing equipment
  • Medical devices and healthcare equipment
  • Communication systems
  • Test and measurement instruments
  • Renewable energy systems (solar inverters, etc.)
  • Household and commercial electrical equipment

How the EMI Filter Works

EMI filters use a combination of inductors and capacitors to suppress unwanted high-frequency noise in power lines.
  • Capacitors divert high-frequency interference signals to ground
  • Inductors block noise signals while allowing power frequency current to pass
This ensures clean and stable power delivery to sensitive electronic components, reducing system malfunction and improving EMC compliance.

Why Choose Our 20A EMI Filters

✅ Over 10 years of EMI/EMC manufacturing experience
✅ Strict quality control and full performance testing
✅ Stable supply for global industrial customers
✅ Fast delivery and flexible production
✅ Professional engineering support
✅ Proven performance in demanding environments

Custom EMI Filter Solutions

We provide fully customized EMI filters tailored to your application requirements.
Customization options include:
  • Current rating (1A – 1000A+)
  • Voltage specifications
  • Leakage current control
  • Mounting type (PCB, chassis, DIN rail)
  • Medical-grade or military-grade standards
  • Special size or structure design
👉 Contact our engineers today for a custom EMI filter solution.

FAQ – 20 Amp EMI Filter

Q1: What is a 20A EMI filter used for?

A 20A EMI filter is used to suppress electromagnetic interference in power lines, ensuring stable operation of electronic equipment and compliance with EMC standards.

Q2: How do I choose the right EMI filter?

You should consider:
  • Current rating
  • Voltage level
  • Application type
  • Noise frequency range
  • Leakage current requirements

Q3: What is the difference between common-mode and differential-mode noise?

  • Common-mode noise flows in the same direction on both lines
  • Differential-mode noise flows in opposite directions
A good EMI filter suppresses both types.

Q4: Can you provide custom EMI filters?

Yes, we specialize in custom EMI filter design for industrial, medical, and high-power applications.

Q5: Do your EMI filters meet international standards?

Yes, our filters comply with UL, CE, and RoHS, ensuring global usability.

Call To Action