Main Classification

1. By Application

• Input EMI Filter: Installed at the power input of inverters, motors and control cabinets, filters noise from the power grid and equipment.

• Output EMI Filter: Fitted between drive and motor, suppresses high-frequency noise on motor cables.

2. By Phase

• Single-phase EMI filter: For 1-phase AC 230 V systems

• 3-phase EMI filter: For 3-phase AC 230–500 V industrial drives (matching SEW EF series modules)

Core Working Principle

Key Features

1. Effective suppression of conducted and radiated EMI.

2. Reduces cable radiation and motor bearing current.

3. Improves system stability and extends service life of drives and motors.

4. Helps equipment meet international EMC regulations.

5. Compact structure, easy cabinet mounting.

Technical Parameters (General Industrial Type)

• Rated voltage: 3-phase AC 230 V ~ 500 V, 50/60 Hz

• Rated current: 5 A / 10 A / 20 A (multiple specifications for different power drives)

• Protection class: IP20 (indoor cabinet installation)

• Operating temperature: -25 °C ~ +45 °C

• Attenuation: High attenuation for high-frequency interference

Compatibility & Matching

Typical Applications