EMI Filter

Electromagnetic interference (EMI) is a disturbance that affects an electrical circuit and electric devices. The EMI can cause a malfunction of the device or the circuit. EMI Filters can protect your devices from EMI and guarantee a proper functionality. EMI filters are used for digital processing systems, telecommunication systems and for power converter applications. The Sourcetronic Three-phase EMI Filters are based on a state-of-the-art filter concept with a minimized volume to ensure an easy installation. The filter modules can be used with AC-Drives ranging from 0.75KW up to 630KW with currents from 5A up to 1200A and work properly in area temperatures from -25°C up to 85°C.
The functionality of a frequency inverter is achieved by pulsing a DC voltage. There is a basic wave and many upper waves. They can unintentionally unite in different devices, systems and systems in various ways.

In addition, a frequency converter generates high frequency electromagnetic waves. These can spread in the room and unintentionally interfere with the wavelength in equipment and lines and lead to a malfunction. Energized interference voltages from the mains are a problem for many frequency converters. However, electrical and electronic apparatus and systems in the vicinity of a frequency converter are also impaired by its emitted interference. In both cases, an EMI line filter is provided at the power supply input. Such a filter suppresses the energetic interference voltages from the network. First, the mains choke, which is integrated in the EMI line filter, reduces the low-frequency noise. Other components, which are integrated in the EMI line filter, filter out the high-frequency interference.

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  1. EMI Filter IP20
    EMI-Filter 0,75 - 2,2kW STFI-0007-TB
    £77.16
    Excl. 0% VAT
    £77.16
    Incl. 0% VAT
    • IP20 protection
    • Power: 0,75 - 2,2 kW
    • Current: 7 A
    • Voltage: 400 V
    • Category: C2
    • Reduces Voltagepeaks
    • Attenuates electromagnetic radiation
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  2. EMI-Filter 4 - 5,5kW STFI-0016-TB
    EMI-Filter 4 - 5,5kW STFI-0016-TB
    £99.08
    Excl. 0% VAT
    £99.08
    Incl. 0% VAT
    • IP20 protection
    • Power: 4 - 5,5kW
    • Current: 16 A
    • Voltage: 400 V
    • Category: C2
    • Reduces Voltagepeaks
    • Attenuates electromagnetic radiation
    Learn More
  3. EMI Input Filter 2.2 - 4 KW
    EMI Input Filter STI 2.2 - 4 kW 690V
    £158.70
    Excl. 0% VAT
    £158.70
    Incl. 0% VAT
    • Power: 2.2 - 4 kW
    • Current: 10 A
    • Voltage: 690V 3-phase
    • Category: C2
    • Reduces Voltagepeaks
    • Attenuates electromagnetic radiation
    Learn More
  4. EMI Input Filter 5.5 - 7.5KW
    EMI Input Filter STI 5.5 - 7.5 kW 690V
    £213.06
    Excl. 0% VAT
    £213.06
    Incl. 0% VAT
    • Power: 5.5 - 7.5 kW
    • Current: 20 A
    • Voltage: 690V 3-phase
    • Category: C2
    • Reduces Voltagepeaks
    • Attenuates electromagnetic radiation
    Learn More
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