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Power Line 3 Phase Passive Solar Inverter Emi Filter for PV Inverters 440 480VAC 5A

Power Line 3 Phase Passive Solar Inverter Emi Filter for PV Inverters 440 480VAC 5A

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    passive emi filter


    3 Phase Inverter Emi Filter


    EMC EMI Filter for PV Inverters

  • Type
    EMI Filter
  • Transfer Function
    Low Pass
  • Nominal Center Frequency
  • 3dB Bandwidth
  • Insertion Loss
  • Input Impedance
  • Stopband Attenuation
  • Rated Voltage
  • Rated Current
  • Operating Frequency
  • Application
  • Port
  • Place of Origin
  • Brand Name
  • Certification
    CE RoHS
  • Model Number
  • Minimum Order Quantity
    >=1 Pieces
  • Price
  • Packaging Details
    10 pcs in one carton the gross weight is about 10Kg
  • Supply Ability
    100 Piece/Pieces per Week

Power Line 3 Phase Passive Solar Inverter Emi Filter for PV Inverters 440 480VAC 5A

RF Filter Passive Filter Power Three Phase Output Inverter Filter 440/480VAC 5A

How to measure filter effectiveness

(1) Insertion loss

The noise reduction effect of a filter is represented by insertion loss. As shown in Fig. 3, a filter was inserted into a circuit connecting a 50 ohms signal source with a load, and then the change in voltage on the load side (B to C) was measured. This is normally expressed in dB.

(2) dB

dB (decibel) is a unit used to express a ratio. As shown in Table 2, the ability to reduce noise to 1/10th is expressed as 20dB, while the ability to reduce noise to 1/100th is expressed as 40dB. Each time noise drops to 1/10th, the dB increases by 20 (for insertion loss).
Using dB is very convenient as it can express a large ratio through addition. The result of measuring noise is also normally expressed in dB. For example, 40dBµV represents a voltage where 1µV is 0 dB, and so it means 100µV.

(3) Numbers to keep in mind

When noise doubles, the dB changes by 6dB. When noise increases tenfold, the dB changes by 20dB. These two numbers are used very often, so it can be useful to keep them in mind.
Note however that these numbers are used when representing voltage. For power, a tenfold increase results in a change of 10dB. This is because power has a relationship proportional to voltage squared (P=V2/R).

(4) S-parameter substitution

When a filter can be regarded as a linear circuit, insertion loss can be substituted by the absolute value of the S-parameter transmission coefficient (S21 or S12) measured on a 50 ohms system. This is because a 50 ohms measurement system is connected before and after the filter, for both measurements. Whenever possible, we use the value measured with the S-parameter as the insertion loss.


Parameter Value
Rated Voltage, RMS 110...250V
Rated Current, RMS 3A
Transient Signal Attenuation (Typical)
Differential Mode 24dB
Common Mode 20dB
Leakage Current
Standard models <3.5mA
Medical version <0.5mA
Power Indication LED
Dimensions (WxDxH) 80mmx47mmx127mm
Available in a range of input / output configurations



Company Information
  • We are a professional and famous EMI filter manufacturer.
  • Our technical team has more than 10 years’ experience in designing EMI filter. We know UL VDE CSA CE CQC etc safety standard very well.
  • Our technical service team learn many kinds of test standard such as industrial application (IEC61800-3 for frequency inverter drive EN12015 for elevator EN55011 for ISM device etc) and military application (GJB151A GJB152A etc).We can solve EMI problem quickly effectively and low-costly.
  • Our test equipment: LCR digital bridge/voltage proof tester/insulation resistance tester/spectrum analyzer/inductor tester/standard signal source/shield room/interference intensity tester etc
  • Our product: EMI filter for general purpose/EMI filter for frequency inverter/EMI filter for shielding facility/EMI filter for military application.
  • Our advantage: high quality/high cost-effective/short lead time
  • Our service: all products have two years guarantee
  • Our main customers: frequency inverter drive and servo drive system/MRI shielding system/solar inverter system/rail transit system etc


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