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Drives

EMC FILTER CNW 174

DC filter for photovoltaics (2 conductors)

DESCRIPTION

Due to the ever more efficient energy conversion in modern inverters, more and more high-frequency energies are being introduced into DC circuits. These are caused by the fast switching processes of modern power semiconductors and can result in premature ageing of the solar modules.

In the frequency range of 150kHz - 30 Mhz on the AC and DC side, a very high level of interference occurs. This fact is not covered for the DC side in the current standardization. The connected long DC cabling and the large-area PV modules represent a special feature that distinguishes inverters from all other electronic devices.

The PV generator and the often very long DC lines act as an antenna and can originally emit line-related interference.
The electromagnetic compatibility of inverters with other devices must be guaranteed.

BENEFITS

  • compact structure
  • Protection of the solar modules against premature ageing due to high-frequency interference
  • Already now compliance with future standards for the DC circuits
  • fast connection
  • low heating
  • optionally with overvoltage protection
  • universal for all inverters

TYPICAL APPLICATIONS

Applications: Suppression of line-related interference in the DC circuit with inverters for feeding in regenerative energies, e.g. photovoltaics, wind power

TECHNICAL SPECIFICATIONS

  • According to: VDE 0565-3 / IEC 950 / UL 1283
  • Test voltage: LL 3000 V, DC 1 s, L-PE 3000 V, DC 1 s
  • Climate category: DIN IEC 60068-1
  • Overload: 1.5 x Irated 1 min / h
  • Nominal voltage: 900 V
  • Nominal current: 10 - 600 A.

Technical specification

EMC FILTER CNW 174

Suitable for this product