Schaffner extends low leakage EMI filter options

Low leakage current EMI filters from Schaffner in the FN 3287 and FN 3288 series, are designed for power converter applications, such as motor drives and power drive systems.

EMC filters for three-phase applications contribute to compliance with the EMC directive and improve system reliability and stability. The FN 3287 and FN 3288 series have been extended with low leakage current versions. System designers now have the choice of an EMI filter with leakage currents from 12 to 0.1mA.

Schaffner points out that specifying appropriately sized EMC filters at the start of the design-in phase, means that the design of machines and installations can be optimised to meet the required EMC from the outset. Considering EMI requirements at an early stage of system design also saves resources, time and costs.

The latest Schaffner EMI filters are based on a new design architecture which results in what the company describes as “a significant footprint reduction” and also allows the inclusion of the connection terminals within the filter cubical.

Schaffner can now provide compact and flexible solutions from 10 to 160A to accomplish standard- or high demanding attenuation performance requirements as well as low leakage current fulfilment.

The FN 3287 (480V AC) and FN 3288 (480V AC or 690V AC) series are available with 11 current ratings from 10 to 160A and special versions of low leakage currents can enable dedicated solutions with residual current devices (RCDs). The FN 3288 series includes also a suitable version for 480V AC or 690V AC IT network applications.

All models are CE, UL and ENEC -approved and RoHS-compliant.

The Schaffner Group’s portfolio includes EMC filters, power magnetic components, power quality filters and the related services. For the automotive industry, Schaffner develops and manufactures antennae used in keyless entry systems for cars and filters for hybrid and electric vehicles and their charging infrastructure. Schaffner components are deployed in electronic motor controls, in wind power and photovoltaic systems, rail technology applications, machine tools and robots, electrical infrastructure and in power supplies for electronic devices.

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