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3-phase+N EMC filter, FN3256-series

  • 8-160 A
  • 520 V AC
  • Good attenuation performance
  • Low leakage current

Product description

An extremely compact and light weight filter design with a "cubic“ shape, requiring minimum mounting space and thus taking the constructional conditions on the mains input of machinery into account.


Mainly industrial equipment, machinery, machine tools and diverse process auto- mation systems with three-phase and neutral electricity supply. Further, these filters are suitable for power supplies, high-power office equipment and further applications, where efficient interference suppression on three phases and the neutral line is required and where space is critical. Because of the very low leakage current, FN 3256 can even be used for some medical devices.


Articles Rated current at 50 °C Weight
8 A 0,6 kg
16 A 0,7 kg
25 A 1,1 kg
36 A 1,2 kg
64 A 2,3 kg
80 A 3,5 kg
120 A 4,7 kg
160 A 5,7 kg


Mains filter 3-phase+N series FN3256


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Approvals CSA 22.2 N°8 1986, EN60939, IEC60939, UL 1283
Connection Thread Screw terminal
Flamklass UL94-V2
Frequenze DC-60 Hz
High Potential Test Voltage "Hipot" P->E 3000 V DC, 2 s. P->P 2250 V DC, 2 s.
IP Class IP20
Leakage Current Per Phase Max 1 mA
MTBF (Mil-HB-217F) >410000 h @ 50° C, 400 V AC
Operating Voltage Max 520 V AC
Rated current at 50 °C 8 A
Temperature range from -25 °C
Temperature range to 100 °C
Weight 0,6 kg

Measurements and connections

Technical illustrations


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