DATASHEET
3-Phase + Neutral Line Filters FN 354
Compact Three-phase and Neutral Line Filter for High Frequency Attenuation
Compact four-wire filter for applications with
limited space
High attenuation performance up to 300 MHz
Equally suitable for star and delta power
networks
Performance indicators
Technical specifications
Maximum continuous operating voltage
3x 440/250 VAC
Operating frequency
DC to 60 Hz
Rated currents
4 to 25 A @ 40°C max.
High potential test voltage
P/N –> E 2000 VAC for 2 sec
P –> P 1900 VDC for 2 sec
P -> N 1100 VDC for 2 sec
Protection category
IP 20 (version with -47 connections)
Overload capability
4x rated current at switch on,
1.5x rated current for 1 minute, once per hour
Temperature range (operation and storage)
-25°C to +100°C (25/100/21)
Flammability corresponding to
UL 94 V-2 or better
Design corresponding to
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
MTBF @ 40°C/230 V (Mil-HB-217F)
500,000 hours
Approvals
Features and benefits
The FN 354 family of filters is intended primarily for
applications that require extremely effective
interference suppression across a broad frequency
spectrum.
Advanced two-stage filter circuits with highly
saturating resistant toroidal inductors, in
conjunction with feedthrough capacitors on each
of the three phases and the neutral line, ensure that
these filters provide very high attenuation in the
upper frequency band.
FN 354 are equally suitable for the operation on star
and delta power networks.
Typical applications
Applications requiring high-frequency attenuation
Power supplies
Medical equipment
Office and data processing equipment
Typical electrical schematic
