Compact Three-phase and Neutral Line Filter for High Frequency Attenuation
3-Phase Filters with Neutral FN354
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
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
Technical Specifications
Maximum continuous operating voltage
3x 440/250 VAC
Operating frequency
DC to 60 Hz
Flammability corresponding to
UL 94 V-2 or better
Design corresponding to
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
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)
