DATASHEET
3-Phase + Neutral Line Filters FN 356
General Purpose EMC/EMI Line Filter
Three-phase and neutral line filter for general
four-wire filtering tasks
Choice of connection style
Low operating leakage current
Compliant with IEC 60950
Suitable to meet EN 55011/14/22
Performance indicators
Technical specifications
Maximum continuous operating voltage
3x 440/250 VAC
Rated currents
16 to 150 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 (filters with connectors -29, -33, -34)
IP 00 (filters with connectors -06, -24, -28)
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/400 V (Mil-HB-217F)
220,000 hours
Approvals
Features and benefits
FN 356 represents the industry standard filter
solutions for EMC compliance on three-phases and
the neutral conductor, providing high attenuation
of both symmetrical and asymmetrical interference
Choice of connection style is offered for an
application-specific filter selection
Solid touch-safe terminal blocks (-29, -33, -34
versions) offer a generous contacting cross section
and contribute to overall safety (IP 20)
Used as a mains input filter, FN 356 filters increase
the conducted immunity and thus contribute to
system reliability
Design compliance with IEC 60950 provides
additional application flexibility
Typical applications
General purpose four-wire filtering
Mainframe computer systems
High power office equipment
UPS
Installations comprising automation equipment
Typical electrical schematic
