DATASHEET
3-Phase Filters FN 351
General Purpose EMC Filter
EMC solution for industrial inverters and motor
drives
Approvals
Rated currents from 8 to 280 A
Selectable voltage level of 440 V and 520 V
High differential and common-mode attenuation
Compliant with IEC 60950
FN 351 up to 110 A FN 351H up to 110 A
Features and benefits
Broad range of power ratings for fast and
convenient filter selection
Available as 440 VAC (FN 351) and 520 VAC (FN
351H) versions for network-specific applications
FN 351 filters provide a broadband common and
differential-mode attenuation performance, which
remains available also when high interference levels
are present
Solid, touch-safe filter terminals contribute to overall
equipment safety and make the filters compliant
with IEC 60950
Introduced as one of the very first motor drive EMC
filters in the market, FN 351 has been widely
imitated and has success- fully proven its function
over more than 10 years
Technical specifications
Design corresponding to
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
UL 94 V-2 or better
Flammability corresponding to
High potential test voltage
Typical applications
P –> E 2600 VDC for 2 sec (FN 351)
P –> P 2250 VDC for 2 sec (FN 351H)
P –> E 2750 VDC for 2 sec (FN 351H)
P –> P 1900 VDC for 2 sec (FN 351)
3x 440/250 VAC (FN 351)
Three-phase motor drives
Inverters and converters
Industrial automation equipment
UPS
Maximum continuous operating voltage
3x 520/300 VAC (FN 351H)
135,000 hours
SMPS
MTBF @ 40°C/400V (Mil-HB-217F)
Operating frequency
General purpose three-phase filtering
dc to 60 Hz
Overload capability
4x rated current at switch on,
1.5x rated current for 1 minute, once per hour
IP20
Typical electrical schematic
Protection category
Rated currents
8 to 280 A @ 40 °C
Temperature range (operation and storage)
-25 °C to +85 °C (25/085/21) (FN 351)
-25 °C to +100 °C (25/100/21) (FN 351H)