Datasheet

DATASHEET
3-Phase Filters FN 351
General Purpose EMC Filter
EMC solution for industrial inverters and motor
drives
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
Performance indicators
Technical specifications
Maximum continuous operating voltage
3x 440/250 VAC (FN 351)
3x 520/300 VAC (FN 351 H)
Operating frequency
DC to 60 Hz
Rated currents
8 to 280 A @ 40°C
High potential test voltage
P –> E 2600 VDC for 2 sec (FN 351)
P –> P 1900 VDC for 2 sec (FN 351)
P –> E 2750 VDC for 2 sec (FN 351 H)
P –> P 2250 VDC for 2 sec (FN 351 H)
Protection category
IP 20
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 +85°C (25/085/21) (FN 351)
Temperature range (operation and storage)
-25°C to +100°C (25/100/21) (FN 351 H)
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)
135,000 hours
Approvals
UR / CSA: FN 351 up to 110 A; cCSAus: FN 351 H 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 351
H) 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
Typical applications
Three-phase motor drives
Inverters and converters
Industrial automation equipment
UPS
SMPS
General purpose three-phase filtering
Typical electrical schematic