Single-phase EMC/RFI fi lter
for motor drives
motor drive applications
■ Industrial grade safety terminal blocks
■ Designed to meet EN 55011/14/22
■ Compliant with IEC 60950
1-phase fi lters
FN 350
Approvals■ Compact filter solution for single-phase
Technical specifications
Maximum continuous operating voltage: 1x 250VAC
Operating frequency: dc to 400Hz
Rated currents: 8 to 55A @ 40°C
High potential test voltage: P –> E 2000VAC for 2 sec
P –> N 1100VDC for 2 sec
Protection category: IP20
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 94V-2 or better
Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
MTBF @ 40°C/230V (Mil-HB-217F): 420,000 hours
Features and benefits
■ High component values optimized for com-
mon and differential-mode attenuation in
the lower frequency range makes this filter
■ FN 350 also meets IEC 60950 requirements,
thus providing additional application
flexibility.
ideal for a large variety of single-phase
motor drive applications.
■ Supplied in a relatively small housing
design with safety terminal blocks for fast
and easy installation in primarily industrial
environments.
Typical electrical schematic
Typical applications
■ Single-phase motor drives
■ Automation equipment
■ Power supplies, SMPS
■ Office equipment
■ Testing and measurements equipment
> Components > FN 350
Filter selection table
Filter Rated current Leakage current* Power loss Input/Output Weight
@ 40°C (25°C) @ 230VAC/50Hz @ 25°C/50Hz connections
[A] [mA] [W] [kg]
FN 350-8-29 8 (9.0) 4.9 5.2 -29 0.7
FN 350-12-29 12 (13.5) 4.9 5.7 -29 0.7
FN 350-20-29 20 (22.4) 4.9 6.1 -29 0.7
FN 350-30-33 30 (33.6) 5.4 6.1 -33 0.7
FN 350-55-33 55 (61.5) 11.0 9.9 -33 1.2
* Maximum leakage under normal operating conditions. Note: if the neutral line is interrupted, worst case leakage could reach twice this level.
Typical filter attenuation
Per CISPR 17; A = 50Ω/50Ω sym; B = 50Ω/50Ω asym; C = 0.1Ω/100Ω sym; D = 100Ω/0.1Ω sym
8A types 12A types 20 and 30A types 55A types
> Components > FN 350
Mechanical data
8 to 30A types 55A types
Dimensions
8A 12A 20A 30A 55A
A 99.5 99.5 99.5 99.5 180
B 105 105 105 105 115
C 57 57 57 57.6 60
D 84.4 84.4 84.4 84.4 85
E 51 51 51 51 115
F 95 95 95 95 100
G 6 x 4.4 6 x 4.4 6 x 4.4 6 x 4.4 6.5
H 0.6 0.6 0.6 1.2 1
I 19.5 19.5 19.5 25 25
J M6 M6 M6 M6 M6
K 18 18 18 16 12.9
L 16 16 16 19 18.3
All dimensions in mm; 1 inch = 25.4mm
Tolerances according: ISO 2768 / EN 22768
Filter input/output connector cross sections
-29 -33
Solid wire 6mm² 16mm²
Flex wire 4mm² 10mm²
AWG type wire AWG 10 AWG 6
Recommended torque 0.6 - 0.8Nm 1.5 - 1.8Nm
Please visit www.schaffner.com to find more details on filter connectors.
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