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
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
UL 94 V-2 or better
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)
3x 520/300 VAC (FN 351H)
135,000 hours
dc to 60 Hz
4x rated current at switch on,
1.5x rated current for 1 minute, once per hour
IP20
8 to 280 A @ 40 °C
-25 °C to +85 °C (25/085/21) (FN 351)
-25 °C to +100 °C (25/100/21) (FN 351H)
Technical specifications
Design corresponding to
Flammability corresponding to
High potential test voltage
Typical applications
Three-phase motor drives
Inverters and converters
Industrial automation equipment
UPS
SMPS
General purpose three-phase filtering
Maximum continuous operating voltage
MTBF @ 40°C/400V (Mil-HB-217F)
Operating frequency
Overload capability
Protection category
Rated currents
Temperature range (operation and storage)
Typical electrical schematic
EMC/EMI Products
Schaffner Group
Datasheets
2016
Filter selection table
Filter*
Rated current
@ 40 °C (25 °C)
[A]
FN 351-8-29
FN 351-16-29
FN 351-25-33
FN 351-36-33
FN 351-50-..
FN 351-64-..
FN 351-80-34
FN 351-110-35
FN 351-180-36
FN 351-280-37
FN 351H-8-29
FN 351H-16-29
FN 351H-25-33
FN 351H-36-33
FN 351H-50-..
FN 351H-64-33
FN 351H-80-34
FN 351H-110-35
FN 351H-180-36
FN 351H-280-37
Typical drive
power rating**
[kW]
3
5.5
11
15
22
30
37
55
90
132
4
7.5
15
18.5
30
37
45
75
110
160
Leakage current***
@ 400 VAC/50 Hz
[mA]
1.9
1.9
28.0
28.0
29.5
29.5
31.8
31.8
29.6
35.7
2.3
2.3
32.7
32.7
32.7
32.7
38.0
38.0
35.6
42.9
Power loss
@ 25 °C/50 Hz
[W]
7
8
8
9
11
15
23
25
49
70
7
8
8
9
11
15
23
25
49
70
Input/Output
connections
Weight
[kg]
-29
-29
-33
-33
-33
-33
-34
-35
-36
-37
-29
-29
-33
-33
-33
-33
-34
-35
-36
-37
-47
-34
0.8
1.3
1.4
1.5
1.6
1.7
5.6
5.8
13.0
28.0
1.1
1.3
1.4
1.5
1.6
1.7
5.6
5.8
13.0
28.0
8 (9.2)
16 (18.5)
25 (28.9)
36 (41.6)
50 (57.7)
64 (73.9)
80 (92.3)
110 (127)
180 (208)
280 (323)
8 (9.2)
16 (18.5)
25 (28.9)
36 (41.6)
50 (57.7)
64 (73.9)
80 (92.3)
110 (127)
180 (208)
280 (323)
* To compile a complete part number, please replace the -.. with the required I/O connection style.
** Calculated at rated current, 400 VAC (FN 351)/480VAC (FN 351H) and cos phi = 0.8. The exact value depends upon the efficiency of the drive, the motor and the entire
application.
*** Maximum leakage under normal operating conditions (FN 351 at 400 V, FN 351H at 480 V).
Note: if two phases are interrupted, worst case leakage could reach 6 times higher levels.
Typical filter attenuation
Per CISPR 17; A = 50 Ω/50 Ω sym; B = 50Ω/50Ω asym; C = 0.1 Ω/100 Ω sym; D = 100 Ω/0.1 Ω sym
8 A types
16 A types
25 A types
36 and 50 A types
64 A types
80 and 110 A types
180 A types
280 A types
EMC/EMI Products
Schaffner Group
Datasheets
2016
Mechanical data
8 and 16 A types
25 to 64 A types
80 and 110 A types
180 and 280 A types
EMC/EMI Products
Schaffner Group
Datasheets
2016
Dimensions
8A
A
B
C
D
E
F
G
H
I
J
K
L
8A
(-H)
200
150
65
120
115
136
6.5
1
17
M6
19.25
17
16 A
200
150
65
120
115
136
6.5
1
17
M6
19.25
17
25 A
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
36 A
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
50 A
(-33)
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
50 A
(-34)
200
150
65
120
115
136
6.5
1
39
M6
18.75
17
64 A
(-33)
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
64 A
(-34)
200
150
80
120
115
136
6.5
1
39
M6
18.75
17
80 A
400
170
90
350
373
130
15 x 6.5
1
39
M10
40
70
110 A
400
170
90
350
373
130
15 x 6.5
1
45
M10
40
70
180 A
510
180
133
360
470
156
16 x 9
4
83
M10
25
85
280 A
700
260
155
530
660
220
16 x 9
4
110
M10
30
100
180
115
60
85
115
100
6.5
1
17
M6
13
17
All dimensions in mm; 1 inch = 25.4 mm
Tolerances according: ISO 2768-m / EN 22768-m
Filter input/output connector cross sections
-29
-33
-34
-35
-36
-37
Solid wire
Flex wire
AWG type wire
Recommended torque
6 mm
2
4 mm
2
AWG 10
0.6-0.8 Nm
16 mm
2
10 mm
2
AWG 6
1.5-1.8 Nm
35 mm
2
25 mm
2
AWG 2
4.0-4.5 Nm
50 mm
2
50 mm
2
AWG 1/0
7-8 Nm
95 mm
2
95 mm
2
AWG 4/0
17-20 Nm
150 mm
2
150 mm
2
AWG 6/0
27-30 Nm
Please visit www.schaffner.com to find more details on filter connectors.
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