Maximum continuous operating voltage: 3x 440/250VAC (FN 351)
3x 520/300VAC (FN 351H)
Operating frequency:
dc to 60Hz
Rated currents:
8 to 280 A @ 40°C
High potential test voltage:
P –> E 2600VDC for 2 sec (FN 351)
P –> P 1900VDC for 2 sec (FN 351)
P –> E 2750VDC for 2 sec (FN 351H)
P –> P 2250VDC for 2 sec (FN 351H)
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
-25°C to +85°C (25/085/21) (FN 351)
storage):
-25°C to +100°C (25/100/21) (FN 351H)
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/400V (Mil-HB-217F):
135,000 hours
Typical electrical schematic
Features and benefits
Broad range of power ratings for fast
and convenient filter selection.
Available as 440VAC (FN 351) and
520VAC (FN 351H) versions for network-
specific applications.
FN 351 filters provide a broadband
common and differential-mode
attenuation performance, which
interference levels are present.
remains available also when high
Solid, touch-safe filter terminals
60950.
Typical applications
contribute to overall equipment safety
Three-phase motor drives
Inverters and converters
UPS
Industrial automation equipment
SMPS
and make the filters compliant with IEC
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.
General purpose three-phase filtering
Three-Phase Filters > FN 351
Filter selection table
Filter*
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
FN
351-8-29
351-16-29
351-25-33
351-36-33
351-50-..
351-64-..
351-80-34
351-110-35
351-180-36
351-280-37
351H-8-29
351H-16-29
351H-25-33
351H-36-33
351H-50-..
351H-64-33
351H-80-34
351H-110-35
351H-180-36
351H-280-37
Rated current
@ 40°C (25°C)
[A]
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)
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***
@ 400VAC/50Hz
[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/50Hz
[W]
7
8
8
9
11
15
23
25
49
70
7
8
8
9
11
15
23
25
49
70
Input/Output
connections
-29
-29
-33
-33
-33
-33
-34
-35
-36
-37
-29
-29
-33
-33
-33
-33
-34
-35
-36
-37
Weight
[kg]
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
-34
-34
-34
* To c ompile a c omplete part number, please replac e the -.. with the required I/O c onnec tion style.
** Calc ulated at rated c urrent, 400VAC (FN 351)/480VAC (FN 351H) and c os phi = 0.8. The exac t value depends upon the effic ienc y of the drive, the motor and the entire
applic ation.
*** Maximum leakage under normal operating c onditions (FN 351 at 400V, FN 351H at 480V). Note: if two phases are interrupted, worst c ase leakage c ould reac h 6 times
higher levels.
Typical filter attenuation
8A types
Per CISPR 17; A = 50Ω/50Ω sym; B = 50Ω/50Ω asym; C = 0.1Ω/100Ω sym; D = 100Ω/0.1Ω sym
16A types
25A types
36 and 50A types
64A types
80 and 110A types
180A types
280A types
Three-Phase Filters > FN 351
Mechanical data
8 and 16A types
25 to 64A types
80 and 110A types
180 and 280A types
Dimensions
8A
A
B
C
D
E
F
G
H
I
J
K
L
180
115
60
85
115
100
6.5
1
17
M6
13
17
8A
(-H)
200
150
65
120
115
136
6.5
1
17
M6
19.25
17
16A
200
150
65
120
115
136
6.5
1
17
M6
19.25
17
25A
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
36A
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
50A
(-33)
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
50A
(-34)
200
150
65
120
115
136
6.5
1
39
M6
18.75
17
64A
(-33)
200
150
65
120
115
136
6.5
1
25
M6
19.25
18.4
64A
(-34)
200
150
80
120
115
136
6.5
1
39
M6
18.75
17
80A
400
170
90
350
373
130
15 x 6.5
1
39
M10
40
70
110A
400
170
90
350
373
130
15 x 6.5
1
45
M10
40
70
180A
510
180
130
360
470
156
16 x 9
4
85
M10
25
85
280A
700
260
155
530
660
220
16 x 9
4
110
M10
30
100
All dimensions in mm; 1 inc h = 25.4mm
Toleranc es ac c ording: IS O 2768-m / EN 22768-m
Filter input/output connector cross sections
-29
Solid wire
Flex wire
AWG type wire
Recommended torque
6mm
2
-33
16mm
2
-34
35mm
2
-35
50mm
2
-36
95mm
2
-37
150mm
2
4mm
2
AWG 10
0.6 - 0.8Nm
10mm
2
AWG 6
1.5 - 1.8Nm
25mm
2
AWG 2
4.0 - 4.5Nm
50mm
2
AWG 1/0
7 - 8Nm
95mm
2
AWG 4/0
17 - 20Nm
150mm
2
AWG 6/0
27 - 30Nm
Please visit www.sc haffner.c om to find more details on filter c onnec tors.
Your local partner:
To find your local partner within Schaffner's global network, please go to
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