DATA  SHEET
3-Phase FiltersFN3287
Smallest book-style EMC/RFI Filter for Inverter and Power Drive Systems
29. Jan 2025
28. Apr 2022
3-Phase Filters
  • Standard and high performance EMC solution
  • Footprint space-saving book-style housing
  • Solid safety connector blocks
  • Standard attenuation performance FN3287, high performance versions available with FN3288
  • Versions with low leakage current
  • SCCR 100 kA

Performance indicators

Technical Specifications

Maximum continuous operating voltage

3x530/305 VAC

Nominal operating voltage

480 VAC

Rated currents

10 to 230 A
10 to 230 A @ 50°C

Overload capability

6x rated current for 1 sec, once per hour
1.5x rated current for 1 minute, once per hour

Operating frequency

DC to 60 Hz

High potential test voltage

P -> E 2260 VDC for 2 s
P -> P 2280 VDC for 2 s

Overvoltage category

III acc. IEC 60664-1

Pollution degree

3 acc. IEC 60664-1

Temperature range (operation and storage)

-40°C to +100°C (with current derating >50°C)

Climatic category

40/100/21 acc. to IEC 60068-1

Protection category

IP 20 acc. to IEC 60529

Flammability corresponding to

UL 94 V-0

Vibration and shock

3M4 (operation)
2M2 (transport) acc. to IEC 60721-3-3
IEC 60721-3-2

Design corresponding to

UL 60939-3, IEC 60939-3

SCCR**

100 kA acc. to UL508 - high fault current

Compliance with insulation requirement

> 1MOhm acc. to IEC 60204-1

MTBF (Mil-HB-217F)

>200,000 h @ 50°C/480 V


** SCCR (High Fault Current acc UL508): 100 kA, with overcurrent protection of J-Type current limiting fuses. Fuse rating shall not exceed 150% of filter current rating.

Approvals & Compliances

Features and Benefits

  • FN3287 series of filters provides state-of-the-art EMI attenuation based on an innovative filter topology. They help to ensure compliance with Class C2 or even C1 limits.
  • The slim book-style shape allows a convenient and space-saving installation next to inverters, converters or motor drives.
  • The compact FN3287 filter from 10 to 230A are designed for the most diverse applications worldwide, including machinery and machine tools.
  • Low leakage current filter versions help to fulfill tough requirements (e.g. 0.1 mA) in respect of leakage current limitation.

Typical Applications

  • Three-phase variable speed drives and power drive systems (PDS)
  • Machine tool and machinery equipment
  • General energy conversion devices (inverters, converters)
  • Process automation equipment
  • Three-phase power supplies 
  • Low-leakage current requirements

Typical electrical schematic

Filter selection table

Filter Buy Rated current Typical drive Leakage current*** Power loss Terminal Weight Frame

 

 

@ 50°C (40°C)

Power rating**

@ 530 VAC/50 Hz

@ 25°C

Type

 

 

 

  

[A]

[kW]

[mA]

[W]

  

[kg]

  

Capacitor option *C..

  

 

 

C35

C34

C33

C28

C27

C26

C21

C17

C13

 

 

 

 
Standard performance:                                
FN3287-10-44-C..-R65

10 (11)

6

      

3.7

  

2.2

0.4

 

 

 7.5

-44

0.7

 Q
FN3287-16-44-C..-R65

16 (17)

9

    

4.3

    

2.4

0.4

    

9.5

-44

0.8

 R
FN3287-20-33-C..-R65

20 (22)

12

    

4.9

    

2.5

0.4

    

10.0

-33

0.9

 S
FN3287-25-33-C..-R65

25 (27)

15

    

4.9

     2.5

0.4

     11.4

-33

1.0

 S
FN3287-40-33-C..-R65

40 (44)

24

    

4.9

     2.5

0.4

     22.6

-33

1.5

 T
FN3287-50-53-C..-R65

50 (55)

29

    

4.9

     2.5

0.4

 

 

 28.5

-53

2.1

 U
FN3287-63-53-C..-R65

63 (69)

38

    

4.9

     2.5

0.4

 

 

 36.9

-53

2.2

 U
FN3287-80-34-C..-R65

80 (88)

47

    

5.6

     2.7

0.4

 

 

 32.6

-34

3.4

 F
FN3287-100-35-C..-R65 100 (110) 59     5.6    

2.7

0.4

     33.0 -35 4.2 G
FN3287-125-35-C..-R65 125 (137) 74     5.6    

2.7

0.4

     37.5 -35 4.6 G
FN3287-160-40-C..-R65 160 (175) 94     5.6    

2.7

0.4

     38.4 -40 6.0 H
FN3287-230-40-C..-R65 230 (230) 135     5.9     2.7 0.4     47.6 -40 8.8 V
                                 
High performance:                                
FN3288-10-44-C..-R65

10 (11)

6

  

5.9

      

2.5

0.4

0.1

 

7.1

-44

0.8

 A
FN3288-16-44-C..-R65

16 (17)

9

6.0

        

2.5

0.4

0.1

 

10.5

-44

1.0

 B
FN3288-20-33-C..-R65

20 (22)

12

6.0

        

2.5

0.4

0.1

 

10.7

-33

1.2

 C
FN3288-25-33-C..-R65

25 (27)

15

6.0

        

2.5

0.4

0.1

 

17.8

-33

1.2

 C
FN3288-40-33-C..-R65

40 (44)

24

6.0

       3.5

 

0.4

0.1

 

21.6

-33

1.8

 D
FN3288-50-53-C..-R65

50 (55)

29

6.6

        

2.6

0.4

0.1

 

32.3

-53

2.5

 E
FN3288-63-53-C..-R65

63 (69)

38

6.6

        

2.6

0.4

0.1

 

39.3

-53

2.7

 E
FN3288-80-34-C..-R65

80 (88)

47

7.1

        

2.7

0.4

0.1

 

28.8

-34

4.3

 F
FN3288-100-35-C..-R65

100 (110)

 59

7.1

        

2.7

0.4

0.1

 

36.0

-35

5.1

 G
FN3288-125-35-C..-R65 125 (137) 74 7.1        

2.7

0.4

0.1

 

 42.2 -35 5.0 G
FN3288-160-40-C..-R65 160 (175) 94 7.1        

2.7

0.4

0.1

 

 46.1 -40 6.6 H
FN3288-230-40-C..-R65 230 (230) 135 7.5         2.7 0.4 0.1   47.6 -40 9.3 V
                                 
HP for IT power networks****:                                
FN3288IT-10-44-C..-R60 10 (11) 11   5.9               6.2 -44 1.1 I
FN3288IT-16-44-C..-R60 16 (17) 17   5.9               9.7 -44 1.3 J
FN3288IT-20-33-C..-R60 20 (22) 22   5.9               13.2 -33 1.6 K
FN3288IT-25-33-C..-R60 25 (27) 27   5.9               15.6 -33 1.6 K
FN3288IT-40-33-C..-R60 40 (44) 45   5.9               18.7 -33 2.8 L
FN3288IT-50-53-C..-R60 50 (55) 56   6.5               27.0 -53 2.8 M
FN3288IT-63-53-C..-R60 63 (69) 70   6.5               34.5 -53 2.9 M
FN3288IT-80-34-C..-R60 80 (88) 89   7.0               28.8 -34 4.6 N
FN3288IT-100-35-C..-R60 100 (110) 112   7.0               33.0 -35 5.4 O
FN3288IT-125-35-C..-R60 125 (137) 139   7.0               42.2 -35 5.3 O
FN3288IT-160-40-C..-R60 160 (175) 178   7.0               46.1 -40 6.9 P
FN3288IT-230-40-C..-R60 230 (230) 256   7.0             0.02 47.6 -40 9.3 V

* Replace C.. with corresponding listed C35, C34, C33, C28, C27, C26, C21, C17 or C13.
** Typical power rating at 400 VAC for FN3287 and FN3288 with cos phi=0.85.The exact value depends upon the efficiency of the drive, the motor and the entire application.
*** Standardized calculated leakage current acc. IEC 60939 under normal operating conditions (FN3287, FN3288 and FN3288 IT at 530 VAC).
****These filters may be operated in IT system as long as the operation conditions and possible short circuit/fault (earth connection of one conductor) occurs between the supply (line side) and the filter. The filters are not designed for short circuit/faults occurring between converter and motor.

Filter selection table

Filter Buy

Rated current

Typical drive

 Leakage current*** Power loss Terminal Weight Frame
    @ 50°C (40°C)

Power rating**

 @ 760 VAC/50 Hz @ 25°C Type    

 

  

 

[A]

 

 

[kW]

 

 [mA]

 

[W]

 

  

 

[kg]

 

  
Capacitor option * C..  

 

 

 

 

 

 

C44

C43

C42

C36

C34

 

 

 

C26		 C25

 

 

 

C24		 C17

 

 

 

 

 

 

 

 

 

 

 

 
High voltage versions:                                
FN3288HV-10-44-C..-R65

10 (11)

10

         8.4     1.8  

7.0

-44

1.2

 I
FN3288HV-16-44-C..-R65

16 (17)

13

         8.4   2.5    

10.8

-44

1.5

 J
FN3288HV-20-33-C..-R65

20 (22)

17

       10.9     2.5     12.6

-33

1.8

 K
FN3288HV-25-33-C..-R65

25 (27)

21

       10.9     2.5    

14.6

-33

1.9

 K
FN3288HV-40-33-C..-R65

40 (44)

35

       12.4     2.6    

19.2

-33

2.9

 L
FN3288HV-50-53-C..-R65

50 (55)

43

       12.4     2.6    

29.3

-53

3.3

 M
FN3288HV-63-53-C..-R65

63 (69)

55

       12.4     2.6    

38.1

-53

3.5

 M
FN3288HV-80-34-C..-R65

80 (88)

70

       12.4     2.6    

28.8

-34

4.9

 N
FN3288HV-100-35-C..-R65 100 (110) 100       12.4     2.6     33.0 -35 5.8 O
FN3288HV-125-35-C..-R65 125 (137) 110       12.4     2.6     42.0 -35 5.9 O
FN3288HV-160-40-C..-R65 160 (175) 140       12.4     2.6     46.1 -40 7.2 P
FN3288HV-230-40-C..-R65 230 (230)

200

       12.4     2.6   0.1 47.6 -40 9.3 V
                                 
HV for IT power networks****:                                
FN3288HVIT-10-44-C..-R60

10 (11)

10

     4.6     3.6      

7.0

-44

1.2

 I
FN3288HVIT-16-44-C..-R60

16 (17)

13

   6.8       3.7      

10.8

-44

1.5

 J
FN3288HVIT-20-33-C..-R60

20 (22)

17

   6.8       3.7      

12.6

-33

1.8

 K
FN3288HVIT-25-33-C..-R60

25 (27)

21

   6.8       3.7      

14.6

-33

1.9

 K
FN3288HVIT-40-33-C..-R60

40 (44)

35

   6.8       3.7      

19.2

-33

2.9

 L
FN3288HVIT-50-53-C..-R60

50 (55)

43

   6.8       3.7      

29.3

-53

3.3

 M
FN3288HVIT-63-53-C..-R60

63 (69)

55

   6.8       3.7      

38.1

-53

3.5

 M
FN3288HVIT-80-34-C..-R60

80 (88)

70

   6.8       3.7      

28.8

-34

4.9

 N
FN3288HVIT-100-35-C..-R60

100 (110)

 100   6.8       3.7      

33.0

-35

5.8

 O
FN3288HVIT-125-35-C..-R60 125 (137) 110 5.9         3.7       42.2 -35 5.9 O
FN3288HVIT-160-40-C..-R60 160 (175) 140   6.8       3.7       46.1 -40 7.2 P
FN3288HVIT-230-40-C..-R60 230 (230) 200         12.4 3.7       47.1 -40 9.3 V

* Replace C.. with corresponding listed C44, C43, C42, C36, C34, C26, C25, C24 or C17.
** Typical power rating (400 VAC for FN3287 and FN3288 / 690 VAC for FN3288 HV and FN3288 HVIT) with cos phi=0.85. The exact value depends upon the efficiency of the drive, the motor and the entire application.
*** Standardized calculated leakage current acc. IEC 60939 under normal operating conditions (FN3288 HV and FN3288 HVIT at 760 VAC).
****These filters may be operated in IT system as long as the operation conditions and possible short circuit/fault (earth connection of one conductor) occurs between the supply (line side) and the filter. The filters are not designed for short circuit/faults occurring between converter and motor.

 

Distribution inventory

Up-to-date inventory levels for global distributors is available at

https://products.schaffner.com/stock

Typical filter attenuation – FN3287 standard performance

(FN3287 standard performance version with standard leakage current)

Per CISPR 17: symmetrical 50 Ω/50 Ω -> Differential Mode (DM); asymmetrical 50 Ω/50 Ω -> Common Mode (CM)

FN3287-10-44-C28-R65

FN3287-16-44-C33-R65

FN3287-20-33-C33-R65

FN3287-25-33-C33-R65

FN3287-40-33-C33-R65

FN3287-50-53-C33-R65

FN3287-63-53-C33-R65

FN3287-80-34-C33-R65

FN3287-100-35-C33-R65

FN3287-125-35-C33-R65

FN3287-160-40-C33-R65

FN3287-230-40-C33-R65

Typical filter attenuation – FN3288 high performance

(FN3288 high performance version with standard leakage current)

Per CISPR 17: symmetrical 50 Ω/50 Ω -> Differential Mode (DM); asymmetrical 50 Ω/50 Ω -> Common Mode (CM)

FN3288-10-44-C34-R65

FN3288-16-44-C35-R65

FN3288-20-33-C35-R65

FN3288-25-33-C35-R65

FN3288-40-33-C35-R65

FN3288-50-53-C35-R65

FN3288-63-53-C35-R65

FN3288-80-34-C35-R65

FN3288-100-35-C35-R65

FN3288-125-35-C35-R65

FN3288-160-40-C35-R65

FN3288-230-40-C35-R65

Typical filter attenuation – FN3288 low leakage current version



Per CISPR 17: symmetrical 50 Ω/50 Ω -> Differential Mode (DM); asymmetrical 50 Ω/50 Ω -> Common Mode (CM)

FN3288-10-44-C21-R65

FN3288-16-44-C21-R65

FN3288-20-33-C21-R65

FN3288-25-33-C21-R65

FN3288-40-33-C21-R65

FN3288-50-53-C21-R65

FN3288-63-53-C21-R65

FN3288-80-34-C21-R65

FN3288-100-35-C21-R65

FN3288-125-35-C21-R65

FN3288-160-40-C21-R65

FN3288-230-40-C17-R65

Mechanical data

Frame A to U

Dimensions*

Frame

          A

         B

           C

          D

         E

          F

         G

          H

J+/-2

          K

   L+/-1 M**
A

185

40

120

157

0.8

175

20

 4.5

102

11

 76 M5
B

195

45

140

164

0.8

180

25

 5.4

122

11

 93 M5
C

210

45

145

174

0.8

195

25

 5.4

126

13

 96 M5
D

235

50

168

207

1.0

220

30

 5.4

149

13

 115 M6
E

255

65

180

226

1.0

240

45

 5.4

156

16

 120 M6
F

290

80

205

250

1.2

270

50

 6.5

172

22

 110 M6
G

300

90

210

260

1.5

280

60

 6.5

173

25

 112 M8
H

310

100

225

270

1.5

290

70

 6.5

183

28

 110 M10
I

230

50

132

203

0.8

220

30

 4.5

114

12.5

 88 M5
J

230

55

159

198

0.8

215

35

 5.4

141

13

 112 M5
K

245

55

167

212

0.8

230

35

 5.4

148

13

 118 M5
L

265

60

191

237

1.0

250

40

 5.4

172

13

 135 M6
M 265 70 194 237 1.0 250 50 5.4 170 16 133 M6
N 310 95 220 270 1.2 290 65 6.5 187 22 125 M6
O 320 95 230 280 1.5 300 65 6.5 192 25 127 M8
P 330 100 240 290 1.5 310 70 6.5 198 30 127 M10
Q 180 40 112 153 0.8 170 20 4.5 94 11 68 M5
R 200 45 120 170 0.8 185 25 5.4 102 11 76 M5
S 205 45 132 173 0.8 190 25 5.4 113 13 83 M5
T 215 50 147 185 1.0 200 30 5.4 128 13 95 M6
U 220 65 180 186 1.0 205 45 5.4 156 16 120 M6
V 350 105 240 310 1.5 330 70 6.5 190 30.5 125 M10

*    All dimensions in mm. For dimensions without stated tolerances: ISO 2768-m/EN 22768-m
**  Earth screw torque:M5 2.0-2.2 Nm; M6 3.5-4.0 Nm; M8 8.0-9.0 Nm; M10 15-17 Nm

Filter input/output connector cross sections

-44

-33

-53

-34

-35

-40
Solid wire

0.5-10 mm2

0.5-16 mm2

0.5-16 mm2

6-35 mm2

10-50 mm2

25-95 mm2
Flex wire

0.5-6 mm2

0.5-10 mm2

0.5-16 mm2

6-25 mm2

16-50 mm2

25-95 mm2
Flex wire AWG

AWG 20-8

AWG 22-6

AWG 20-4

AWG 6-2

AWG 6-1/0

AWG 0-4/0
Recommended torque

1.0-1.2 Nm

1.5-1.8 Nm

2.0-2.3 Nm

4.0-4.5 Nm

7.0-8.0 Nm

17-20 Nm

Please visit www.schaffner.com to find more details on filter connectors.

Accessories

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The content of this document has been carefully checked and understood. However, neither Schaffner nor its subsidiaries assume any liability whatsoever for any errors or inaccuracies of this document and the consequences thereof. Published specifica-tionsw are subject to change without notice. Product suitability for any area of application must ultimately be determined by the customer. In all cases, products must never be operated outside their published specifications. Schaffner does not guarantee the availability of all published products. This disclaimer shall be governed by substantive Swiss law and resulting disputes shall be settled by the courts at the place of business of Schaffner Holding AG. Latest publications and a complete disclaimer can be downloa-ded from the Schaffner website. All trademarks recognized.

 

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