DATASHEET
3-Phase Filters FN 258
Book-style EMC/RFI Filter for Inverters and Power Drive Systems
2019
11 Jun 2019
EMC/EMI Products
FN 258: Book-style EMC/RFI Filter for Inverters and Power Drive Systems
  • Industry standard EMC solution for three-phase PDS filtering
  • Slim space-saving book-style housing
  • Solid safety connector blocks or optional wire output connections
  • Excellent attenuation performance
  • HV versions for up to 690 VAC
  • HVIT versions for IT distribution networks
  • P/L versions with low leakage current

Performance indicators

Technical specifications

Maximum continuous operating voltage

3x 520/300 VAC (FN 258, FN 258 L, FN 258 P)
3x 760/440 VAC (FN 258 HV, FN 258 HVIT)

Rated currents

7 to 250 A @50°C (480 V filters)

Operating frequency

DC to 60 Hz

High potential test voltage

P –> E 2650 VDC for 2 sec (FN 258)
P –> P 2100 VDC for 2 sec (FN 258)
P –> E 2000 VAC for 2 sec (FN 258L)
P –> P 2100 VDC for 2 sec (FN 258L)
P –> E 3000 VDC for 2 sec (FN 258P)
P –> P 2100 VDC for 2 sec (FN 258P)
P –> E 3200 VDC for 2 sec (FN 258HV and FN 258HVIT)
P –> P 3270 VDC for 2 sec (FN 258HV and FN 258HVIT)

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 +100°C (25/100/21)

Flammability corresponding to

UL 94 V-2 or better

Design corresponding to

UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939

MTBF @ 50°C/400 V (Mil-HB-217F)

220,000 hours

Approvals

UL/CSA: FN 258 up to 180 A (ex. -180-07)

Features and benefits

  • FN 258 range of filters provides state-of- the-art EMI attenuation based on an innovative multi-stage filter topology. They help to ensure compliance with Class A or even Class B limits
  • The slim book-style shape allows a convenient and space-saving installation next to inverters and motor drives
  • With 480 VAC rating and filter modules from 7 to 250 A, FN 258 are ready for the most diverse applications worldwide
  • FN 258 HV filters up to 130 A are designed for 690 VAC distribution networks
  • FN 258 HVIT filters up to 130 A meet the special requirements for the application in industrial 690 VAC IT distribution networks
  • FN 258 L and FN 258 P filters help to fulfill tough requirements in respect of leakage current limitation and provide an excellent solution to overcome problems with nuisance tripping of sensitive earth leakage detectors

Typical applications

  • Three-phase variable speed drives and power drive systems (PDS)
  • IT power distribution networks (FN 258 HVIT)
  • Applications comprising energy conversion devices (inverters, converters)
  • Process automation equipment
  • Three-phase power supplies and UPS
  • Applications with low-leakage current requirements (FN 258 L and FN 258 P)

Typical electrical schematic

Filter selection table

Filter* 

Rated current 

Typical drive 

Leakage current*** 

Power loss 

Input 

Output

Weight 

@ 50°C (40°C) 

power rating** 

@ 520/760 VAC/50 Hz 

@ 25°C/50 Hz 

connections 

connections 

[A] 

[kW] 

[mA] 

[W] 

[kg]

FN 258-7-.. 

7 (7.7) 

2.0 

-29 

-07 

-29 

1.0

FN 258-16-.. 

16 (17.5) 

7.5 

2.1 

20 

-29 

-07 

-29 

1.4

FN 258-30-.. 

30 (33) 

15 

2.9 

21 

-33 

-07 

-33 

1.7

FN 258-42-.. 

42 (46) 

22 

3.0 

30 

-33 

-07 

-33 

2.5

FN 258-55-.. 

55 (60) 

30 

3.0 

30 

-34 

-07 

-34 

2.9

FN 258-75-34 

75 (82) 

37 

3.0 

24 

-34 

-34 

3.9

FN 258-100-35 

100 (110) 

55 

3.0 

51 

-35 

-35 

5.5

FN 258-130-35 

130 (143) 

75 

3.5 

50 

-35 

-35 

6.9

FN 258-180-.. 

180 (197) 

90 

3.5 

73 

-40 

-07 

-40 

11.0

FN 258-250-.. 

250 (275) 

132 

3.4 

79 

-40 

-07 

-40 

12.0

FN 258 HV-7-29 

7 (7.7) 

5.5 

1.6 

9

-29 

-29 

1.0

FN 258 HV-16-29 

16 (17.5) 

11 

2.3 

20 

-29 

-29 

1.5

FN 258 HV-30-33 

30 (33) 

22 

2.3 

21 

-33 

-33 

1.8

FN 258 HV-42-33 

42 (46) 

30 

2.6 

30 

-33 

-33 

2.6

FN 258 HV-55-34 

55 (60) 

45 

2.6 

30 

-34 

-34 

3.0

FN 258 HV-75-34 

75 (82) 

55 

2.6 

24 

-34 

-34 

4.3

FN 258 HV-100-35 

100 (110) 

90 

2.6 

51 

-35 

-35 

5.6

FN 258 HV-130-35 

130 (143) 

110 

2.9 

50 

-35 

-35 

7.1

FN 258 HVIT-7-29 

7 (7.7) 

5.5 

0.1 

9

-29 

-29 

1.0

FN 258 HVIT-16-29 

16 (17.5) 

11 

0.1 

20 

-29 

-29 

1.5

FN 258 HVIT-30-33 

30 (33) 

22 

0.1 

21 

-33 

-33 

1.8

FN 258 HVIT-42-33 

42 (46) 

30 

0.1 

30 

-33 

-33 

2.6

FN 258 HVIT-55-34 

55 (60) 

45 

2.6  

30 

-34 

-34 

3.0

FN 258 HVIT-75-34 

75 (82) 

55 

2.6  

24 

-34 

-34 

4.3

FN 258 HVIT-100-35 

100 (110) 

90 

2.6  

51 

-35 

-35 

5.6

FN 258 HVIT-130-35 

130 (143) 

110 

2.9  

50 

-35 

-35 

7.1

FN 258 L-7-.. 

7 (7.7) 

0.1  

9

-29 

-07 

-29 

1.0

FN 258 L-16-.. 

16 (17.5) 

7.5 

0.1 

20 

-29 

-07 

-29 

1.4

FN 258 L-30-.. 

30 (33) 

15 

0.1 

21 

-33 

-07 

-33 

1.7

FN 258 L-42-.. 

42 (46) 

22 

0.1 

30 

-33 

-07 

-33 

2.5

FN 258 L-55-.. 

55 (60) 

30 

0.1 

30 

-34 

-07 

-34 

2.9

FN 258 L-75-34 

75 (82) 

37 

0.1 

24 

-34 

-34 

3.9

FN 258 L-100-35 

100 (110) 

55 

0.1 

51 

-35 

-35 

5.5

FN 258 L-130-35 

130 (143) 

75 

0.1 

50 

-35 

-35 

6.9

FN 258 L-180-.. 

180 (197) 

90 

0.1 

73 

-40 

-07 

-40 

11.0

FN 258 L-250-07 

250 (275) 

132 

0.1 

79 

-40 

-07 

12.0

FN 258 P-7-.. 

7 (7.7) 

0.4 

9

-29 

-07 

-29 

1.0

FN 258 P-16-.. 

16 (17.5) 

7.5 

0.4 

20 

-29 

-07 

-29 

1.4

FN 258 P-30-.. 

30 (33) 

15 

0.4 

21 

-33 

-07 

-33 

1.7

FN 258 P-42-.. 

42 (46) 

22 

0.4 

30 

-33 

-07 

-33 

2.5

FN 258 P-55-.. 

55 (60) 

30 

0.4 

30 

-34 

-07 

-34 

2.9

FN 258 P-75-34 

75 (82) 

37 

0.4 

24 

-34 

-34 

3.9

FN 258 P-100-35 

100 (110) 

55 

0.4 

51 

-35 

-35 

5.5

FN 258 P-130-35 

130 (143) 

75 

0.4 

50 

-35 

-35 

6.9

FN 258 P-180-.. 

180 (197) 

90 

0.4 

73 

-40 

-07 

-40 

11.0

FN 258 P-250-07 

250 (275) 

132 

0.4 

79 

-40 

-07 

12.0

Typical filter attenuation

Per CISPR 17; A=50 Ω/50 Ω sym; B=50 Ω/50 Ω asym; C=0.1 Ω/100 Ω sym; D=100 Ω/0.1 Ω sym

7 to 30 A types

42 to 100 A types

130 A types

180 and 250 A types

Mechanical data

7 to 55 A types (-07)

7 to 130 A types (-29, -33, -34, -35)

180 and 250 A types (-07)

180 and 250 A types (-40)

Dimensions

7 A 

16 A 

30 A 

42 A 

55 A 

75 A 

100 A 

130 A 

180 A 

250 A

A

255

305

335

329

329

329

379

439

438

478

B

50

55

60

70

80

80

90

110

110

110

C

126

142

150

185

185

220

220

240

240

240

D

225

275

305

300

300

300

350

400

400

440

E

240

290

320

314

314

314

364

414

413

453

F

25

30

35

45

55

55

65

80

80

80

G

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5 

H111

1.5

1.5

1.5

1.5

344
I

10.9

10.9 

25

25

39

39

45

45

51

51

J

M5

M5 

M5

M6

M6

M6

M10

M10

M10

M10

K

25

27.5 

30

35

40

40

45

55

55

55

L

85

100 

110

130

105

140

130

140

110

110

X* 

AWG 16

AWG 14

AWG 10

AWG 8

AWG 6

50 mm2

70 mm2

Y* 

300 ±10

300 ±10

400 ±10

500 ±10

500 ±10

500 ±10

500 ±10

Z* 

9

9

9

12

12

15

15

Filter input/output connector cross sections

-29 

-33 

-34 

-35 

-40 

Solid wire 

6 mm2

16 mm2

35 mm250 mm295 mm2

Flex wire 

4 mm2

10 mm2

25 mm250 mm295 mm2

AWG type wire 

AWG 10 

AWG 6 

AWG 2 

AWG 1/0 

AWG 4/0

Recommended torque 

0.6-0.8 Nm 

1.5-1.8 Nm 

4.0-4.5 Nm 

7-8 Nm 

17-20 Nm

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