DATASHEET
Sinusfilter FN5420
LC Sine Wave Filter for Motor Drives
2021
08 Nov 2021
Ausgangsfilter
FN5420: LC Sine Wave Filter for Motor Drives
  • Prevention of overvoltage on the motor
  • Reduction of motor noise
  • Reduction of motor losses
  • Increase motor service life
  • Possible to apply long motor cables
Technical specifications

Nominal operating voltage

3x480 VAC

Rated operating voltage

3x530 VAC

Motor frequency

0...60 Hz (up to 200Hz with derating, see user manual)

Schaltfrequenz fPWM

Min. 2 or 4kHz, max. 16kHz, see filter selection table

Impedance (uk)

6% @ 400 V, 50 Hz and rated current

Residual ripple voltage

<5%

Motor cable length

Up to 1'000 m or 2'000 m (see user manual)

Overvoltage category

III acc. IEC 60664-1

Pollution degree

3

High potential test voltage

P –> E 2480 VAC, 1 s

Protection category

IP00 (E0XXT versions)
IP20 (E2FXT option, up to 110A version)

Overload capability

1.5× rated current for 1 minute, once per hour

Ambient temperature range

-40°C to +45°C fully operation
+45°C to +100°C (up to 18A) or +70°C (26A and above) derated operation*
-40°C to +70°C transport and storage

Design corresponding to

Filter: UL 61800-5-1, EN 61800-5-1
Chokes: EN 61558-2-20 or EN 60076-6

Climatic class

40/070/21

MTBF @ 40°C/400 V (Mil-HB-217F)

>500,000 hours

Flammability corresponding to

UL-94V-0

Approvals & Compliances

Depending on filter configuration. cULus for IP20 pending. For use with AC or DC drives (power conversion equipment) only

Features and benefits

  • Converts the rectangular PWM output voltage of motor drives into a smooth sine wave with low residual ripple
  • Elimination of premature motor damage caused by high dv/dt, overvoltages, cable ringing and motor overheating
  • Improves bearing life time because of bearing currents caused by circulating currents
  • Complies with IEC 60034-17* requirements for general purpose motors
  • Optional with IP20 protective cover

Typical applications

  • HVAC applications
  • Pumps
  • Conveyors
  • Compressors
  • Elevators
  • Cranes
  • Medium voltage applications, deployed in front of the step-up transformer
  • Retrofit installations with motor drives
  • Motor drive with long motor cable
  • Motor drive with multiple motors in parallel

Typical electrical schematic

Filter selection table FN 5420 IP00

Filter Rated current @ 45°C/ 50Hz Typical motor drive power rating @ 400 V* Typical motor drive power rating @ 480 V** Nominal inductance Nominal capacitance*** Min. switching frequency Typical power loss**** Input/Output terminals Weight
  [A] [kW] [kW] [mH] [μF] [kHz] [W]   [kg]
FN5420-2.3-88-E0XXT 2.3 0.75 0.90 19.2 3x0.47 4 41 88 1.20
FN5420-3.1-88-E0XXT 3.1 1.1 1.3 14.2 3x0.68 4 45 88 1.55
FN5420-5.9-88-E0XXT 5.9 2.2 2.6 7.48 3x1.5 4 76 88 2.2
FN5420-10-88-E0XXT 10.2 4.0 4.8 4.32 3x2.2 4 91 88 5.1
FN5420-13-89-E0XXT 13.2 5.5 6.6 3.34 3x3.0 4 123 89 5.5
FN5420-18-89-E0XXT 18 7.5 9.0 2.45 3x3.7 4 150 89 6.6
FN5420-26-92-E0XXT 26 11 13 1.70 3x5 4 127 92 9.5
FN5420-32-92-E0XXT 32 15 18 1.38 3x6 4 196 92 11.9
FN5420-38-92-E0XXT 38 19 22 1.16 3x8 4 229 92 12.1
FN5420-45-92-E0XXT 45 22 26 0.980 3x8 4 272 92 13.7
FN5420-60-92-E0XXT 60 30 36 0.735 3x12 4 283 92 18.5
FN5420-75-99-E0XXT 75 37 44 0.588 3x15 4 154 99 21.5
FN5420-90-99-E0XXT 90 45 54 0.490 3x20 4 239 99 25.0
FN5420-110-99-E0XXT 110 55 66 0.401 3x20 4 283 99 28.5
FN5420-145-99-E0XXT 145 75 90 0.304 3x100 2 472 99 56
FN5420-180-99-E0XXT 180 90 108 0.245 3x150 2 658 99 58
FN5420-200-99-E0XXT 200 110 132 0.221 3x150 2 707 99 60
FN5420-250-99-E0XXT 250 132 158 0.176 3x200 2 882 99 76
FN5420-300-99-E0XXT 302 160 192 0.146 3x250 2 936 99 98
FN5420-400-99-E0XXT 400 200 240 0.110 3x300 2 1023 99 128
FN5420-480-99-E0XXT 477 250 300 0.092 3x350 2 1318 99 155
FN5420-630-99-E0XXT 630 315 378 0.070 3x500 2 1459 99 185
FN5420-710-99-E0XXT 710 355 426 0.062 3x550 2 1922 99 220
FN5420-800-99-E0XXT 800 400 480 0.055 3x600 2 2062 99 262
FN5420-1000-99-E0XXT 1000 500 600 0.044 3x750 2 2315 99 366

**** General purpose four-pole (1500 r/min) AC induction motor rated 400 V/50 Hz.
**** General purpose four-pole (1500 r/min) AC induction motor rated 480 V/50 Hz.
**** Total capacitance value. Capacitor connection in delta (Δ)  for all versions.
**** See user and installation manual for calculation of the filter power loss at other operation point. Exact value of the complete system depends on the motor cable length and type, switching frequency and further stray parameters of the system.

Required drive settings

Ensure the drive’s switching frequency is set to the required minimum switching frequency (see filter selection table). The mode of operation, for both motor- and regenerative load, must be “scalar” (V/Hz) with a fixed switching frequency. Check the drives manufacturer manual whether special settings are necessary. In any doubt contact the drives manufacturer. CAUTION: If the motor drives settings are not correct the filter may be damaged.

Filter selection table FN 5420 IP20

Filter Rated current @ 45°C/ 50Hz Typical motor drive power rating @ 400 V* Typical motor drive power rating @ 480 V** Nominal inductance Nominal capacitance*** Min. switching frequency Typical power loss**** Input/Output terminals Weight
  [A] [kW] [kW] [mH] [μF] [kHz] [W]
[kg]
FN5420-2.3-44-E2XXT 2.3 0.75 0.9 19.2 3x0.47 4 41 44 2.4
FN5420-3.1-44-E2XXT 3.1 1.1 1.3 14.2 3x0.68 4 45 44 2.8
FN5420-5.9-44-E2XXT 5.9 2.2 2.6 7.48 3x1.5 4 76 44 4.0
FN5420-10-44-E2XXT 10.2 4.0 4.8 4.32 3x2.2 4 91 44 6.8
FN5420-13-44-E2FXT 13.2 5.5 6.6 3.34 3x3.0 4 123 44 7.2
FN5420-18-33-E2FXT 18 7.5 9.0 2.45 3x3.7 4 150 33 7.9
FN5420-26-33-E2FXT 26 11 13 1.70 3x5 4 127 33 11.8
FN5420-32-33-E2FXT 32 15 18 1.38 3x6 4 196 33 14.2
FN5420-38-33-E2FXT 38 18.5 22 1.16 3x8 4 229 33 14.4
FN5420-45-34-E2FXT 45 22 26 0.980 3x8 4 272 34 21
FN5420-60-34-E2FXT 60 30 36 0.735 3x12 4 283 34 25
FN5420-75-35-E2FXT 75 37 44 0.588 3x15 4 154 35 30
FN5420-90-35-E2FXT 90 45 54 0.490 3x20 4 239 35 34
FN5420-110-35-E2FXT 110 55 66 0.401 3x20 4 283 35 38

**** General purpose four-pole (1500 r/min) AC induction motor rated 400 V/50 Hz.
**** General purpose four-pole (1500 r/min) AC induction motor rated 480 V/50 Hz.
**** Total capacitance value. Capacitor connection in delta (Δ)  for all versions.
**** See user and installation manual for calculation of the filter power loss at other operation point. Exact value of the complete system depends on the motor cable length and type, switching frequency and further stray parameters of the system.

Required drive settings

Ensure the drive’s switching frequency is set to the required minimum switching frequency (see filter selection table). The mode of operation, for both motor- and regenerative load, must be “scalar” (V/Hz) with a fixed switching frequency. Check the drives manufacturer manual whether special settings are necessary. In any doubt contact the drives manufacturer. CAUTION: If the motor drives settings are not correct the filter may be damaged.

Mechanical data FN 5420 IP00

2.3 to 3.1 A types

5.9 to 18 A types

26 to 60 A types

75 to 110 A types

145 to 400 A types

480 to 800 A type

1000 A types

Dimensions FN 5420 IP00

Filter A B±5 C±3 D E F G H J K L±5 M±5 N±5 O P Q R
2.3 120 115 118 107 38 6.5x5.5 -88 56 1.5 M3 - - 32 - - - -
3.1 120 120 118 107 47.2 6.5x5.5 -88 50 1.5 M3 - - 32 - - - -
5.9 150 130 137 135 45.3 8x5.5 -88 60 2 M3 - - 42 - - - -
10.2 195 156 159 170 71.5 12x9 -88 62 2.5 M4 - - 50 - - - -
13.2 195 148 160 170 71.5 12x9 -89 58 2.5 M4 - - 50 - - - -
18 220 145 183 200 57.5 12x9 -89 67 2.5 M6 - - 60 - - - -
26 220 197 158 200 77.5 12x9 ø6.5 71 2.5 M6 - - 60 - - - -
32 240 196 179 220 84.5 12x9 ø6.4 65 2.5 M6 - - 68 - - - -
38 240 196 179 220 84.5 12x9 ø6.4 65 2.5 M6 - - 68 - - - -
45 240 193 198 215 95 15x11 ø6.4 58 3 M6 - - 80 - - - -
60 240 233 198 215 115 15x11 ø6.4 77 3 M6 - - 80 - - - -
75 240 242 223 215 129 15x11 - 77 3 M6 170 37 80 20 10 3 ø9
90 265 243 218 240 126 15x11 - 79 3 M8 185 42 88 20 10 3 ø9
110 290 240 234 260 138 15x11 - 72 3 M8 201 43 96 20 10 3 ø9
145 420 338 371 370 134 24x11 - 140 5 M8 263 79 140 25 12.5 4 ø11
180 420 343 370 370 134 24x11 - 142 5 M8 264 80 140 25 12.5 4 ø11
200 420 356 371 370 134 24x11 - 142 5 M8 265 81 140 25 12.5 4 ø11
250 420 387 436 370 134 24x11 - 152 5 M8 321 87 140 40 20 4 ø13.5
302 420 430 422 370 174 24x11 - 152 5 M8 314 80 140 40 20 4 ø13.5
400 420 434 531 370 174 24x11 - 152 5 M8 418 84 140 40 20 4 ø13.5
477 420 560 627 370 174 24x11 - 273 5 M8 518 83 140 50 25 5 ø13.5
630 420 560 755 370 174 24x11 - 273 5 M8 631 96 140 50 25 5 ø13.5
710 420 600 726 370 214 24x11 - 273 5 M8 617 82 140 50 25 5 ø13.5
800 420 602 854 370 214 24x11 - 273 5 M8 734 96 140 50 25 8 ø13.5
1000 420 631 1050 370 244 24x11 - 273 5 M8 930 92 140 50 25 8 ø13.5

All dimensions in mm; 1 inch = 25.4 mm
Tolerances according: ISO 2768-m / EN 22768-m

Power terminals

Terminal designation Recommended connector type Screw thread Flex wire AWG Flex wire Screw torque value Max width cable lug*
        [mm2]   [Nm] [mm]
88 Fork cable shoe M3.5 22-16 0.35-1.5 0.78 6.4
89 Fork cable shoe M4 16-14 1.5-2.5 1.76 8
92 Ring cable shoe M6 - - - -
99 Ring cable shoe M8/M10/M12 - - - -

* To fulfill creepage/clearance acc. UL 61800-5-1 without additional protection (insulation). Creepage/clearance can vary depending on applicable standard and must be reviewed by customer. Creepage/clearance may be reduced when additional protection (insulation) is provided.

Auxiliary terminals

Filter size Recommended connector type Screw thread Flex wire AWG Flex wire Screw torque value Max width cable lug
        [mm2]   [Nm] [mm]
2.3A & 3.1A Fork cable shoe M3.5 22-16 0.35-1.5 0.78 6.4
5.9 to 18A Fork cable shoe M4 16-14 1.5-2.5 1.76 8.0
26A to 1000A No connector - 20-14 0.5-2.5 0.4 -

Earth terminals

Filter size Screw thread Screw torque value
    [Nm]
2.3 to 5.9A M3 0.6
10 to 13A M4 1.7
18 to 75A M6 4
90 to 1000A M8 9

2.3 to 38 A types

45 to 110 A types

Dimensions FN 5420 IP20

FrameDrill patternBaseBox size
TypeR +2/0S
T
U
X ±2
Y
Z ±2
A25050727022090115
B310607330280100165
C405907425375130225
D4402509460400290150
E5102909530470330170

All dimensions in mm; 1 inch = 25.4 mm
Tolerances according: ISO 2768-m / EN 22768-m

Power terminals

Terminal designation Recommended connector type Solid wire Flex wire AWG Flex wire Screw torque value
    [mm2]   [mm2]   [Nm]
44 No connector 0.5 - 10 20 - 8 0.5 - 6 1.0 - 1.2
33 No connector 0.5 - 16 20 - 6 0.5 - 10 1.5 - 1.8
34 No connector 6 - 35 10 - 2 6 - 25 4.0 - 4.5
35 No connector 10 - 50 6 - 1/0 16 - 50 7.0 - 8.0

Auxiliary terminals

Filter size Function Recommended connector type Solid wire Flex wire Flex wire Screw torque value
      [mm2] [AWG] [mm2]   [Nm]
2.3A to 110A Thermal switch signal No connector 0.5 - 6 24 - 10 0.5 - 4 0.7 - 0.8
2.3A to 110A 24V fan power input No connector 0.5 - 6 24 - 10 0.5 - 4 0.7 - 0.8

Earth terminals

Filter frame type Screw thread Screw torque value
      [Nm]
A, B, C and D M5 2.2
E M8 9.0

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4542 Luterbach
T +41 32 681 66 26
info@schaffner.com

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© 2021 Schaffner Group

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