Sinusoidal Filters

Sinusoidal filters are passive components used to provide electrical circuits with the correct frequencies to ensure optimal performance. These elements, also called sine wave filters, are low pass devices which means they let low-frequency signals pass but block or impede high-frequency signals.

Circuits requiring longer cables usually have sinusoidal filters to convert rectangular pulse width modulation (PWM) signals into smooth wave voltage. This will prevent premature circuit damage and prolong the lifespan of AC motor drives by reducing stress on the motor's insulation.

What are sinusoidal filters used for?

Sinusoidal filters protect motor windings and bearings from damage due to voltage spikes, cable stripping, current loss and overheating.

These filters are used in equipment such as pumps, ventilators, conveyors, compressors, elevators and cranes.

Types of sinusoidal filters

Enclosed or open panel versions exist:

  • Enclosed filters come in pre-packed boxes and can be installed onsite for immediate use without any adjustments, mounting or wiring needed.
  • Open panel filters are assembled leaving the back panel accessible for the user to mount and wire as preferred.

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Filters

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Description Price Maximum Voltage Rating Series Maximum Current Rating Switching Frequency Dimensions Depth Height Length Maximum Operating Temperature Minimum Operating Temperature CAD Drawing
RS Stock No. 457-6264
Mfr. Part No.RWK305-10-KL
BrandSchaffner
TWD5,191
Each
units
400 V ac RWK 305 10A 2 → 16kHz 100 x 70 x 115mm 70mm 115mm 100mm +100°C -25°C -
RS Stock No. 883-8190
Mfr. Part No.FN5040-480-99
BrandSchaffner
TWD312,400
Each
units
500 V ac FN 5040 480A 3 (Min)kHz 510 x 310 x 614mm 310mm 614mm 510mm +70°C -25°C -
RS Stock No. 866-1805
Mfr. Part No.3AFSAP400-010.060
BrandFUSS-EMV
TWD31,800
Each
units
3 x 500 V ac 3AFSAP400 10A - 205 x 147 x 268mm 147mm 268mm 205mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °C -
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
TWD1,900
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C 3D CAD Model
RS Stock No. 739-6437
Mfr. Part No.LR3 40-4/10
BrandBlock
TWD2,331
Each
units
690 V ac LR3 10A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C 3D CAD Model
RS Stock No. 866-1818
Mfr. Part No.3ACMF400-080.060
BrandFUSS-EMV
TWD62,040
Each
units
3 x 500 V ac 3ACMF400 80A - 290 x 370 x 160mm 160mm 290mm 370mm +40°C - -
RS Stock No. 883-8272
Mfr. Part No.FN5045-880-99
BrandSchaffner
TWD819,376
Each
units
500 V ac FN 5045 880A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C -
RS Stock No. 883-8193
Mfr. Part No.FN5040-48-85
BrandSchaffner
TWD51,639
Each
units
500 V ac FN 5040 48A 4 (Min)kHz 300 x 171 x 344mm 171mm 344mm 300mm +70°C -25°C -
RS Stock No. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
TWD33,040
Each
units
3 x 500 V ac 3AFSAP400 16A - 205 x 176 x 268mm 176mm 268mm 205mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °C -
RS Stock No. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
TWD2,200
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C 3D CAD Model
RS Stock No. 866-1827
Mfr. Part No.3ACMF400-100.060
BrandFUSS-EMV
TWD63,600
Each
units
3 x 500 V ac 3ACMF400 100A - - - - - - - -
RS Stock No. 739-6351
Mfr. Part No.SFB 400/4
BrandBlock
TWD13,540
Each
units
520 V ac SFB 4A 8kHz 105 x 155 x 160mm 155mm 160mm 105mm +40°C - 3D CAD Model
RS Stock No. 739-6415
Mfr. Part No.MR3 400/48
BrandBlock
TWD7,410
Each
units
690 V ac MR3 48A 8kHz 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C 3D CAD Model
RS Stock No. 883-8254
Mfr. Part No.FN5045-62-34
BrandSchaffner
TWD71,271
Each
units
500 V ac FN 5045 62A 3 (Min)kHz 515 x 310 x 153mm 310mm 153mm 515mm +70°C -25°C -
RS Stock No. 883-8181
Mfr. Part No.FN5040-410-99
BrandSchaffner
TWD255,852
Each
units
500 V ac FN 5040 410A 3 (Min)kHz 480 x 240 x 596mm 240mm 596mm 480mm +70°C -25°C -
RS Stock No. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
TWD12,838
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C -
RS Stock No. 866-1877
Mfr. Part No.3AFU400-125
BrandFUSS-EMV
TWD20,840
Each
units
3 x 500 V ac 3AFU400 125A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C - -
RS Stock No. 883-8263
Mfr. Part No.FN5045-660-99
BrandSchaffner
TWD545,806
Each
units
500 V ac FN 5045 660A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C -
RS Stock No. 739-6409
Mfr. Part No.MR3 400/30
BrandBlock
TWD5,330
Each
units
690 V ac MR3 30A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C 3D CAD Model
RS Stock No. 866-1791
Mfr. Part No.3AFSAP400-2,5.060
BrandFUSS-EMV
TWD20,120
Each
units
3 x 500 V ac 3AFSAP400 2.5A - 193 x 118 x 268mm 118mm 268mm 193mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °C -