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. 739-6456
Mfr. Part No.LR3 40-4/50
BrandBlock
TWD8,050
Each
units
690 V ac LR3 50A - 185 x 112 x 210mm 112mm 210mm 185mm +40°C -10°C 3D CAD Model
RS Stock No. 739-6386
Mfr. Part No.MR3 400/6
BrandBlock
TWD2,400
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C 3D CAD Model
RS Stock No. 866-1846
Mfr. Part No.3AFS400-125
BrandFUSS-EMV
TWD73,640
Each
units
3 x 500 V ac 3AFS400 125A - 360 x 350 x 340mm 350mm 340mm 360mm +40°C - -
RS Stock No. 883-8184
Mfr. Part No.FN5040-180-99
BrandSchaffner
TWD142,904
Each
units
500 V ac FN 5040 180A 3 (Min)kHz 450 x 240 x 385mm 240mm 385mm 450mm +70°C -25°C -
RS Stock No. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
TWD979,744
Each
units
500 V ac FN 5045 1.2kA 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C -
RS Stock No. 883-8238
Mfr. Part No.FN5045-24-33
BrandSchaffner
TWD34,643
Each
units
500 V ac FN 5045 24A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C -
RS Stock No. 883-8171
Mfr. Part No.FN5040-115-87
BrandSchaffner
TWD103,279
Each
units
500 V ac FN 5040 115A 3 (Min)kHz 300 x 236 x 257mm 236mm 257mm 300mm +70°C -25°C -
RS Stock No. 866-1802
Mfr. Part No.3AFSAP400-035.060
BrandFUSS-EMV
TWD40,600
Each
units
3 x 500 V ac 3AFSAP400 35A - 245 x 230 x 399mm 230mm 399mm 245mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °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. 883-8213
Mfr. Part No.FN5040-880-99
BrandSchaffner
TWD621,226
Each
units
500 V ac FN 5040 880A 2 (Min)kHz 882 x 370 x 882mm 370mm 882mm 882mm +70°C -25°C -
RS Stock No. 883-8248
Mfr. Part No.FN5045-410-99
BrandSchaffner
TWD321,890
Each
units
500 V ac FN 5045 410A 3 (Min)kHz 780 x 534 x 500mm 534mm 500mm 780mm +70°C -25°C -
RS Stock No. 739-6459
Mfr. Part No.LR3 40-4/40
BrandBlock
TWD7,050
Each
units
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C 3D CAD Model
RS Stock No. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
TWD22,037
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C 3D CAD Model
RS Stock No. 883-8226
Mfr. Part No.FN5045-17-33
BrandSchaffner
TWD28,328
Each
units
500 V ac FN 5045 17A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C -
RS Stock No. 883-8311
Mfr. Part No.FN530-16-99
BrandSchaffner
TWD63,633
Each
units
850 V dc FN 530 16A 6 → 20kHz 350 x 140 x 230mm 140mm 230mm 350mm +100°C -25°C -
RS Stock No. 457-6292
Mfr. Part No.RWK305-32-KL
BrandSchaffner
TWD9,340
Each
units
400 V ac RWK 305 32A 2 → 16kHz 95 x 155 x 195mm 95mm 195mm 155mm +100°C -25°C -
RS Stock No. 883-8305
Mfr. Part No.FN520-16-33
BrandSchaffner
TWD44,107
Each
units
288 V ac, 500 V ac FN 520 16A 6 → 20kHz 300 x 145 x 190mm 145mm 190mm 300mm +100°C -25°C -
RS Stock No. 866-1861
Mfr. Part No.3AFU400-016
BrandFUSS-EMV
TWD8,040
Each
units
3 x 500 V ac 3AFU400 16A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C - -
RS Stock No. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
TWD738,579
Each
units
500 V ac FN 5045 750A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C -