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
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
SGD211.47
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 457-6264
Mfr. Part No.RWK 305-10-KL
BrandSchaffner
SGD240.73
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. 739-6465
Mfr. Part No.LR3 40-4/63
BrandBlock
SGD373.41
Each
units
690 V ac LR3 63A - 185 x 122 x 210mm 122mm 210mm 185mm +40°C -10°C
RS Stock No. 883-8200
Mfr. Part No.FN5040-750-99
BrandSchaffner
SGD19,475.18
Each
units
500 V ac FN 5040 750A 2 (Min)kHz 660 x 365 x 666mm 365mm 666mm 660mm +70°C -25°C
RS Stock No. 883-8232
Mfr. Part No.FN5045-260-99
BrandSchaffner
SGD6,508.39
Each
units
500 V ac FN 5045 260A 3 (Min)kHz 650 x 500 x 400mm 500mm 400mm 650mm +70°C -25°C
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
SGD91.24
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 457-6292
Mfr. Part No.RWK 305-32-KL
BrandSchaffner
SGD395.66
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. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
SGD1,729.54
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. 883-8207
Mfr. Part No.FN5040-660-99
BrandSchaffner
SGD14,090.96
Each
units
500 V ac FN 5040 660A 2 (Min)kHz 630 x 315 x 727mm 315mm 727mm 630mm +70°C -25°C
RS Stock No. 883-8311
Mfr. Part No.FN530-16-99
BrandSchaffner
SGD2,014.20
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. 883-8175
Mfr. Part No.FN5040-1200-99
BrandSchaffner
SGD24,010.47
Each
units
500 V ac FN 5040 1.2kA 2 (Min)kHz 740 x 360 x 913mm 360mm 913mm 740mm +70°C -25°C
RS Stock No. 866-1805
Mfr. Part No.3AFSAP400-010.060
BrandFUSS-EMV
SGD1,663.30
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. 739-6392
Mfr. Part No.MR3 400/13
BrandBlock
SGD120.73
Each
units
690 V ac MR3 13A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6434
Mfr. Part No.LR3 40-4/20
BrandBlock
SGD117.63
Each
units
690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
SGD31,376.17
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. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
SGD76.83
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
SGD51.28
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6415
Mfr. Part No.MR3 400/48
BrandBlock
SGD299.50
Each
units
690 V ac MR3 48A 8kHz 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
SGD88.37
Each
units
690 V ac MR3 8A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6406
Mfr. Part No.MR3 400/42
BrandBlock
SGD201.75
Each
units
690 V ac MR3 42A 8kHz 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
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