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. 739-6383
Mfr. Part No.MR3 400/10
BrandBlock
€79.63
Each
units
690 V ac MR3 10A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6452
Mfr. Part No.LR3 40-4/45
BrandBlock
€143.79
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units
690 V ac LR3 45A - 185 x 112 x 210mm 112mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6428
Mfr. Part No.LR3 40-4/8
BrandBlock
€41.42
Each
units
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
€59.20
Each
units
690 V ac MR3 8A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6386
Mfr. Part No.MR3 400/6
BrandBlock
€60.38
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 883-8175
Mfr. Part No.FN5040-1200-99
BrandSchaffner
€14,121.61
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. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
€13,443.12
Each
units
500 V ac FN 5045 750A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C
RS Stock No. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
€17,832.63
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. 739-6462
Mfr. Part No.LR3 40-4/80
BrandBlock
€217.01
Each
units
690 V ac LR3 80A - 210 x 125 x 240mm 125mm 240mm 210mm +40°C -10°C
RS Stock No. 739-6406
Mfr. Part No.MR3 400/42
BrandBlock
€116.79
Each
units
690 V ac MR3 42A 8kHz 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6409
Mfr. Part No.MR3 400/30
BrandBlock
€128.20
Each
units
690 V ac MR3 30A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 739-6412
Mfr. Part No.LR3 40-4/2
BrandBlock
€23.91
Each
units
690 V ac LR3 2A - 78 x 56 x 100mm 56mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6415
Mfr. Part No.MR3 400/48
BrandBlock
€132.45
Each
units
690 V ac MR3 48A 8kHz 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
€130.81
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
€29.68
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6446
Mfr. Part No.LR3 40-4/30
BrandBlock
€163.01
Each
units
690 V ac LR3 30A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6478
Mfr. Part No.LR3 40-4/115
BrandBlock
€402.72
Each
units
690 V ac LR3 115A - 291 x 179 x 210mm 179mm 210mm 291mm +40°C -10°C
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
€200.36
Each
units
400 V ac RWK 305 17A 2 → 16kHz 80 x 125 x 140mm 80mm 140mm 125mm +100°C -25°C
RS Stock No. 866-1868
Mfr. Part No.3AFU400-080
BrandFUSS-EMV
€564.42
Each
units
3 x 500 V ac 3AFU400 80A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
RS Stock No. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
€45.81
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
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