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. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
MYR294.16
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
MYR291.83
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6377
Mfr. Part No.MR3 400/4
BrandBlock
MYR284.82
Each
units
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
MYR788.55
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. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
MYR703.92
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
MYR387.74
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
MYR225.98
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
MYR208.91
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
MYR3,548.99
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 739-6428
Mfr. Part No.LR3 40-4/8
BrandBlock
MYR238.20
Each
units
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
MYR6,271.63
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 +40 (with power derating) °C, -20 (without power derating) °C
RS Stock No. 883-8156
Mfr. Part No.FN5020-25-33
BrandSchaffner
MYR4,516.59
Each
units
1000 V dc FN 5020 25A 6 → 15kHz 410 x 200 x 163mm 200mm 163mm 410mm +100°C -25°C
RS Stock No. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
MYR1,719.27
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C
RS Stock No. 739-6459
Mfr. Part No.LR3 40-4/40
BrandBlock
MYR802.59
Each
units
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 883-8311
Mfr. Part No.FN530-16-99
BrandSchaffner
MYR5,684.93
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. 866-1868
Mfr. Part No.3AFU400-080
BrandFUSS-EMV
MYR3,502.50
Each
units
3 x 500 V ac 3AFU400 80A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
RS Stock No. 702-4050
Mfr. Part No.B84143V0016R127
BrandEPCOS
MYR3,073.74
Each
units
520 V ac - 16A 8kHz - - - - - -
RS Stock No. 754-6099
Mfr. Part No.FN5040-17-83
BrandSchaffner
MYR2,083.00
Each
units
500 V ac FN5040 17A 16kHz 190 x 115 x 224mm 115mm 224mm 190mm +70°C -25°C
RS Stock No. 457-6264
Mfr. Part No.RWK 305-10-KL
BrandSchaffner
MYR652.80
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. 739-6383
Mfr. Part No.MR3 400/10
BrandBlock
MYR388.68
Each
units
690 V ac MR3 10A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
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