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
MYR334.29
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
MYR331.04
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
MYR259.67
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
MYR873.87
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. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
MYR233.01
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
MYR473.70
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
MYR258.91
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
MYR689.73
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
MYR3,664.11
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 866-1852
Mfr. Part No.3AFU400-010
BrandFUSS-EMV
MYR923.75
Each
units
3 x 500 V ac 3AFU400 10A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
MYR84,617.96
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. 883-8257
Mfr. Part No.FN5045-480-99
BrandSchaffner
MYR33,195.54
Each
units
500 V ac FN 5045 480A 3 (Min)kHz 780 x 534 x 500mm 534mm 500mm 780mm +70°C -25°C
RS Stock No. 883-8232
Mfr. Part No.FN5045-260-99
BrandSchaffner
MYR24,454.78
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. 866-1791
Mfr. Part No.3AFSAP400-2,5.060
BrandFUSS-EMV
MYR2,432.71
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 +40 (with power derating) °C, -20 (without power derating) °C
RS Stock No. 866-1858
Mfr. Part No.3AFU400-006
BrandFUSS-EMV
MYR822.19
Each
units
3 x 500 V ac 3AFU400 6A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 883-8272
Mfr. Part No.FN5045-880-99
BrandSchaffner
MYR93,874.80
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. 883-8279
Mfr. Part No.FN5045-8-44
BrandSchaffner
MYR1,998.86
Each
units
500 V ac FN 5045 8A 4 (Min)kHz 330 x 100 x 165mm 100mm 165mm 330mm +70°C -25°C
RS Stock No. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
MYR2,686.11
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C
RS Stock No. 883-8238
Mfr. Part No.FN5045-24-33
BrandSchaffner
MYR3,318.54
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. 866-1877
Mfr. Part No.3AFU400-125
BrandFUSS-EMV
MYR2,519.76
Each
units
3 x 500 V ac 3AFU400 125A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
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