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. 866-1820
Mfr. Part No.3ACMF400-150.060
BrandFUSS-EMV
HK$28,946.98
Each
units
3 x 500 V ac 3ACMF400 150A - 350 x 400 x 180mm 180mm 350mm 400mm +40°C -
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
HK$2,028.43
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. 739-6409
Mfr. Part No.MR3 400/30
BrandBlock
HK$1,330.00
Each
units
690 V ac MR3 30A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 866-1842
Mfr. Part No.3AFS400-080
BrandFUSS-EMV
HK$18,266.71
Each
units
3 x 500 V ac 3AFS400 80A - 360 x 320 x 330mm 320mm 330mm 360mm +40°C -
RS Stock No. 883-8229
Mfr. Part No.FN5045-115-35
BrandSchaffner
HK$20,065.88
Each
units
500 V ac FN 5045 115A 3 (Min)kHz 615 x 370 x 203mm 370mm 203mm 615mm +70°C -25°C
RS Stock No. 866-1827
Mfr. Part No.3ACMF400-100.060
BrandFUSS-EMV
HK$20,216.20
Each
units
3 x 500 V ac 3ACMF400 100A - - - - - - -
RS Stock No. 702-4056
Mfr. Part No.B84143V0011R127
BrandEPCOS
HK$4,295.19
Each
units
520 V ac B84143V 11A 8kHz - - - - - -
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
HK$403.75
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6364
Mfr. Part No.SFB 400/16,5
BrandBlock
HK$4,890.00
Each
units
520 V ac SFB 16.5A 8kHz 160 x 190 x 185mm 190mm 185mm 160mm +40°C -
RS Stock No. 457-6292
Mfr. Part No.RWK 305-32-KL
BrandSchaffner
HK$2,314.04
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. 866-1858
Mfr. Part No.3AFU400-006
BrandFUSS-EMV
HK$2,161.59
Each
units
3 x 500 V ac 3AFU400 6A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 866-1802
Mfr. Part No.3AFSAP400-035.060
BrandFUSS-EMV
HK$12,905.46
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. 739-6383
Mfr. Part No.MR3 400/10
BrandBlock
HK$790.00
Each
units
690 V ac MR3 10A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 866-1791
Mfr. Part No.3AFSAP400-2,5.060
BrandFUSS-EMV
HK$6,399.76
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 -20 (without power derating) °C, +40 (with power derating) °C
RS Stock No. 883-8181
Mfr. Part No.FN5040-410-99
BrandSchaffner
HK$49,809.40
Each
units
500 V ac FN 5040 410A 3 (Min)kHz 480 x 240 x 596mm 240mm 596mm 480mm +70°C -25°C
RS Stock No. 739-6395
Mfr. Part No.MR3 400/18
BrandBlock
HK$1,010.00
Each
units
690 V ac MR3 18A 8kHz 120 x 140 x 140mm 140mm 140mm 120mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
HK$7,665.96
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 739-6415
Mfr. Part No.MR3 400/48
BrandBlock
HK$1,850.00
Each
units
690 V ac MR3 48A 8kHz 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 866-1846
Mfr. Part No.3AFS400-125
BrandFUSS-EMV
HK$23,416.19
Each
units
3 x 500 V ac 3AFS400 125A - 360 x 350 x 340mm 350mm 340mm 360mm +40°C -
RS Stock No. 883-8235
Mfr. Part No.FN5045-180-99
BrandSchaffner
HK$29,199.98
Each
units
500 V ac FN 5045 180A 3 (Min)kHz 650 x 500 x 400mm 500mm 400mm 650mm +70°C -25°C
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