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. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
HK$6,008.30
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C
RS Stock No. 883-8153
Mfr. Part No.FN5020-75-35
BrandSchaffner
HK$27,110.80
Each
units
1000 V dc FN 5020 75A 6 → 15kHz 799 x 343 x 280mm 343mm 280mm 799mm +100°C -25°C
RS Stock No. 883-8159
Mfr. Part No.FN5020-55-34
BrandSchaffner
HK$22,066.94
Each
units
1000 V dc FN 5020 55A 6 → 15kHz 554 x 250 x 203mm 250mm 203mm 554mm +100°C -25°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. 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. 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. 739-6434
Mfr. Part No.LR3 40-4/20
BrandBlock
HK$846.00
Each
units
690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +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. 866-1849
Mfr. Part No.3AFS400-063
BrandFUSS-EMV
HK$13,308.15
Each
units
3 x 500 V ac 3AFS400 63A - 300 x 240 x 340mm 240mm 340mm 300mm +40°C -
RS Stock No. 883-8241
Mfr. Part No.FN5045-38-33
BrandSchaffner
HK$11,001.75
Each
units
500 V ac FN 5045 38A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
HK$958.06
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 883-8190
Mfr. Part No.FN5040-480-99
BrandSchaffner
HK$56,019.27
Each
units
500 V ac FN 5040 480A 3 (Min)kHz 510 x 310 x 614mm 310mm 614mm 510mm +70°C -25°C
RS Stock No. 883-8181
Mfr. Part No.FN5040-410-99
BrandSchaffner
HK$49,437.59
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. 739-6437
Mfr. Part No.LR3 40-4/10
BrandBlock
HK$614.62
Each
units
690 V ac LR3 10A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
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. 739-6459
Mfr. Part No.LR3 40-4/40
BrandBlock
HK$1,584.00
Each
units
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 883-8200
Mfr. Part No.FN5040-750-99
BrandSchaffner
HK$139,576.05
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. 739-6386
Mfr. Part No.MR3 400/6
BrandBlock
HK$510.00
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
HK$169,517.23
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. 754-6099
Mfr. Part No.FN5040-17-83
BrandSchaffner
HK$4,284.12
Each
units
500 V ac FN5040 17A 16kHz 190 x 115 x 224mm 115mm 224mm 190mm +70°C -25°C
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