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. 866-1842
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. 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. 883-8257
Mfr. Part No.FN5045-480-99
BrandSchaffner
HK$69,185.98
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. 883-8178
Mfr. Part No.FN5030-75-35
BrandSchaffner
HK$22,320.81
Each
units
1000 V dc FN 5030 75A 6 → 15kHz 434 x 343 x 283mm 343mm 283mm 434mm +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. 883-8210
Mfr. Part No.FN5045-10-44
BrandSchaffner
HK$4,449.25
Each
units
500 V ac FN 5045 10A 4 (Min)kHz 330 x 100 x 165mm 100mm 165mm 330mm +70°C -25°C
RS Stock No. 866-1868
Mfr. Part No.3AFU400-080
BrandFUSS-EMV
HK$5,869.98
Each
units
3 x 500 V ac 3AFU400 80A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
RS Stock No. 739-6446
Mfr. Part No.LR3 40-4/30
BrandBlock
HK$1,630.00
Each
units
690 V ac LR3 30A - 155 x 110 x 177mm 110mm 177mm 155mm +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. 866-1855
Mfr. Part No.3AFS400-180
BrandFUSS-EMV
HK$28,565.57
Each
units
3 x 500 V ac 3AFS400 180A - 480 x 300 x 440mm 300mm 440mm 480mm +40°C -
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. 739-6440
Mfr. Part No.LR3 40-4/35
BrandBlock
HK$1,730.00
Each
units
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 883-8279
Mfr. Part No.FN5045-8-44
BrandSchaffner
HK$4,166.09
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. 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. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
HK$3,528.02
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C
RS Stock No. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
HK$510.00
Each
units
690 V ac MR3 8A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°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. 883-8260
Mfr. Part No.FN5045-75-35
BrandSchaffner
HK$18,304.24
Each
units
500 V ac FN 5045 75A 3 (Min)kHz 615 x 370 x 203mm 370mm 203mm 615mm +70°C -25°C
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. 883-8238
Mfr. Part No.FN5045-24-33
BrandSchaffner
HK$6,916.55
Each
units
500 V ac FN 5045 24A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
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