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. 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
RS Stock No. 111-5322
Mfr. Part No.B84143V0006R127
BrandEPCOS
HK$2,950.82
Each
units
520 V ac B84143V 6A - 283 x 110 x 290mm 110mm 290mm 283mm - -
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. 883-8254
Mfr. Part No.FN5045-62-34
BrandSchaffner
HK$14,992.60
Each
units
500 V ac FN 5045 62A 3 (Min)kHz 515 x 310 x 153mm 310mm 153mm 515mm +70°C -25°C
RS Stock No. 739-6406
Mfr. Part No.MR3 400/42
BrandBlock
HK$1,630.00
Each
units
690 V ac MR3 42A 8kHz 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 883-8187
Mfr. Part No.FN5040-260-99
BrandSchaffner
HK$43,383.57
Each
units
500 V ac FN 5040 260A 3 (Min)kHz 450 x 240 x 450mm 240mm 450mm 450mm +70°C -25°C
RS Stock No. 883-8216
Mfr. Part No.FN5040-8-82
BrandSchaffner
HK$3,276.29
Each
units
500 V ac FN 5040 8A 4 (Min)kHz 155 x 84 x 212mm 84mm 212mm 155mm +70°C -25°C
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
HK$1,287.80
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°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. 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. 883-8263
Mfr. Part No.FN5045-660-99
BrandSchaffner
HK$125,272.34
Each
units
500 V ac FN 5045 660A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°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. 866-1877
Mfr. Part No.3AFU400-125
BrandFUSS-EMV
HK$6,632.80
Each
units
3 x 500 V ac 3AFU400 125A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
RS Stock No. 883-8147
Mfr. Part No.FN5020-120-35
BrandSchaffner
HK$31,143.41
Each
units
1000 V dc FN 5020 120A 6 → 15kHz 799 x 343 x 280mm 343mm 280mm 799mm +100°C -25°C
RS Stock No. 739-6402
Mfr. Part No.MR3 400/37
BrandBlock
HK$1,350.00
Each
units
690 V ac MR3 37A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°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. 739-6428
Mfr. Part No.LR3 40-4/8
BrandBlock
HK$580.83
Each
units
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
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. 702-4056
Mfr. Part No.B84143V0011R127
BrandEPCOS
HK$4,209.29
Each
units
520 V ac B84143V 11A 8kHz - - - - - -
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
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