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. 457-6292
Mfr. Part No.RWK 305-32-KL
BrandSchaffner
HK$2,478.80
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. 739-6459
Mfr. Part No.LR3 40-4/40
BrandBlock
HK$1,270.60
Each
units
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6465
Mfr. Part No.LR3 40-4/63
BrandBlock
HK$2,131.73
Each
units
690 V ac LR3 63A - 185 x 122 x 210mm 122mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6364
Mfr. Part No.SFB 400/16,5
BrandBlock
HK$3,629.60
Each
units
520 V ac SFB 16.5A 8kHz 160 x 190 x 185mm 190mm 185mm 160mm +40°C -
RS Stock No. 739-6383
Mfr. Part No.MR3 400/10
BrandBlock
HK$669.77
Each
units
690 V ac MR3 10A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6409
Mfr. Part No.MR3 400/30
BrandBlock
HK$1,247.93
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$18,235.47
Each
units
3 x 500 V ac 3AFS400 80A - 360 x 320 x 330mm 320mm 330mm 360mm +40°C -
RS Stock No. 111-5322
Mfr. Part No.B84143V0006R127
BrandEPCOS
HK$2,742.56
Each
units
520 V ac B84143V 6A - 283 x 110 x 290mm 110mm 290mm 283mm - -
RS Stock No. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
HK$506.90
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$1,837.40
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. 883-8216
Mfr. Part No.FN5040-8-82
BrandSchaffner
HK$3,387.72
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. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
HK$7,728.31
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 866-1849
Mfr. Part No.3AFS400-063
BrandFUSS-EMV
HK$12,560.59
Each
units
3 x 500 V ac 3AFS400 63A - 300 x 240 x 340mm 240mm 340mm 300mm +40°C -
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
HK$297.56
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6440
Mfr. Part No.LR3 40-4/35
BrandBlock
HK$1,603.91
Each
units
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 866-1868
Mfr. Part No.3AFU400-080
BrandFUSS-EMV
HK$5,540.23
Each
units
3 x 500 V ac 3AFU400 80A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
HK$364.19
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 866-1805
Mfr. Part No.3AFSAP400-010.060
BrandFUSS-EMV
HK$10,091.02
Each
units
3 x 500 V ac 3AFSAP400 10A - 205 x 147 x 268mm 147mm 268mm 205mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
HK$668.16
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 754-6099
Mfr. Part No.FN5040-17-83
BrandSchaffner
HK$4,489.00
Each
units
500 V ac FN5040 17A 16kHz 190 x 115 x 224mm 115mm 224mm 190mm +70°C -25°C