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. 457-6264
Mfr. Part No.RWK 305-10-KL
BrandSchaffner
HK$1,407.91
Each
units
400 V ac RWK 305 10A 2 → 16kHz 100 x 70 x 115mm 70mm 115mm 100mm +100°C -25°C
RS Stock No. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
HK$9,920.44
Each
units
3 x 500 V ac 3AFSAP400 16A - 205 x 176 x 268mm 176mm 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. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
HK$3,708.02
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C
RS Stock No. 739-6446
Mfr. Part No.LR3 40-4/30
BrandBlock
HK$1,504.60
Each
units
690 V ac LR3 30A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
HK$123,541.83
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. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
HK$173,409.87
Each
units
500 V ac FN 5045 1.2kA 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
HK$1,700.69
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. 739-6459
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. 754-6099
Mfr. Part No.FN5040-17-83
BrandSchaffner
HK$4,488.73
Each
units
500 V ac FN5040 17A 16kHz 190 x 115 x 224mm 115mm 224mm 190mm +70°C -25°C
RS Stock No. 754-6083
Mfr. Part No.FN5040-4.5-82
BrandSchaffner
HK$2,815.90
Each
units
500 V ac FN5040 4.5A 4kHz 125 x 77 x 171mm 77mm 171mm 125mm +70°C -25°C
RS Stock No. 883-8169
Mfr. Part No.FN5030-55-34
BrandSchaffner
HK$17,996.62
Each
units
1000 V dc FN 5030 55A 6 → 15kHz 354 x 250 x 200mm 250mm 200mm 354mm +100°C -25°C
RS Stock No. 883-8229
Mfr. Part No.FN5045-115-35
BrandSchaffner
HK$20,482.85
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. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
HK$440.69
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°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. 883-8184
Mfr. Part No.FN5040-180-99
BrandSchaffner
HK$29,645.61
Each
units
500 V ac FN 5040 180A 3 (Min)kHz 450 x 240 x 385mm 240mm 385mm 450mm +70°C -25°C
RS Stock No. 883-8190
Mfr. Part No.FN5040-480-99
BrandSchaffner
HK$57,183.34
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. 739-6402
Mfr. Part No.MR3 400/37
BrandBlock
HK$1,238.40
Each
units
690 V ac MR3 37A 8kHz 155 x 95 x 162mm 95mm 162mm 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. 866-1820
Mfr. Part No.3ACMF400-150.060
BrandFUSS-EMV
HK$27,320.91
Each
units
3 x 500 V ac 3ACMF400 150A - 350 x 400 x 180mm 180mm 350mm 400mm +40°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 -
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