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
TWD5,191.00
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. 883-8232
Mfr. Part No.FN5045-260-99
BrandSchaffner
TWD147,456.00
Each
units
500 V ac FN 5045 260A 3 (Min)kHz 650 x 500 x 400mm 500mm 400mm 650mm +70°C -25°C
RS Stock No. 883-8210
Mfr. Part No.FN5045-10-44
BrandSchaffner
TWD17,692.00
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. 883-8147
Mfr. Part No.FN5020-120-35
BrandSchaffner
TWD123,838.00
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. 883-8153
Mfr. Part No.FN5020-75-35
BrandSchaffner
TWD107,802.00
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. 866-1805
Mfr. Part No.3AFSAP400-010.060
BrandFUSS-EMV
TWD31,800.00
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. 883-8235
Mfr. Part No.FN5045-180-99
BrandSchaffner
TWD125,676.00
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. 883-8279
Mfr. Part No.FN5045-8-44
BrandSchaffner
TWD16,566.00
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. 883-8213
Mfr. Part No.FN5040-880-99
BrandSchaffner
TWD462,241.00
Each
units
500 V ac FN 5040 880A 2 (Min)kHz 882 x 370 x 882mm 370mm 882mm 882mm +70°C -25°C
RS Stock No. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
TWD911,162.00
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. 883-8159
Mfr. Part No.FN5020-55-34
BrandSchaffner
TWD89,415.00
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. 866-1824
Mfr. Part No.3AFS400-002,5 IG
BrandFUSS-EMV
TWD10,200.00
Each
units
3 x 500 V ac 3AFS400 2.5A - 165 x 160 x 190mm 160mm 190mm 165mm +40°C -
RS Stock No. 883-8263
Mfr. Part No.FN5045-660-99
BrandSchaffner
TWD356,879.00
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. 739-6355
Mfr. Part No.SFB 400/10
BrandBlock
TWD17,030.00
Each
units
520 V ac SFB 10A 8kHz 120 x 155 x 160mm 155mm 160mm 120mm +40°C -
RS Stock No. 739-6465
Mfr. Part No.LR3 40-4/63
BrandBlock
TWD9,300.00
Each
units
690 V ac LR3 63A - 185 x 122 x 210mm 122mm 210mm 185mm +40°C -10°C
RS Stock No. 883-8244
Mfr. Part No.FN5045-4.5-44
BrandSchaffner
TWD16,364.00
Each
units
500 V ac FN 5045 4.5A 4 (Min)kHz 330 x 100 x 165mm 100mm 165mm 330mm +70°C -25°C
RS Stock No. 883-8181
Mfr. Part No.FN5040-410-99
BrandSchaffner
TWD183,608.00
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. 883-8226
Mfr. Part No.FN5045-17-33
BrandSchaffner
TWD24,768.00
Each
units
500 V ac FN 5045 17A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
RS Stock No. 739-6421
Mfr. Part No.LR3 40-4/4
BrandBlock
TWD1,900.00
Each
units
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
TWD3,634.00
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C