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
TWD5,577.00
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. 883-8235
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. 883-8317
Mfr. Part No.FN530-12-99
BrandSchaffner
TWD43,913.00
Each
units
850 V dc FN 530 12A 6 → 20kHz 390 x 90 x 215mm 90mm 215mm 390mm +100°C -25°C
RS Stock No. 883-8238
Mfr. Part No.FN5045-24-33
BrandSchaffner
TWD28,328.00
Each
units
500 V ac FN 5045 24A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
RS Stock No. 883-8320
Mfr. Part No.FN530-4-99
BrandSchaffner
TWD28,456.00
Each
units
850 V dc FN 530 4A 6 → 20kHz 390 x 90 x 150mm 90mm 150mm 390mm +100°C -25°C
RS Stock No. 883-8175
Mfr. Part No.FN5040-1200-99
BrandSchaffner
TWD586,963.00
Each
units
500 V ac FN 5040 1.2kA 2 (Min)kHz 740 x 360 x 913mm 360mm 913mm 740mm +70°C -25°C
RS Stock No. 883-8184
Mfr. Part No.FN5040-180-99
BrandSchaffner
TWD124,605.00
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. 457-6292
Mfr. Part No.RWK 305-32-KL
BrandSchaffner
TWD9,340.00
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. 883-8190
Mfr. Part No.FN5040-480-99
BrandSchaffner
TWD241,105.00
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. 883-8266
Mfr. Part No.FN5045-750-99
BrandSchaffner
TWD686,878.00
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. 883-8169
Mfr. Part No.FN5030-55-34
BrandSchaffner
TWD74,914.00
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. 883-8204
Mfr. Part No.FN5040-75-87
BrandSchaffner
TWD65,560.00
Each
units
500 V ac FN 5040 75A 3 (Min)kHz 300 x 240 x 373mm 240mm 373mm 300mm +70°C -25°C
RS Stock No. 883-8241
Mfr. Part No.FN5045-38-33
BrandSchaffner
TWD47,351.00
Each
units
500 V ac FN 5045 38A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
RS Stock No. 883-8272
Mfr. Part No.FN5045-880-99
BrandSchaffner
TWD612,958.00
Each
units
500 V ac FN 5045 880A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C
RS Stock No. 883-8216
Mfr. Part No.FN5040-8-82
BrandSchaffner
TWD13,686.00
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. 883-8257
Mfr. Part No.FN5045-480-99
BrandSchaffner
TWD296,843.00
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
TWD94,782.00
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. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
TWD25,015.00
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C
RS Stock No. 883-8200
Mfr. Part No.FN5040-750-99
BrandSchaffner
TWD565,558.00
Each
units
500 V ac FN 5040 750A 2 (Min)kHz 660 x 365 x 666mm 365mm 666mm 660mm +70°C -25°C
RS Stock No. 883-8311
Mfr. Part No.FN530-16-99
BrandSchaffner
TWD46,663.00
Each
units
850 V dc FN 530 16A 6 → 20kHz 350 x 140 x 230mm 140mm 230mm 350mm +100°C -25°C