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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Omschrijving Prijs Maximum Voltage Rating Series Maximum Current Rating Switching Frequency Dimensions Depth Height Length Maximum Operating Temperature Minimum Operating Temperature
RS-stocknr. 739-6471
FabrikantnummerLR3 40-4/90
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€ 305,58
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690 V ac LR3 90A - 267 x 149 x 200mm 149mm 200mm 267mm +40°C -10°C
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500 V ac FN 5040 48A 4 (Min)kHz 300 x 171 x 344mm 171mm 344mm 300mm +70°C -25°C
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690 V ac LR3 63A - 185 x 122 x 210mm 122mm 210mm 185mm +40°C -10°C
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FabrikantnummerFN5045-750-99
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500 V ac FN 5045 750A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C
RS-stocknr. 866-1795
Fabrikantnummer3AFSAP400-007.060
FabrikantFUSS-EMV
€ 949,52
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3 x 500 V ac 3AFSAP400 7A - 205 x 147 x 268mm 147mm 268mm 205mm +40 (without power derating) °C, +60 (with power derating) °C +40 (with power derating) °C, -20 (without power derating) °C
RS-stocknr. 866-1846
Fabrikantnummer3AFS400-125
FabrikantFUSS-EMV
€ 2.251,56
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3 x 500 V ac 3AFS400 125A - 360 x 350 x 340mm 350mm 340mm 360mm +40°C -
RS-stocknr. 739-6446
FabrikantnummerLR3 40-4/30
FabrikantBlock
€ 143,99
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690 V ac LR3 30A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS-stocknr. 883-8320
FabrikantnummerFN530-4-99
FabrikantSchaffner
€ 678,46
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850 V dc FN 530 4A 6 → 20kHz 390 x 90 x 150mm 90mm 150mm 390mm +100°C -25°C
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FabrikantnummerFN5045-38-33
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500 V ac FN 5045 38A 4 (Min)kHz 440 x 160 x 245mm 160mm 245mm 440mm +70°C -25°C
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FabrikantnummerLR3 40-4/35
FabrikantBlock
€ 153,49
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690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
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FabrikantnummerFN5040-1200-99
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€ 14.156,09
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500 V ac FN 5040 1.2kA 2 (Min)kHz 740 x 360 x 913mm 360mm 913mm 740mm +70°C -25°C
RS-stocknr. 866-1811
Fabrikantnummer3AFSAP400-040.060
FabrikantFUSS-EMV
€ 793,20
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3 x 500 V ac 3AFSAP400 40A - 245 x 230 x 399mm 230mm 399mm 245mm +40 (without power derating) °C, +60 (with power derating) °C +40 (with power derating) °C, -20 (without power derating) °C
RS-stocknr. 739-6409
FabrikantnummerMR3 400/30
FabrikantBlock
€ 118,05
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690 V ac MR3 30A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS-stocknr. 883-8213
FabrikantnummerFN5040-880-99
FabrikantSchaffner
€ 11.334,76
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Aantal stuks
500 V ac FN 5040 880A 2 (Min)kHz 882 x 370 x 882mm 370mm 882mm 882mm +70°C -25°C
RS-stocknr. 739-6434
FabrikantnummerLR3 40-4/20
FabrikantBlock
€ 68,09
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690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS-stocknr. 883-8248
FabrikantnummerFN5045-410-99
FabrikantSchaffner
€ 5.915,78
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Aantal stuks
500 V ac FN 5045 410A 3 (Min)kHz 780 x 534 x 500mm 534mm 500mm 780mm +70°C -25°C
RS-stocknr. 883-8229
FabrikantnummerFN5045-115-35
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€ 2.044,42
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500 V ac FN 5045 115A 3 (Min)kHz 615 x 370 x 203mm 370mm 203mm 615mm +70°C -25°C
RS-stocknr. 883-8263
FabrikantnummerFN5045-660-99
FabrikantSchaffner
€ 10.030,96
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Aantal stuks
500 V ac FN 5045 660A 2 (Min)kHz 1280 x 794 x 498mm 794mm 498mm 1280mm +70°C -25°C
RS-stocknr. 702-4050
FabrikantnummerB84143V0016R127
FabrikantEPCOS
€ 481,02
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Aantal stuks
520 V ac - 16A 8kHz - - - - - -
RS-stocknr. 883-8207
FabrikantnummerFN5040-660-99
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500 V ac FN 5040 660A 2 (Min)kHz 630 x 315 x 727mm 315mm 727mm 630mm +70°C -25°C
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