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. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
$636.39
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C
RS Stock No. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
$1,263.65
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. 739-6434
Mfr. Part No.LR3 40-4/20
BrandBlock
$162.56
Each
units
690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 754-6083
Mfr. Part No.FN5040-4.5-82
BrandSchaffner
$459.00
Each
units
500 V ac FN5040 4.5A 16kHz 125 x 77 x 171mm 77mm 171mm 125mm +70°C -25°C
RS Stock No. 739-6437
Mfr. Part No.LR3 40-4/10
BrandBlock
$97.68
Each
units
690 V ac LR3 10A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 457-6264
Mfr. Part No.RWK 305-10-KL
BrandSchaffner
$214.36
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. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
$77.75
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 866-1833
Mfr. Part No.3AFS400-010 IG
BrandFUSS-EMV
$481.52
Each
units
3 x 500 V ac 3AFS400 10A - 165 x 160 x 250mm 160mm 250mm 165mm +40°C -
RS Stock No. 739-6377
Mfr. Part No.MR3 400/4
BrandBlock
$83.20
Each
units
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 866-1824
Mfr. Part No.3AFS400-002,5 IG
BrandFUSS-EMV
$445.01
Each
units
3 x 500 V ac 3AFS400 2.5A - 165 x 160 x 190mm 160mm 190mm 165mm +40°C -
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
$256.09
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. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
$796.15
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C
RS Stock No. 739-6351
Mfr. Part No.SFB 400/4
BrandBlock
$532.64
Each
units
520 V ac SFB 4A 8kHz 105 x 155 x 160mm 155mm 160mm 105mm +40°C -
RS Stock No. 866-1852
Mfr. Part No.3AFU400-010
BrandFUSS-EMV
$292.99
Each
units
3 x 500 V ac 3AFU400 10A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 739-6402
Mfr. Part No.MR3 400/37
BrandBlock
$211.85
Each
units
690 V ac MR3 37A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 739-6428
Mfr. Part No.LR3 40-4/8
BrandBlock
$108.49
Each
units
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6412
Mfr. Part No.LR3 40-4/2
BrandBlock
$54.26
Each
units
690 V ac LR3 2A - 78 x 56 x 100mm 56mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
$130.18
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
$1,405.21
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 866-1864
Mfr. Part No.3AFU400-035
BrandFUSS-EMV
$486.60
Each
units
3 x 500 V ac 3AFU400 35A - 220 x 192 x 290mm 192mm 290mm 220mm +40°C -
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