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. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
MYR334.29
Each
units
690 V ac MR3 8A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6386
Mfr. Part No.MR3 400/6
BrandBlock
MYR331.04
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6377
Mfr. Part No.MR3 400/4
BrandBlock
MYR259.67
Each
units
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 457-6270
Mfr. Part No.RWK 305-17-KL
BrandSchaffner
MYR873.87
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. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
MYR233.01
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
MYR473.70
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
MYR689.73
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
MYR258.91
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
MYR3,664.11
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 883-8311
Mfr. Part No.FN530-16-99
BrandSchaffner
MYR7,290.33
Each
units
850 V dc FN 530 16A 6 → 20kHz 350 x 140 x 230mm 140mm 230mm 350mm +100°C -25°C
RS Stock No. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
MYR3,994.87
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 +40 (with power derating) °C, -20 (without power derating) °C
RS Stock No. 883-8162
Mfr. Part No.FN5030-120-35
BrandSchaffner
MYR13,563.35
Each
units
1000 V dc FN 5030 120A 6 → 15kHz 434 x 343 x 283mm 343mm 283mm 434mm +100°C -25°C
RS Stock No. 883-8184
Mfr. Part No.FN5040-180-99
BrandSchaffner
MYR16,372.36
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. 883-8248
Mfr. Part No.FN5045-410-99
BrandSchaffner
MYR36,878.49
Each
units
500 V ac FN 5045 410A 3 (Min)kHz 780 x 534 x 500mm 534mm 500mm 780mm +70°C -25°C
RS Stock No. 883-8222
Mfr. Part No.FN5045-1200-99
BrandSchaffner
MYR112,247.87
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. 739-6459
Mfr. Part No.LR3 40-4/40
BrandBlock
MYR802.59
Each
units
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 883-8165
Mfr. Part No.FN5030-25-33
BrandSchaffner
MYR4,286.69
Each
units
1000 V dc FN 5030 25A 6 → 15kHz 310 x 200 x 162mm 200mm 162mm 310mm +100°C -25°C
RS Stock No. 739-6440
Mfr. Part No.LR3 40-4/35
BrandBlock
MYR896.38
Each
units
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 866-1852
Mfr. Part No.3AFU400-010
BrandFUSS-EMV
MYR923.75
Each
units
3 x 500 V ac 3AFU400 10A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 866-1868
Mfr. Part No.3AFU400-080
BrandFUSS-EMV
MYR2,229.58
Each
units
3 x 500 V ac 3AFU400 80A - 220 x 214 x 540mm 214mm 540mm 220mm +40°C -
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