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. 739-6386
Mfr. Part No.MR3 400/6
BrandBlock
MYR311.56
Each
units
690 V ac MR3 6A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6389
Mfr. Part No.MR3 400/8
BrandBlock
MYR294.16
Each
units
690 V ac MR3 8A 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
MYR284.82
Each
units
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6443
Mfr. Part No.LR3 40-4/25
BrandBlock
MYR751.51
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 111-5328
Mfr. Part No.B84143V0066R227
BrandEPCOS
MYR4,267.86
Each
units
520 V ac B84143V 66A - 480 x 176 x 430mm 176mm 430mm 480mm - -
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
MYR413.96
Each
units
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6373
Mfr. Part No.MR3 400/2,5
BrandBlock
MYR223.04
Each
units
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
MYR225.98
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 754-6095
Mfr. Part No.FN5040-10-83
BrandSchaffner
MYR2,601.66
Each
units
500 V ac FN5040 10A 16kHz 155 x 94 x 208mm 94mm 208mm 155mm +70°C -25°C
RS Stock No. 754-6099
Mfr. Part No.FN5040-17-83
BrandSchaffner
MYR2,083.00
Each
units
500 V ac FN5040 17A 16kHz 190 x 115 x 224mm 115mm 224mm 190mm +70°C -25°C
RS Stock No. 754-6109
Mfr. Part No.FN5040-24-84
BrandSchaffner
MYR2,930.40
Each
units
500 V ac FN5040 24A 16kHz 190 x 116 x 224mm 116mm 224mm 190mm +70°C -25°C
New
RS Stock No. 213-1163
Mfr. Part No.6SL3203-0CE21-8AA0
BrandSiemens
MYR678.25
Each
units
480 V SINAMICS 22.3A - 145 x 125 x 91mm - - - - -
RS Stock No. 739-6412
Mfr. Part No.LR3 40-4/2
BrandBlock
MYR180.67
Each
units
690 V ac LR3 2A - 78 x 56 x 100mm 56mm 100mm 78mm +40°C -10°C
RS Stock No. 739-6440
Mfr. Part No.LR3 40-4/35
BrandBlock
MYR940.54
Each
units
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 739-6434
Mfr. Part No.LR3 40-4/20
BrandBlock
MYR418.02
Each
units
690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS Stock No. 739-6415
Mfr. Part No.MR3 400/48
BrandBlock
MYR937.32
Each
units
690 V ac MR3 48A 8kHz 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS Stock No. 702-4056
Mfr. Part No.B84143V0011R127
BrandEPCOS
MYR3,142.94
Each
units
520 V ac B84143V 11A 8kHz - - - - - -
RS Stock No. 866-1852
Mfr. Part No.3AFU400-010
BrandFUSS-EMV
MYR1,479.77
Each
units
3 x 500 V ac 3AFU400 10A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 883-8216
Mfr. Part No.FN5040-8-82
BrandSchaffner
MYR1,571.95
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. 739-6395
Mfr. Part No.MR3 400/18
BrandBlock
MYR495.54
Each
units
690 V ac MR3 18A 8kHz 120 x 140 x 140mm 140mm 140mm 120mm +40°C -10°C