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
HK$1,451.46
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. 866-1808
Mfr. Part No.3AFSAP400-016.060
BrandFUSS-EMV
HK$10,510.84
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. 739-6392
Mfr. Part No.MR3 400/13
BrandBlock
HK$697.00
Each
units
690 V ac MR3 13A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS Stock No. 883-8197
Mfr. Part No.FN5040-62-86
BrandSchaffner
HK$13,561.22
Each
units
500 V ac FN 5040 62A 3 (Min)kHz 300 x 186 x 373mm 186mm 373mm 300mm +70°C -25°C
RS Stock No. 883-8200
Mfr. Part No.FN5040-750-99
BrandSchaffner
HK$109,055.59
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. 883-8241
Mfr. Part No.FN5045-38-33
BrandSchaffner
HK$11,043.84
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. 866-1858
Mfr. Part No.3AFU400-006
BrandFUSS-EMV
HK$2,161.59
Each
units
3 x 500 V ac 3AFU400 6A - 70 x 142 x 245mm 142mm 245mm 70mm +40°C -
RS Stock No. 739-6395
Mfr. Part No.MR3 400/18
BrandBlock
HK$853.91
Each
units
690 V ac MR3 18A 8kHz 120 x 140 x 140mm 140mm 140mm 120mm +40°C -10°C
RS Stock No. 739-6465
Mfr. Part No.LR3 40-4/63
BrandBlock
HK$2,131.73
Each
units
690 V ac LR3 63A - 185 x 122 x 210mm 122mm 210mm 185mm +40°C -10°C
RS Stock No. 739-6377
Mfr. Part No.MR3 400/4
BrandBlock
HK$501.50
Each
units
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS Stock No. 866-1833
Mfr. Part No.3AFS400-010 IG
BrandFUSS-EMV
HK$4,005.14
Each
units
3 x 500 V ac 3AFS400 10A - 165 x 160 x 250mm 160mm 250mm 165mm +40°C -
RS Stock No. 739-6364
Mfr. Part No.SFB 400/16,5
BrandBlock
HK$3,587.83
Each
units
520 V ac SFB 16.5A 8kHz 160 x 190 x 185mm 190mm 185mm 160mm +40°C -
RS Stock No. 866-1827
Mfr. Part No.3ACMF400-100.060
BrandFUSS-EMV
HK$20,216.20
Each
units
3 x 500 V ac 3ACMF400 100A - - - - - - -
RS Stock No. 739-6424
Mfr. Part No.LR3 40-4/6
BrandBlock
HK$440.69
Each
units
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS Stock No. 739-6440
Mfr. Part No.LR3 40-4/35
BrandBlock
HK$1,603.91
Each
units
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 883-8232
Mfr. Part No.FN5045-260-99
BrandSchaffner
HK$37,951.32
Each
units
500 V ac FN 5045 260A 3 (Min)kHz 650 x 500 x 400mm 500mm 400mm 650mm +70°C -25°C
RS Stock No. 739-6430
Mfr. Part No.LR3 40-4/16
BrandBlock
HK$668.16
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
HK$1,212.99
Each
units
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS Stock No. 883-8171
Mfr. Part No.FN5040-115-87
BrandSchaffner
HK$18,608.31
Each
units
500 V ac FN 5040 115A 3 (Min)kHz 300 x 236 x 257mm 236mm 257mm 300mm +70°C -25°C
RS Stock No. 739-6406
Mfr. Part No.MR3 400/42
BrandBlock
HK$1,157.25
Each
units
690 V ac MR3 42A 8kHz 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
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