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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Description Price Maximum Voltage Rating Series Maximum Current Rating Switching Frequency Dimensions Depth Height Length Maximum Operating Temperature Minimum Operating Temperature
RS庫存編號 739-6428
製造零件編號LR3 40-4/8
BrandBlock
HK$580.83
單位
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS庫存編號 739-6440
製造零件編號LR3 40-4/35
BrandBlock
HK$1,730.00
單位
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS庫存編號 883-8311
製造零件編號FN530-16-99
BrandSchaffner
HK$11,393.34
單位
850 V dc FN 530 16A 6 → 20kHz 350 x 140 x 230mm 140mm 230mm 350mm +100°C -25°C
RS庫存編號 883-8184
製造零件編號FN5040-180-99
BrandSchaffner
HK$32,799.15
單位
500 V ac FN 5040 180A 3 (Min)kHz 450 x 240 x 385mm 240mm 385mm 450mm +70°C -25°C
RS庫存編號 739-6395
製造零件編號MR3 400/18
BrandBlock
HK$1,010.00
單位
690 V ac MR3 18A 8kHz 120 x 140 x 140mm 140mm 140mm 120mm +40°C -10°C
RS庫存編號 866-1818
製造零件編號3ACMF400-080.060
BrandFUSS-EMV
HK$15,882.24
單位
3 x 500 V ac 3ACMF400 80A - 290 x 370 x 160mm 160mm 290mm 370mm +40°C -
RS庫存編號 883-8204
製造零件編號FN5040-75-87
BrandSchaffner
HK$14,180.32
單位
500 V ac FN 5040 75A 3 (Min)kHz 300 x 240 x 373mm 240mm 373mm 300mm +70°C -25°C
RS庫存編號 883-8165
製造零件編號FN5030-25-33
BrandSchaffner
HK$9,234.01
單位
1000 V dc FN 5030 25A 6 → 15kHz 310 x 200 x 162mm 200mm 162mm 310mm +100°C -25°C
RS庫存編號 883-8147
製造零件編號FN5020-120-35
BrandSchaffner
HK$31,143.41
單位
1000 V dc FN 5020 120A 6 → 15kHz 799 x 343 x 280mm 343mm 280mm 799mm +100°C -25°C
RS庫存編號 866-1830
製造零件編號3AFS400-035 IG
BrandFUSS-EMV
HK$5,898.24
單位
3 x 500 V ac 3AFS400 35A - 270 x 235 x 300mm 235mm 300mm 270mm +40°C -
RS庫存編號 866-1846
製造零件編號3AFS400-125
BrandFUSS-EMV
HK$18,851.84
單位
3 x 500 V ac 3AFS400 125A - 360 x 350 x 340mm 350mm 340mm 360mm +40°C -
RS庫存編號 883-8169
製造零件編號FN5030-55-34
BrandSchaffner
HK$17,405.86
單位
1000 V dc FN 5030 55A 6 → 15kHz 354 x 250 x 200mm 250mm 200mm 354mm +100°C -25°C
RS庫存編號 739-6452
製造零件編號LR3 40-4/45
BrandBlock
HK$1,800.00
單位
690 V ac LR3 45A - 185 x 112 x 210mm 112mm 210mm 185mm +40°C -10°C
RS庫存編號 739-6406
製造零件編號MR3 400/42
BrandBlock
HK$1,630.00
單位
690 V ac MR3 42A 8kHz 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS庫存編號 883-8229
製造零件編號FN5045-115-35
BrandSchaffner
HK$20,065.88
單位
500 V ac FN 5045 115A 3 (Min)kHz 615 x 370 x 203mm 370mm 203mm 615mm +70°C -25°C
RS庫存編號 883-8260
製造零件編號FN5045-75-35
BrandSchaffner
HK$18,304.24
單位
500 V ac FN 5045 75A 3 (Min)kHz 615 x 370 x 203mm 370mm 203mm 615mm +70°C -25°C
RS庫存編號 883-8257
製造零件編號FN5045-480-99
BrandSchaffner
HK$69,185.98
單位
500 V ac FN 5045 480A 3 (Min)kHz 780 x 534 x 500mm 534mm 500mm 780mm +70°C -25°C
RS庫存編號 702-4050
製造零件編號B84143V16R127
BrandEpcos
HK$8,160.00
單位
520 V ac - 16A 8kHz - - - - - -
RS庫存編號 866-1864
製造零件編號3AFU400-035
BrandFUSS-EMV
HK$3,256.32
單位
3 x 500 V ac 3AFU400 35A - 220 x 192 x 290mm 192mm 290mm 220mm +40°C -
RS庫存編號 866-1802
製造零件編號3AFSAP400-035.060
BrandFUSS-EMV
HK$10,393.60
單位
3 x 500 V ac 3AFSAP400 35A - 245 x 230 x 399mm 230mm 399mm 245mm +40 (without power derating) °C, +60 (with power derating) °C -20 (without power derating) °C, +40 (with power derating) °C