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 739-6446
製造零件編號LR3 40-4/30
BrandBlock
HK$1,504.60
單位
690 V ac LR3 30A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS庫存編號 739-6434
製造零件編號LR3 40-4/20
BrandBlock
HK$674.72
單位
690 V ac LR3 20A - 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS庫存編號 739-6377
製造零件編號MR3 400/4
BrandBlock
HK$490.81
單位
690 V ac MR3 4A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS庫存編號 739-6406
製造零件編號MR3 400/42
BrandBlock
HK$1,157.25
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 739-6395
製造零件編號MR3 400/18
BrandBlock
HK$853.91
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 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 739-6424
製造零件編號LR3 40-4/6
BrandBlock
HK$440.69
單位
690 V ac LR3 6A - 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS庫存編號 739-6409
製造零件編號MR3 400/30
BrandBlock
HK$1,233.57
單位
690 V ac MR3 30A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS庫存編號 739-6437
製造零件編號LR3 40-4/10
BrandBlock
HK$557.01
單位
690 V ac LR3 10A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS庫存編號 739-6428
製造零件編號LR3 40-4/8
BrandBlock
HK$410.46
單位
690 V ac LR3 8A - 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS庫存編號 739-6383
製造零件編號MR3 400/10
BrandBlock
HK$669.77
單位
690 V ac MR3 10A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS庫存編號 739-6459
製造零件編號LR3 40-4/40
BrandBlock
HK$1,255.98
單位
690 V ac LR3 40A - 185 x 102 x 210mm 102mm 210mm 185mm +40°C -10°C
RS庫存編號 739-6443
製造零件編號LR3 40-4/25
BrandBlock
HK$1,212.99
單位
690 V ac LR3 25A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS庫存編號 739-6402
製造零件編號MR3 400/37
BrandBlock
HK$1,238.40
單位
690 V ac MR3 37A 8kHz 155 x 95 x 162mm 95mm 162mm 155mm +40°C -10°C
RS庫存編號 739-6389
製造零件編號MR3 400/8
BrandBlock
HK$506.90
單位
690 V ac MR3 8A 8kHz 96 x 69 x 117mm 69mm 117mm 96mm +40°C -10°C
RS庫存編號 739-6430
製造零件編號LR3 40-4/16
BrandBlock
HK$668.16
單位
690 V ac LR3 16A - 120 x 95 x 140mm 95mm 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$1,603.91
單位
690 V ac LR3 35A - 155 x 110 x 177mm 110mm 177mm 155mm +40°C -10°C
RS庫存編號 739-6373
製造零件編號MR3 400/2,5
BrandBlock
HK$360.00
單位
690 V ac MR3 2.5A 8kHz 78 x 63 x 100mm 63mm 100mm 78mm +40°C -10°C
RS庫存編號 739-6392
製造零件編號MR3 400/13
BrandBlock
HK$692.53
單位
690 V ac MR3 13A 8kHz 120 x 85 x 140mm 85mm 140mm 120mm +40°C -10°C
RS庫存編號 739-6421
製造零件編號LR3 40-4/4
BrandBlock
HK$294.14
單位
690 V ac LR3 4A - 96 x 60 x 117mm 60mm 117mm 96mm +40°C -10°C