Power Factor Correction Capacitors

The power factor of a circuit, for individual equipment or for a larger power supply, is the measure used to determine the efficiency of the circuit. It is calculated using the real power (kW) and reactive power (kVAr) of a circuit, with the real power being that which is actually used to complete the task at hand and the reactive power being that which does not contribute to the task. The higher the power factor (between 0 and 1), the more efficient the circuit, with anything above 0.95 being considered highly efficient. For larger-scale circuits with a higher power load, such as a building's power supply, having a higher power factor results in lower excess charges from power suppliers.

What are power factor correction capacitors?

Power factor correction capacitors are used to increase the power factor of a circuit, bringing the measure closer to 1 and making the system more efficient. Capacitors are used when a lagging current - which is often found in inductive load circuits such as AC induction motors, arc welders, fluorescent lighting and air conditioning - causes the current and voltage to fall out of phase with each other and therefore generates more reactive power. Capacitors correct these variations in current and voltage input, bringing the two back to being closer in phase and improving the efficiency.

RS Components offer a range of power factor correction capacitors from industry-leading brands, including EPCOS, KEMET, Vishay and Wurth Elektronik.

Why is power factor correction important?

Power factor correction has many benefits on both the electrical systems being supplied and the bill payers. By bringing the efficiency up and reducing reactive power, grid instability can be reduced, as can costs. By reducing the reactive power generated in a system or piece of equipment, general power consumption will also decrease and this in turn leads to cost savings. Electricity bills for larger companies and factories can include additional charges, including capacitor charges and reactive power charges, which will also come down when power factor correction equipment is applied.


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Description Price Voltage kvar 50Hz kvar 60Hz Number of Phases Capacitance Dielectric Material Mounting Type Series Length Width Height Minimum Operating Temperature Maximum Operating Temperature Tolerance Minus
RS庫存編號 135-3608
製造零件編號GLI 700-230 B
BrandVishay
TWD9,671.30
個 (以毎盒:4)
單位
700V dc - - - 230µF - Plug In GLI - - 68mm -40°C +80°C -
RS庫存編號 187-5374
製造零件編號PhMKP525.3.25,00-S84
BrandVishay
TWD9,465.80
個 (以毎盒:4)
單位
525V ac 25kvar - 3 3 x 96.2µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS庫存編號 135-3613
製造零件編號PhMKP400.3.20,00-A84
BrandVishay
TWD5,676.00
單位
400V ac - - - 3 x 132.6µF - Screw Mount phMKP - - 265mm - +65°C -
RS庫存編號 135-3609
製造零件編號GLI 900-100 I
BrandVishay
TWD7,089.50
個 (以毎盒:4)
單位
900V dc - - - 100µF - Plug In GLI - - 56mm -40°C +80°C -
RS庫存編號 135-3611
製造零件編號GLI 1450-40 I
BrandVishay
TWD6,474.80
個 (以毎盒:4)
單位
1.45kV dc - - - 40µF - Plug In GLI - - 56mm -40°C +80°C -
RS庫存編號 135-3596
製造零件編號PhMKP400.3.20,00-A84
BrandVishay
TWD3,215.00
個 (以毎盒:4)
單位
400V ac - - - 3 x 132.6µF - Screw Mount phMKP - - 265mm - +65°C -
RS庫存編號 135-3621
製造零件編號HDMKP 2.0-390 I
BrandVishay
TWD13,555.00
單位
2kV dc - - - 390µF - Plug In HDMKP - - 235mm -40°C +80°C -
RS庫存編號 135-3599
製造零件編號PhMKP440.3.28,10-A84
BrandVishay
TWD6,490.00
個 (以毎盒:4)
單位
440V ac - - - 3 x 154µF - Screw Mount phMKP - - 265mm - +65°C -
RS庫存編號 135-3603
製造零件編號PhMKP660.3.22,90-A84
BrandVishay
TWD4,706.30
個 (以毎盒:4)
單位
660V ac - - - 3 x 55.8µF - Screw Mount phMKP - - 340mm - +65°C -
RS庫存編號 135-3623
製造零件編號GLI 700-230 B
BrandVishay
TWD10,638.00
單位
700V dc - - - 230µF - Plug In GLI - - 68mm -40°C +80°C -
RS庫存編號 187-5375
製造零件編號PhMKP660.3.22,90-S84
BrandVishay
TWD10,631.50
個 (以毎盒:4)
單位
660V ac 22.9kvar - 3 3 x 55.8µF Polypropylene Stud Mount PhMKP - 88.2mm 340mm - +65°C -5%
RS庫存編號 187-5369
製造零件編號PhMKP400.3.25,00-S84
BrandVishay
TWD10,718.50
個 (以毎盒:4)
單位
400V ac 25kvar - 3 3 x 165.8µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS庫存編號 135-3610
製造零件編號GLI 900-150 A
BrandVishay
TWD4,268.30
個 (以毎盒:4)
單位
900V dc - - - 150µF - Plug In GLI - - 68mm -40°C +80°C -
RS庫存編號 135-3602
製造零件編號PhMKP525.3.25,00-A84
BrandVishay
TWD5,834.00
個 (以毎盒:4)
單位
525V ac - - - 3 x 96.2µF Polypropylene Screw Mount phMKP - - 265mm - +65°C -5%
RS庫存編號 135-3627
製造零件編號GLI 900-150 A
BrandVishay
TWD5,316.00
單位
900V dc - - - 150µF - Plug In GLI - - 68mm -40°C +80°C -
RS庫存編號 187-5381
製造零件編號PhMKP400.3.25,00-S84
BrandVishay
TWD6,920.00
單位
400V ac 25kvar - 3 3 x 165.8µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS庫存編號 135-3605
製造零件編號HDMKP 1.1-420 I
BrandVishay
TWD5,719.00
個 (以毎盒:4)
單位
1.1kV dc - - - 420µF - Plug In HDMKP - - - -40°C +80°C -
RS庫存編號 187-5367
製造零件編號PhMKP400.3.12,50-S64
BrandVishay
TWD6,577.10
個 (以毎盒:9)
單位
400V ac 12.5kvar - 3 3 x 82.9µF Polypropylene Stud Mount PhMKP - 67.6mm 265mm - +65°C -5%
RS庫存編號 187-5371
製造零件編號PhMKP440.3.28,10-S84
BrandVishay
TWD10,440.00
個 (以毎盒:4)
單位
440V ac 28.1kvar - 3 3 x 154µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS庫存編號 187-5383
製造零件編號PhMKP440.3.25,00-S84
BrandVishay
TWD6,442.00
單位
440V ac 25kvar - 3 3 x 137µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%