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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Omschrijving Prijs 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-stocknr. 192-3549
FabrikantnummerB25161L0012M000
FabrikantEPCOS
€ 378,209
Each (In a Box of 10)
Aantal stuks
3.6kV ac - - 1 125nF Polypropylene Stud Mount MV APP 200mm 115mm 375mm -25°C - -
RS-stocknr. 192-3546
FabrikantnummerB25161G0050O000
FabrikantEPCOS
€ 848,544
Each (In a Box of 10)
Aantal stuks
7.2kV ac - - 3 500nF Polypropylene Stud Mount MV APP 390mm 115mm 490mm -25°C - -
RS-stocknr. 136-4922
FabrikantnummerB25675A4252J040
FabrikantEPCOS
€ 120,283
Each (In a Box of 4)
Aantal stuks
440V ac 25kvar 30kvar - 3 x 137µF - Stud Mount MKK - - 192mm -40°C +60°C -5%
RS-stocknr. 187-5393
FabrikantnummerPhMKP660.3.22,90-S84
FabrikantVishay
€ 204,30
Each
Aantal stuks
660V ac 22.9kvar - 3 3 x 55.8µF Polypropylene Stud Mount PhMKP - 88.2mm 340mm - +65°C -5%
RS-stocknr. 187-5391
FabrikantnummerPhMKP525.3.25,00-S84
FabrikantVishay
€ 176,70
Each
Aantal stuks
525V ac 25kvar - 3 3 x 96.2µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS-stocknr. 192-3574
FabrikantnummerB32305A4282B140
FabrikantEPCOS
€ 140,453
Each (In a Box of 4)
Aantal stuks
440V ac - - 3 154µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS-stocknr. 192-3575
FabrikantnummerB32305A4302B040
FabrikantEPCOS
€ 151,928
Each (In a Box of 4)
Aantal stuks
440V ac - - 3 165µF Polypropylene Stud Mount MKD - 136 Dia.mm 275mm -40°C +65°C -5%
RS-stocknr. 192-3581
FabrikantnummerB32305A5332B025
FabrikantEPCOS
€ 163,245
Each (In a Box of 4)
Aantal stuks
525V ac - - 3 127µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS-stocknr. 136-6308
FabrikantnummerB25675A5152J025
FabrikantEPCOS
€ 89,61
Each
Aantal stuks
525V ac 15kvar 18kvar - 3x 57.7µF - Stud Mount MKK - - 218mm -40°C +60°C -5%
RS-stocknr. 135-3603
FabrikantnummerPhMKP660.3.22,90-A84
FabrikantVishay
€ 119,513
Each (In a Box of 4)
Aantal stuks
660V ac - - - 3 x 55.8µF - Screw Mount phMKP - - 340mm - +65°C -
RS-stocknr. 136-6316
FabrikantnummerB25675A4302J000
FabrikantEPCOS
€ 148,31
Each
Aantal stuks
400V ac 30kvar - - 3 x 198.9µF - Stud Mount MKK - - 224mm -40°C +60°C -5%
RS-stocknr. 192-3576
FabrikantnummerB32305A4302B080
FabrikantEPCOS
€ 151,928
Each (In a Box of 4)
Aantal stuks
480V ac - - 3 138µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS-stocknr. 136-5136
FabrikantnummerC9TS5MD6108AARX
FabrikantKEMET
€ 56,60
Each
Aantal stuks
415V ac - - - 3 x 108µF - Stud Mount C9T - - 280mm -25°C +55°C -5%
RS-stocknr. 192-3554
FabrikantnummerB25161L0050O000
FabrikantEPCOS
€ 1.035,224
Each (In a Box of 10)
Aantal stuks
12kV ac - - 3 500nF Polypropylene Stud Mount MV APP 470mm 115mm 600mm -25°C - -
RS-stocknr. 192-3570
FabrikantnummerB32305A4252B040
FabrikantEPCOS
€ 135,28
Each (In a Box of 4)
Aantal stuks
440V ac - - 3 137µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS-stocknr. 136-5139
FabrikantnummerC9TS6MD5274AARX
FabrikantKEMET
€ 41,67
Each
Aantal stuks
440V ac - - - 3 x 27.4µF - Stud Mount C9T - - 160mm -25°C +55°C -5%
RS-stocknr. 136-5125
FabrikantnummerC9TS6MD5830AARX
FabrikantKEMET
€ 55,56
Each
Aantal stuks
440V ac - - - 3 x 83µF - Stud Mount C9T - - 230mm -25°C +55°C -
RS-stocknr. 192-3550
FabrikantnummerB25161L0012O000
FabrikantEPCOS
€ 378,209
Each (In a Box of 10)
Aantal stuks
12kV ac - - 3 125nF Polypropylene Stud Mount MV APP 470mm 115mm 400mm -25°C - -
RS-stocknr. 136-4927
FabrikantnummerB25675A4152J080
FabrikantEPCOS
€ 83,512
Each (In a Box of 6)
Aantal stuks
480V ac 15kvar 18kvar - 3 x 69.1µF - Stud Mount MKK - - 207mm -40°C +60°C -5%
RS-stocknr. 135-3613
FabrikantnummerPhMKP400.3.20,00-A84
FabrikantVishay
€ 125,00
Each
Aantal stuks
400V ac - - - 3 x 132.6µF - Screw Mount phMKP - - 265mm - +65°C -