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. 135-3617
FabrikantnummerHDMKP 1.1-420 I
FabrikantVishay
€ 156,04
Each
Aantal stuks
1.1kV dc - - - 420µF - Plug In HDMKP - - - -40°C +80°C -
RS-stocknr. 135-3614
FabrikantnummerPhMKP400.3.25,00-A84
FabrikantVishay
€ 181,25
Each
Aantal stuks
400V ac - - - 3 x 165.8µF - Screw Mount phMKP - - 265mm - +65°C -
RS-stocknr. 187-5372
FabrikantnummerPhMKP525.3.12,50-S84
FabrikantVishay
€ 167,61
Each (In a Box of 4)
Aantal stuks
525V ac 12.5kvar - 3 3 x 48.1µF Polypropylene Stud Mount PhMKP - 88.2mm 190mm - +65°C -5%
RS-stocknr. 135-3627
FabrikantnummerGLI 900-150 A
FabrikantVishay
€ 116,46
Each
Aantal stuks
900V dc - - - 150µF - Plug In GLI - - 68mm -40°C +80°C -
RS-stocknr. 187-5370
FabrikantnummerPhMKP440.3.25,00-S84
FabrikantVishay
€ 245,81
Each (In a Box of 4)
Aantal stuks
440V ac 25kvar - 3 3 x 137µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS-stocknr. 192-3580
FabrikantnummerB32305A5282B025
FabrikantEPCOS
€ 140,453
Each (In a Box of 4)
Aantal stuks
525V ac - - 3 108µF Polypropylene Stud Mount MKD - 136 Dia.mm 230mm -40°C +65°C -5%
RS-stocknr. 192-3582
FabrikantnummerB32305A5372B025
FabrikantEPCOS
€ 181,508
Each (In a Box of 4)
Aantal stuks
525V ac - - 3 143µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS-stocknr. 192-3583
FabrikantnummerB32305A8352B050
FabrikantEPCOS
€ 172,78
Each (In a Box of 4)
Aantal stuks
850V ac - - 3 51µF Polypropylene Stud Mount MKD - 136 Dia.mm 230mm -40°C +65°C -5%
RS-stocknr. 136-4924
FabrikantnummerB25675A4302J040
FabrikantEPCOS
€ 138,143
Each (In a Box of 4)
Aantal stuks
440V ac 30kvar - - 3 x 164.4µF - Stud Mount MKK - - 192mm -40°C +60°C -5%
RS-stocknr. 136-5110
FabrikantnummerC9TS5MD5920AARX
FabrikantKEMET
€ 54,527
Each (In a Box of 9)
Aantal stuks
415V ac - - - 3 x 92.2µF - Stud Mount C9T - - 230mm -25°C +55°C -
RS-stocknr. 136-4916
FabrikantnummerB25675A4052J015
FabrikantEPCOS
€ 60,713
Each (In a Box of 6)
Aantal stuks
415V ac 5kvar 6kvar - 3 x 30.8µF - Stud Mount MKK - - 164mm -40°C +60°C -5%
RS-stocknr. 135-3621
FabrikantnummerHDMKP 2.0-390 I
FabrikantVishay
€ 349,04
Each
Aantal stuks
2kV dc - - - 390µF - Plug In HDMKP - - 235mm -40°C +80°C -
RS-stocknr. 187-5374
FabrikantnummerPhMKP525.3.25,00-S84
FabrikantVishay
€ 233,233
Each (In a Box of 4)
Aantal stuks
525V ac 25kvar - 3 3 x 96.2µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%
RS-stocknr. 136-5129
FabrikantnummerC9TS6MD6137AARX
FabrikantKEMET
€ 67,92
Each
Aantal stuks
440V ac - - - 3 x 137µF - Stud Mount C9T - - 280mm -25°C +55°C -
RS-stocknr. 136-4934
FabrikantnummerB25669A5467J375
FabrikantEPCOS
€ 241,675
Each (In a Box of 2)
Aantal stuks
525V ac 40kvar 48kvar - 3 x 154µF - Stud Mount MKK - - 355mm -40°C +55°C -5%
RS-stocknr. 187-5381
FabrikantnummerPhMKP400.3.25,00-S84
FabrikantVishay
€ 199,70
Each
Aantal stuks
400V ac 25kvar - 3 3 x 165.8µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°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. 136-5105
FabrikantnummerC9TS5MD5311AARX
FabrikantKEMET
€ 39,359
Each (In a Box of 12)
Aantal stuks
415V ac - - - 3 x 31.1µF - Stud Mount C9T - - 160mm -25°C +55°C -
RS-stocknr. 136-6319
FabrikantnummerB25675A4052J015
FabrikantEPCOS
€ 95,12
Each
Aantal stuks
415V ac 5kvar 6kvar - 3 x 30.8µF - Stud Mount MKK - - 164mm -40°C +60°C -5%
RS-stocknr. 187-5389
FabrikantnummerPhMKP525.3.20,00-S84
FabrikantVishay
€ 252,64
Each
Aantal stuks
525V ac 20kvar - 3 3 x 77µF Polypropylene Stud Mount PhMKP - 88.2mm 265mm - +65°C -5%