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.


...
Read more Read less

Filters

Viewing 1 - 20 of 77 products
Results per page
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 Stock No. 136-6319
Mfr. Part No.B25675A4052J015
BrandEPCOS
MYR449.51
Each
units
415V ac 5kvar 6kvar - 3 x 30.8µF - Stud Mount MKK - - 164mm -40°C +60°C -5%
RS Stock No. 136-6306
Mfr. Part No.B25675A4252J040
BrandEPCOS
MYR843.54
Each
units
440V ac 25kvar 30kvar - 3 x 137µF - Stud Mount MKK - - 192mm -40°C +60°C -5%
RS Stock No. 136-6325
Mfr. Part No.B25675A4252J015
BrandEPCOS
MYR550.82
Each
units
415V ac 25kvar 30kvar - 3 x 154µF - Stud Mount MKK - - 192mm -40°C +60°C -5%
RS Stock No. 192-3551
Mfr. Part No.B25161L0025M000
BrandEPCOS
MYR4,822.604
Each (In a Box of 10)
units
12kV ac - - 1 250nF Polypropylene Stud Mount MV APP 250mm 115mm 425mm -25°C - -
RS Stock No. 136-4923
Mfr. Part No.B25675A4282J140
BrandEPCOS
MYR745.868
Each (In a Box of 4)
units
440V ac 28.1kvar - - 3 x 154µF - Stud Mount MKK - - 207mm -40°C +60°C -5%
RS Stock No. 192-3565
Mfr. Part No.B25161T0012M000
BrandEPCOS
MYR5,539.064
Each (In a Box of 10)
units
40kV ac - - 1 125nF Polypropylene Stud Mount MV APP 250mm 120mm 945mm -25°C - -
RS Stock No. 192-3563
Mfr. Part No.B25161S0050M000
BrandEPCOS
MYR7,824.309
Each (In a Box of 10)
units
36kV ac - - 1 500nF Polypropylene Stud Mount MV APP 350mm 160mm 985mm -25°C - -
RS Stock No. 136-6307
Mfr. Part No.B25675A4122J500
BrandEPCOS
MYR587.87
Each
units
400V ac 12.5kvar 15kvar - 3 x 82.9µF - Stud Mount MKK - - 200mm -40°C +60°C -5%
RS Stock No. 192-3544
Mfr. Part No.B25161G0025O000
BrandEPCOS
MYR4,868.982
Each (In a Box of 10)
units
7.2kV ac - - 3 250nF Polypropylene Stud Mount MV APP 390mm 115mm 415mm -25°C - -
RS Stock No. 136-6310
Mfr. Part No.B25675A4152J000
BrandEPCOS
MYR553.96
Each
units
400V ac 15kvar 18kvar - 3 x 99.5µF - Stud Mount MKK - - 218mm -40°C +60°C -5%
RS Stock No. 192-3574
Mfr. Part No.B32305A4282B140
BrandEPCOS
MYR895.475
Each (In a Box of 4)
units
440V ac - - 3 154µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS Stock No. 192-3539
Mfr. Part No.B25161C0025M000
BrandEPCOS
MYR2,009.417
Each (In a Box of 10)
units
3.6kV ac - - 1 250nF Polypropylene Stud Mount MV APP 175mm 115mm 290mm -25°C - -
RS Stock No. 192-3546
Mfr. Part No.B25161G0050O000
BrandEPCOS
MYR5,296.92
Each (In a Box of 10)
units
7.2kV ac - - 3 500nF Polypropylene Stud Mount MV APP 390mm 115mm 490mm -25°C - -
RS Stock No. 192-3562
Mfr. Part No.B25161S0025M000
BrandEPCOS
MYR5,539.064
Each (In a Box of 10)
units
36kV ac - - 1 250nF Polypropylene Stud Mount MV APP 350mm 120mm 835mm -25°C - -
RS Stock No. 136-4927
Mfr. Part No.B25675A4152J080
BrandEPCOS
MYR532.438
Each (In a Box of 6)
units
480V ac 15kvar 18kvar - 3 x 69.1µF - Stud Mount MKK - - 207mm -40°C +60°C -5%
RS Stock No. 192-3581
Mfr. Part No.B32305A5332B025
BrandEPCOS
MYR1,019.038
Each (In a Box of 4)
units
525V ac - - 3 127µF Polypropylene Stud Mount MKD - 136 Dia.mm 245mm -40°C +65°C -5%
RS Stock No. 136-4920
Mfr. Part No.B25675A4122J540
BrandEPCOS
MYR532.447
Each (In a Box of 9)
units
440V ac 12.5kvar 15kvar - 3 x 68.5µF - Stud Mount MKK - - 200mm -40°C +60°C -5%
RS Stock No. 136-4924
Mfr. Part No.B25675A4302J040
BrandEPCOS
MYR859.62
Each (In a Box of 4)
units
440V ac 30kvar - - 3 x 164.4µF - Stud Mount MKK - - 192mm -40°C +60°C -5%
RS Stock No. 192-3564
Mfr. Part No.B25161T0010M000
BrandEPCOS
MYR5,131.744
Each (In a Box of 10)
units
40kV ac - - 1 100nF Polypropylene Stud Mount MV APP 250mm 120mm 870mm -25°C - -
RS Stock No. 192-3577
Mfr. Part No.B32305A4332B080
BrandEPCOS
MYR1,040.788
Each (In a Box of 4)
units
480V ac - - 3 152µF Polypropylene Stud Mount MKD - 136 Dia.mm 230mm -40°C +65°C -5%