Power Factor Correction Capacitors | PFC | RS
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    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 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.

    141 Products showing for Power Factor Correction Capacitors

    Schneider Electric
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    68kvar
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    Schneider Electric
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    50kvar
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    Schneider Electric
    Yes
    Green Premium
    -
    -
    -
    -
    -
    -
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    3
    VarPlusCAN
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    400V ac
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    12.5kvar
    15kvar
    Schneider Electric
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    -
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    41.7kvar
    50kvar
    Vishay
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    3 x 55.8µF
    Polypropylene
    340mm
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    +65°C
    -
    Screw Mount
    3
    phMKP
    -5%
    525V ac
    84.4mm
    22.9kvar
    25kvar
    KEMET
    -
    -
    3 x 137µF
    Polypropylene
    280mm
    -
    +55°C
    -25°C
    Stud Mount
    3
    C9T
    -5%
    440V ac
    85mm
    25kvar
    -
    KEMET
    -
    -
    3 x 137µF
    Polypropylene
    280mm
    -
    +55°C
    -25°C
    Stud Mount
    3
    C9T
    -5%
    440V ac
    75mm
    25kvar
    -
    Schneider Electric
    -
    -
    -
    -
    -
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    -
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    -
    -
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    37.7kvar
    45.2kvar
    Schneider Electric
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    57.1kvar
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    Wurth Elektronik
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    10nF
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    11mm
    13mm
    +105°C
    -40°C
    Through Hole
    -
    WCAP-FTX2
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    275V ac
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    -
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    KEMET
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    -
    3 x 27.4µF
    Polypropylene
    160mm
    -
    +55°C
    -25°C
    Stud Mount
    3
    C9T
    -5%
    440V ac
    75mm
    5kvar
    -
    KEMET
    -
    -
    3 x 27.4µF
    Polypropylene
    160mm
    -
    +55°C
    -25°C
    Stud Mount
    3
    C9T
    -5%
    440V ac
    75mm
    5kvar
    -
    EPCOS
    -
    -
    3 x 137µF
    Polypropylene
    192mm
    -
    +60°C
    -40°C
    Stud Mount
    3
    MKK
    -5%
    440V ac
    116mm
    25kvar
    30kvar
    Schneider Electric
    Yes
    Green Premium
    -
    -
    -
    -
    -
    -
    -
    3
    VarPlusCAN
    -
    480V ac
    -
    15.5kvar
    18.6kvar
    EPCOS
    -
    -
    3 x 137µF
    Polypropylene
    192mm
    -
    +60°C
    -40°C
    Stud Mount
    3
    MKK
    -5%
    440V ac
    116mm
    25kvar
    30kvar
    Schneider Electric
    Yes
    Green Premium
    -
    -
    -
    -
    -
    -
    -
    3
    VarPlusCAN
    -
    400V ac
    -
    5kvar
    6kvar
    EPCOS
    -
    -
    3 x 30.8µF
    Polypropylene
    164mm
    -
    +60°C
    -40°C
    Stud Mount
    3
    MKK
    -5%
    415V ac
    75mm
    5kvar
    6kvar
    KEMET
    -
    -
    3 x 83µF
    Polypropylene
    230mm
    -
    +55°C
    -25°C
    Stud Mount
    3
    C9T
    -5%
    440V ac
    85mm
    15kvar
    -
    Schneider Electric
    Yes
    Green Premium
    -
    -
    -
    -
    -
    -
    -
    3
    VarPlusCAN
    -
    480V ac
    -
    17kvar
    20.4kvar
    EPCOS
    -
    -
    3 x 198.9µF
    Polypropylene
    224mm
    -
    +60°C
    -40°C
    Stud Mount
    3
    MKK
    -5%
    400V ac
    116mm
    30kvar
    -
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