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Motor Run Capacitors

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We offer a selection of motor run capacitors to improve single-phase AC motor running characteristics while not drawing excessive current

What is a motor run capacitor?

A motor capacitor, such as a start capacitor or run capacitor (including a dual run capacitor) is an electrical capacitor that alters the current to one or more windings of a single-phase alternating-current induction motor to create a rotating magnetic field.

There are two common types of motor capacitors: motor run capacitors and motor start capacitors.

Motor run capacitors: Some single-phase AC electric motors require a "run capacitor" to energise the second-phase winding (auxiliary coil) to create a rotating magnetic field while the motor is running.

Run capacitors are designed for continuous duty while the motor is powered, which is why electrolytic capacitors are avoided, and low-loss polymer capacitors are used. Run capacitors are mostly polypropylene film capacitors.

What does a motor run capacitor do?

A variation of the capacitor-start motor is to start the motor with a relatively large start capacitor for high starting torque, but leave a smaller value motor run capacitor in place after starting to improve running characteristics while not drawing excessive current. The additional complexity of the capacitor-run motor is justified for larger size motors.

We offer Ducati metal case (safety class S2) capacitors, labelled on the case. They have the main international certification (IMQ-VDE-UL-GOST).

The Kemet C87 series capacitors are polypropylene metallized film types with a cylindrical, aluminium can-type design filled with resin. They use faston, plastic deck or cable terminals, and an overpressure safety device.

They are self-healing and VDE, CQC, and UL810 approved, with a rated frequency of 50Hz and 60Hz. They have high capacitance density and safety device protection.

Typical applications include motor run S2 safety class: single-phase motors, low power electric motors, and compressors.

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Manufacturer Part No	Newark Part No.	Description / Manufacturer	Price for:	Price	Quantity	Capacitor Case / Package	Capacitance	Dielectric Type	Capacitance Tolerance	Capacitor Mounting	Voltage(AC)	Capacitor Terminals	dv/dt Rating	Lead Spacing	Product Range	Product Diameter	Product Height	Operating Temperature Min	Operating Temperature Max
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97F5706	13M4407 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 6 µF, ± 6%, Panel Mount, 370 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $8.92 10+ $8.57 25+ $8.20 50+ $7.73 100+ $7.47 250+ $7.31 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	6µF	Metallized PP	± 6%	Panel Mount	370V	Quick Connect	-	20.57mm	GEM III 97F5000 Series	31.75mm	53.85mm	-40°C	70°C
27L6018	13M3903 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 12 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $24.77 5+ $22.80 10+ $21.06 25+ $19.07 50+ $17.59	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	12µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	38.1mm	120.65mm	-40°C	70°C
97F8249	13M4442 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 10 µF, ± 6%, Panel Mount, 600 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $15.43	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	10µF	Metallized PP	± 6%	Panel Mount	600V	Quick Connect	-	20.57mm	GEM III 97F8200 Series	38.1mm	98.55mm	-40°C	70°C
4.16.10.03.14	05M2899 + RoHS	Motor Run Capacitor, Metallized PP, Can, 3 µF, ± 5%, 450 V DUCATI You previously purchased this product. View in Order History	Each	1+ $7.04 10+ $6.72 25+ $5.81 50+ $5.37 100+ $4.77 250+ $4.53 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	3µF	Metallized PP	± 5%	-	450V	Wire Leaded	20V/µs	-mm	4.16.10 Series	28mm	55mm	-25°C	70°C
C274ACF5120LF0J	67R8897 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 12 µF, ± 5%, Stud Mount - M8, 470 V KEMET You previously purchased this product. View in Order History	Each	1+ $11.00 10+ $9.55 25+ $9.28 50+ $8.74 100+ $7.59 250+ $7.51 500+ $7.43 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	12µF	Metallized PP	± 5%	Stud Mount - M8	470V	Wire Leaded	20V/µs	-mm	C27 Series	35mm	58.5mm	-25°C	85°C

27L6023	97F7862 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 30 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $36.50 5+ $35.16 10+ $33.91 25+ $32.33 50+ $31.16 100+ $30.72 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	30µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	50.8mm	120.65mm	-40°C	70°C

4.16.10.26.14	05M2916 Data Sheet + RoHS	Film Capacitor, 4.16.10 Series, 25 F, 5%, PP (Polypropylene), 450 VAC, Can RoHS Compliant: Yes DUCATI You previously purchased this product. View in Order History	Each	1+ $14.32 10+ $13.59 25+ $12.64 50+ $11.08 100+ $10.33 250+ $9.98 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	0	0	0	0	0	0	0	0	0	0	0	0	0	0

97F9039	13M4452 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 20 µF, ± 6%, Panel Mount, 440 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $21.81 5+ $20.71 10+ $19.66 25+ $17.80 50+ $16.20 100+ $15.86 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	20µF	Metallized PP	± 6%	Panel Mount	440V	Quick Connect	-	20.57mm	GEM III 97F9000 Series	44.45mm	98.55mm	-40°C	70°C

C274AC34500AA0J	67R8902 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 5 µF, ± 5%, Stud Mount - M8, 470 V KEMET You previously purchased this product. View in Order History	Each	1+ $4.00 10+ $3.41 25+ $3.28 50+ $3.13 100+ $2.79 500+ $2.44 1000+ $2.24 2500+ $2.08 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	5µF	Metallized PP	± 5%	Stud Mount - M8	470V	Quick Connect	20V/µs	13.4mm	C27 Series	30mm	56.5mm	-25°C	85°C

4.16.10.26.64	05M2917 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 25 µF, ± 5%, Stud Mount - M8, 450 V DUCATI You previously purchased this product. View in Order History	Each	1+ $13.43 10+ $12.81 25+ $11.08 50+ $10.24 100+ $9.10 250+ $8.64 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	25µF	Metallized PP	± 5%	Stud Mount - M8	450V	Quick Connect	20V/µs	14.4mm	4.16.10 Series	40mm	92mm	-25°C	70°C

C274AC35250AA0J	67R8909 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 25 µF, ± 5%, Stud Mount - M8, 470 V KEMET You previously purchased this product. View in Order History	Each	1+ $9.85 10+ $8.54 25+ $8.10 50+ $7.65 100+ $6.66 250+ $6.50 500+ $6.01 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	25µF	Metallized PP	± 5%	Stud Mount - M8	470V	Quick Connect	20V/µs	13.4mm	C27 Series	45mm	93mm	-25°C	85°C

27L6022	13M3904 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 25 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $28.06 5+ $26.64 10+ $25.29 25+ $22.91 50+ $20.85 100+ $20.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	25µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	50.8mm	120.65mm	-40°C	70°C

27L6094	83H0241 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 3 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $10.66 10+ $10.24 25+ $9.79 50+ $9.22 100+ $8.92 250+ $8.73 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	3µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	31.75mm	98.55mm	-40°C	70°C

27L6073	95C0416 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 15 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $16.57	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	15µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	44.45mm	120.65mm	-40°C	70°C

27L6017	13M3902 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 10 µF, ± 6%, Panel Mount, 660 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $16.66 10+ $14.16 25+ $12.83 50+ $11.84	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	10µF	Metallized PP	± 6%	Panel Mount	660V	Quick Connect	-	20.57mm	GEM III 27L Series	38.1mm	98.55mm	-40°C	70°C

C274ACF4400LF0J	67R8894 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 4 µF, ± 5%, Stud Mount - M8, 470 V KEMET You previously purchased this product. View in Order History	Each	1+ $7.83 10+ $6.79 25+ $6.45 50+ $6.09 100+ $5.54 250+ $4.98 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	4µF	Metallized PP	± 5%	Stud Mount - M8	470V	Wire Leaded	20V/µs	-mm	C27 Series	30mm	58.5mm	-25°C	85°C

68462-4-7320	13H6636 Data Sheet + RoHS	Film Capacitor, For Multi Speed Blower, 3 µF, 450 VAC, Wire Leaded, ± 5% EBM-PAPST You previously purchased this product. View in Order History	Each	1+ $10.41 5+ $9.58 10+ $8.85 25+ $8.02	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	3µF	-	± 5%	Stud Mount - M8	450V	Wire Leaded	-	-mm	-	25mm	49mm	-25°C	70°C

C274AC35400AA0J	67R8911 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 40 µF, ± 5%, Stud Mount - M8, 470 V KEMET You previously purchased this product. View in Order History	Each	1+ $13.47 10+ $12.13 25+ $11.12 50+ $10.60 100+ $10.19 250+ $9.79 500+ $9.29 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	40µF	Metallized PP	± 5%	Stud Mount - M8	470V	Quick Connect	20V/µs	13.4mm	C27 Series	50mm	120mm	-25°C	85°C

97F5300	46F3403 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 10 µF, ± 6%, Panel Mount, 440 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $15.76 10+ $14.96 25+ $13.89 50+ $12.18 100+ $11.36 250+ $10.98 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	10µF	Metallized PP	± 6%	Panel Mount	440V	Quick Connect	-	20.57mm	GEM III 97F5000 Series	31.75mm	98.55mm	-40°C	70°C

4.16.10.03.64	05M2900 Data Sheet RoHS	Film Capacitor, 4.16.10 Series, 3 F, 5%, PP (Polypropylene), 450 VAC, Can RoHS Compliant: Yes DUCATI You previously purchased this product. View in Order History	Each	1+ $5.41 10+ $4.80 25+ $4.45 50+ $4.10 100+ $3.64 500+ $3.30 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	0	0	0	0	0	0	0	0	0	0	0	0	0	0

99284-4-7320	47M3014 Data Sheet + RoHS	Motor Run Capacitor, Wire Leaded, Can, 4 µF, Stud Mount - M8 EBM-PAPST You previously purchased this product. View in Order History	Each	1+ $11.93 5+ $10.98 10+ $10.14 25+ $9.18 50+ $8.48	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	4µF	-	-	Stud Mount - M8	-V	Wire Leaded	-V/µs	-mm	-	28mm	55mm	-25°C	85°C

MR/P/440/20/B	97K5381 Data Sheet + RoHS	Film Capacitor, MR/P/440 Series, 20 F, 10%, PP (Polypropylene), 440 VAC, Can RoHS Compliant: Yes LCR COMPONENTS You previously purchased this product. View in Order History	Each	1+ $11.90 10+ $11.36 25+ $9.82 50+ $9.07 100+ $8.06 250+ $7.65 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	0	Metallized PP	± 10%	Stud Mount - M8	0	Wire Leaded	0	0	0	0	0	0	85°C

97F9121	90B5615 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 15 µF, ± 6%, Panel Mount, 370 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $13.92 5+ $13.92 10+ $13.92 25+ $13.92 50+ $13.92	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	15µF	Metallized PP	± 6%	Panel Mount	370V	Quick Connect	-	20.57mm	GEM III 97F9000 Series	44.45mm	53.85mm	-40°C	70°C

97F8240	13M4436 Data Sheet + RoHS Date/Lot Code	Motor Run Capacitor, Metallized PP, Can, 1.5 µF, ± 6%, Panel Mount, 600 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $9.33 10+ $8.22 25+ $7.47 50+ $7.24 100+ $7.00 250+ $6.06 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	1.5µF	Metallized PP	± 6%	Panel Mount	600V	Quick Connect	-	20.57mm	GEM III 97F8200 Series	31.75mm	53.85mm	-40°C	70°C

97F5339	13M4402 Data Sheet + RoHS	Motor Run Capacitor, Metallized PP, Can, 5 µF, ± 6%, Panel Mount, 440 V GENTEQ You previously purchased this product. View in Order History	Each	1+ $12.56 10+ $11.92 25+ $11.08 50+ $9.71 100+ $9.06 250+ $8.75 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	Can	5µF	Metallized PP	± 6%	Panel Mount	440V	Quick Connect	-	20.57mm	GEM III 97F5000 Series	31.75mm	73.16mm	-40°C	70°C