The Best 50Uf 400V Capacitor of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 50Uf 400V Capacitor of 2025. Check our ranking below.

2,195 Reviews Scanned

Rank No. #1

50UF CBB60 Motor Run Capacitor 450VAC Volts Round Cylinder 4 Pins, Metallized Polypropylene Film Capacitor for Motor Run, Air Conditioners, Washing Machines, Operating Voltage Range 250V ~ 450V

✅Specification：Capacity: 50uF; Rated voltage: AC 450V; Tolerance: +/-5%; Material of Capacitor: Metallized polypropylene film Body Size: Dia. : 50 mm ( 1.97 inch ), Height : 92 mm (3.62 inch ) Operating temperature range: -40℃ to +85℃/ -40℉ to 185℉;
✅Replaces: any capacitor brand with same specifications. CBB60 capacitor is widely used for air compressors, water pumps, pressure washers, air conditioners, washing machines, motors, generators, HVAC, fans, drills, splitters, saws, grinders, etc.
✅Shape of Capacitor: The shape of the capacitor only affects the fitting on the equipment. The actual performance or capacities do not vary regarding the shape of the capacitor.
✅Strong overload capability: The current has good impact resistance and strong overload capability.
✅Note: Before purchasing this capacitor, please refer to the electrical specifications of the original capacitor to ensure you select the appropriate one. This capacitor does not have positive or negative poles and can be wired freely.

Rank No. #2

VEXUNGA 50uF 50 MFD 370VAC 440VAC 450VAC 50/60Hz CBB65 CBB65B Run Start Capacitor for AC Unit Fan Motor Start or Pool Pump or Air Condenser Straight Cool

VEXUNGA 50uF ±6% 370/440/450 VAC CBB65 round run start capacitor replacement for ALL 250 & 300 & 370 & 440 & 450 Volt capacitors.
50 MFD Capacitor size measures ( 1.97inch / 50mm ) in Diameter x ( 3.94inch / 100mm ) in Height.
Operating temperature: -40℃ to +70℃/-104℉ to +158℉. Frequency: 50/60 Hz.
Applicable to the frequency of 50hz / 60hz ac power supply one-way motor starting and running, and it is widely used for pool pump, washing machine, cleaning machine, single phase electric motor, air compressor as starting and running.
SUPER EASY to Replace: Direct replacement, No wiring or adapter changes required. Capacitor has two terminals on the top.

Rank No. #3

50UF MFD CBB60 Motor Run Capacitor 450VAC Volts Round Cylinder 2 Wires, Metallized Polypropylene Film Capacitor for Motor Run, Air Conditioners, Washing Machines and Water Pumps

✅Specification：Capacity: 50uF; Rated voltage: AC 450V; Tolerance: +/-5%; Material of Capacitor: Metallized polypropylene film Body Size: Dia. : 50 mm ( 1.97 inch ), Height : 92 mm (3.62 inch ), wire length: 19 cm Operating temperature range: -40℃ to +85℃/ -40℉ to 185℉;
✅Replaces: any capacitor brand with same specifications. CBB60 capacitor is widely used for air compressors, water pumps, pressure washers, air conditioners, washing machines, motors, generators, HVAC, fans, drills, splitters, saws, grinders, etc.
✅Shape of Capacitor: The shape of the capacitor only affects the fitting on the equipment. The actual performance or capacities do not vary regarding the shape of the capacitor.
✅Strong overload capability: The current has good impact resistance and strong overload capability.
✅Note: Before purchasing this capacitor, please refer to the electrical specifications of the original capacitor to ensure you select the appropriate one. This capacitor does not have positive or negative poles and can be wired freely.

Rank No. #4

uxcell CBB60 Run Capacitor 50uF 450V AC Double Insert 50/60Hz Cylinder 94x49mm White for Air Compressor Water Pump Motor

[Specification] - Rated Capacity: 50uF; Tolerance: ±5%; Rated Voltage: 450V AC; Body Size: 94x49mm / 3.7x1.9inch(L*D); Rated Frequency: 50/60Hz
[Characteristic] - This CBB60 run capacitor has characteristics of small volume, light weight, low loss, anti-overvoltage shock, excellent electrical performance and long service life
[Working Environment] - This CBB60 capacitor is applied to starting and working of a single-phase motor in a 50Hz/60Hz AC electric power system
[Application] - The start capacitor is widely used for air compressors, water pumps, pressure washers, air conditioners, washing machines, motors, generators, HVAC, fans, drills, splitters, saws, grinders, etc
[Note] - 1. Before purchasing this product, please refer to the electrical specification of the original capacitor to select the appropriate capacitor; 2. This capacitor has no positive and negative poles, it can be wired at will. If the capacitor of your motor and air compressor is burnt out or weak, you need to replace it with a new one

Rank No. #5

QYCKFIXR AC Capacitor 50uF or 50MFD ±6% 370V/440VAC CBB65 Round Start Capacitor for Heat Pump Air Conditioner，for AC Motor Run or Fan Start and Cool，Ten Years of Coverage

QYCKFIXR 50 uf or 50MFD 440 Volt AC Capacitor. Replaces BOTH 370 VAC & 440 VAC capacitors
Ten years of coverage.We are committed to providing our customers with the best product quality and after-sales service, you can purchase with confidence.
Built to the TOUGHEST USA standards for AC motor run capacitors including EIA-456-A and IEC 60252-1:2001
Capacitor dimension: Diameter(50 mm/1.97 inch) Height(110 mm/4.33 inch)
Operating temperature: -40 ℃ to +70℃/-104℉to+158℉ ，Safety rated: 10,000 AFC

Rank No. #6

IWIWE 50uF (50 MFD) ±5% 370/440/450VAC CBB65/CBB65B Run Start Capacitor for AC Unit, Fan Motor, Pool Pump, Air Condenser

Multi-Voltage & Wide Compatibility:50uF (50 MFD) ±5% run start capacitor works with 250/300/370/440/450VAC systems, directly replacing all these voltage types to simplify procurement. It’s widely applicable to 50/60Hz AC one-way motors, fitting AC units, fan motors, pool pumps, air condensers, washing machines, cleaning machines and air compressors.
Quality & Durability:Adopting CBB65/CBB65B standard structure, it offers reliable start and run performance with low power loss. With excellent insulation, it operates stably at 50/60Hz in -40℃ to +70℃ (-104℉ to +158℉) environments, featuring strong surge current resistance.
Precise Size & Direct Replacement:Measuring 1.97in (50mm) in diameter × 3.94in (100mm) in height, it 1:1 matches original installation spaces—even narrow cavities—for seamless fit. No modifications are needed for direct replacement, ensuring compatibility with original equipment.
Tool-Free Easy Installation:Top terminals (2 total) are designed for intuitive wiring, no wiring adjustments, adapters or professional tools required. Just match the old capacitor’s wiring (photo recommended), connect the terminals, and complete installation in minutes. It’s DIY-friendly for home and light commercial equipment repair.
Reliable Operation:The capacitor maintains consistent capacitance with ±5% tolerance, reducing drift to keep motors running smoothly. It provides stable start and run support for various appliances, ensuring reliable performance in daily use and harsh working environments.

Rank No. #7

VEXUNGA CBB60 Capacitor 50uF 450V AC Run Capacitors 450VAC 50 µF 50MFD SH Start Motor Capacitor 50/60Hz ±5% 50x103MM with Wire for Air Compressor

VEXUNGA CBB60 50uF Capacitor Motor Starting Run Capacitors for Electrical Household Appliances
Nominal Capacity: 50uF; Nominal Voltage: 450V AC; The equivalent series resistance (ESR) is 0.2; Operating Temperature: -25 ℃ to +70 ℃/ -13℉ to +158℉. Frequency: 50/60 Hertz
Advantages: CBB60 motor run SH capacitor low losses, excellent self-healing properties and high insulation resistance. Performance is stable, long service life
Easy Installation: Capacitors are supplied with cables so they can be easily installed in a wide range of applications including compressors, fans, water pump motors, air conditioners and washing machines
Package Content: 1 pcs x 50uF CBB60 Run Capacitor

Rank No. #8

50UF MFD CBB60 Motor Run Capacitor 250VAC Volts Round Cylinder 2 Wires, Metallized Polypropylene Film Capacitor for Motor Run, Air Conditioners, Washing Machines and Water Pumps

✅Specification：Capacity: 50uF; Rated voltage: AC 250V; Tolerance: +/-5%; Material of Capacitor: Metallized polypropylene film Body Size: Dia. : 40 mm ( 1.57 inch ), Height : 73 mm (2.87 inch ), wire length: 19 cm Operating temperature range: -40℃ to +85℃/ -40℉ to 185℉;
✅Replaces: any capacitor brand with same specifications. CBB60 capacitor is widely used for air compressors, water pumps, pressure washers, air conditioners, washing machines, motors, generators, HVAC, fans, drills, splitters, saws, grinders, etc.
✅Shape of Capacitor: The shape of the capacitor only affects the fitting on the equipment. The actual performance or capacities do not vary regarding the shape of the capacitor.
✅Strong overload capability: The current has good impact resistance and strong overload capability.
✅Note: Before purchasing this capacitor, please refer to the electrical specifications of the original capacitor to ensure you select the appropriate one. This capacitor does not have positive or negative poles and can be wired freely.

Rank No. #9

SIGANDG 50uF 50 MFD 370V or 450V CBB65 Run Start Capacitor 50 uF 370 450 Volt VAC for Condenser Straight Cool or Heat Pump Air Conditioner

SIGANDG 50uF 370V/450V AC Capacitors, CBB65 Dual Run Round Capacitor, used in the air conditioners, compressors and motors，Replaceable 370 VAC & 450 VAC Capacitors
Operating Temperature: -40℃ to +70℃ / -104℉ to +158℉
Safety Protection Level: S1.Engineered for Safety 10000 AFC Anti Explosion Pressure Switch
Dimension:diameter 2.17 inch, height 3.94 inch
Industrial Grade Replacement for Central Air-Conditioners, Heat Pumps, Condenser Fan Motors, and Compressors.It is small in size, lightweight, heat resisting and anti-explosion.

Rank No. #10

JYUK 50uF Motor Run Capacitor, 400V-500V, ±5% Tolerance, White Cylindrical with Wire Leads

CAPACITANCE & TOLERANCE: 50 microfarad (µF) capacitance with ±5% tolerance ensures reliable and consistent motor performance for various applications
VOLTAGE RATINGS: Multi-voltage rated at 400V~10000h/cl.B, 450V~3000h/cl.C, and 500V~120/20%~1000h.cl.D for versatile compatibility with different motor systems
MOTOR RUN DESIGN: Specifically engineered as a motor run capacitor to provide continuous duty operation and improve motor efficiency in HVAC systems, pumps, and other motor-driven equipment
CONSTRUCTION: White cylindrical design with pre-attached wire leads for easy installation and secure electrical connections without additional terminals
CERTIFICATIONS & STANDARDS: TUV certified and meets EN60252 safety standards, ensuring quality and compliance with international electrical component regulations

Last update on 2026-04-01 / Affiliate links / Images from Amazon Product Advertising API

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FAQ:

Q: What is starting capacitor and run capacitor?

A: Run Capacitors. Run capacitors are more commonly used in air conditioning systems than start capacitors. … Start Capacitors. Start capacitors are the second most commonly found capacitor within an AC system. … AC Capacitors. … Generator Capacitor. … Refrigerator Capacitor. … Replace Your Run Capacitor with Repair Clinic. …

Q: What is dual run capacitor?

A: A dual run capacitor is two run capacitors combined into a single case. It will have three terminals labeled “C,” “FAN,” and “HERM” for the common, fan, and hermetic compressor connections. A dual run capacitor is often used for air conditioning, heat pump, and ventilation units, which require starting of the condenser fan motor and the compressor.

Q: What is capacitor and inductor?

A: Capacitors and inductors are both circuit components that oppose changes in current in circuits. The main difference between capacitor and inductor is that a capacitor stores energy in the form of an electric field whereas an inductor stores energy in the form of a magnetic field.

Q: What are fixed capacitors?

A: A fixed capacitor is a part of an electronic device or electrical appliance that helps maintain a constant charge and energy output. It helps store energy and moderates its flow. In general there are two broad types of capacitors, either fixed or variable.