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Motor Run Capacitor

MOTOR RUN CAPACITOR Single-phase AC electric motors require a “Run Capacitor” to energize the second-phase winding (auxiliary coil) to create a rotating magnetic field while the motor is running. Motor run capacitors are designed for continuous duty while the motor is powered. Run capacitors are mostly polypropylene film capacitors and are energized the entire time the motor is running. Motor run capacitors are also usable for general sine wave applications such as filters, inverters, UPS devices, etc. Available in: Dry Type in PP & Aluminum Can in both Pin & Wire type
Motor Run Capacitors
halcap capacitor

Key Features

Extended Service Life

long operational life, supporting continuous motor duty

Self-Healing

Utilizes Metallized Polypropylene (MPP) film with self-healing

Efficiency

Can be applied to 450VAC - 50/60HZ AC Power System

Low Field Failure Rate

Manufactured under strict quality controls to ensure consistent performance

Applications

Single Phase Motor Capacitor
Single Phase Motor Capacitor
Mono Block Pump Set Capacitor
Mono Block Pump Set Capacitor
Submersible Pump Capacitor
Submersible Pump Capacitor
Industrial Blower Capacitor
Industrial Blower Capacitor

Technical Specifications

Parameter Technical Details
Capacitance Range
1 mfd to 80 mfd
Capacitance Tolerance
±5%
Rated Voltage
440 Volts
Rated Frequency
50 / 60 Hz
Power Factor / Tangent Loss Angle
0.002
Case Material
PP & Aluminium Can
Dielectric
Metallized P.P. Film
Encapsulation
Polyurethane Resin
Insulation Voltage between Terminals
2 x Rated Voltage AC
Insulation Voltage between Case & Terminals
2000 VAC
Terminals
Flexible Wire / Pin Type
Polarity
Can be connected either way
Safety Class
P0
Standards
IS 2993 – 1998
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  • FAQs

Helping You Make the Right Choice

What is the difference between a Motor Run Capacitor and a Motor Start Capacitor?
A Motor Run Capacitor provides continuous power to the motor during operation, while a Motor Start Capacitor is used only during the motor’s start-up phase.
Always select a capacitor with the voltage and capacitance ratings specified by the motor manufacturer to ensure compatibility.
A failing capacitor can lead to reduced motor efficiency, overheating, or complete motor failure.
Yes, they are widely used in HVAC systems, refrigerators, and other equipment requiring consistent motor performance.