PowerWell 12.5 MFD uf 370 or 440 Volt Fan Motor Run Oval Capacitor Kit PW-CAP-12.5/440 Condenser for Air Handler Straight Cool or Heat Pump Air Conditioner and Zip Tie

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Manufacturer Description

A capacitor is an electric component that temporarily stores an electrical charge. A "run capacitor" supports electric motors, such as in air conditioner or heat pump units, a fan motor or a compressor motor. The capacitor has two terminals.
Capacitors come in a variety of sizes, depending on the capacitance (µF or MFD), such as 12.5 µF, and also the voltage. A 440 volt capacitor can be used in place of a 370 volt, as it is build better, but the 370 can't be used in place of a 440 volt. It will work for a while and will fail prematurely, as exceeding the capacitor's rated voltage will cause the dielectric to break down and the capacitor to short out. Same as an electric wire- 600V rated wire is better than 300V one .The capacitance(µF or MFD) must be the same or stay within 10%+ or 5%- of its original value . Example: 12.5 µF cap can be substituted by 11.87 to 13.75 MFD µF with the same or better voltage ratings capacitor . Oval-shaped run capacitors are commonly used for air conditioning, to help in the starting of the compressor or condenser fan motor.
You will ask "Why I need a Cap that is rated 440V in my A/C?"
Answer: You need to realize that a motor is an inductive device. When the supply voltage is applied to the motor run winding, the voltage across the start winding will be increased to a higher voltage value. A motor acts like a transformer with the run winding acting as the primary and the start winding acting as the secondary. This is why the capacitor has a much higher voltage rating than the 230 being the supply voltage.
If a Capacitor is not EIA-456-A approved means it is not approved for US market.

Product Features

12.5 uf/MFD 440 VAC Capacitor. Replaces BOTH 370 & 440 VAC capacitors The KIT INCLUDE a outdoor rated sun-light resistant nylon-66 UV Stabilized Zip Tie so you can tie the electric wires neatly Built to the toughest USA standards for AC motor run capacitors including EIA-456-A and IEC 60252-1:2001 Can size measures 2" Wide , 2.94" Tall and 1.25 " thick. Operating temperature range -40 C. to +70 C/ -40F to 158F Replacement for 97F9003 , 27L572 , Z97F9003 , P2911253

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