Capacitors - Single

Commonly used with furnace blower motors, a/c condenser motors, a/c compressors and refrigeration compressors. Choose from two can styles;  Oval and Round Choose from 370 and 440VAC Capacitors are rated by microfarads (uF) and voltage. It is desirable to replace a capacitor with an identically rated capacitor.  Motors operate at maximum efficiency when using a specified capacitor size. However a plus or minus 10 % rule of thumb applies to the microfarad rating when changing out a capacitor. If necessary, the replacement capacitor voltage rating can be higher than specified, but not lower without effecting the capacitor life. Always replace the run capacitor when installing a new motor. If a defective capacitor is in the circuit the motor will probably not run. If it does run, it will operate as if it is overloaded. The motor speed will be low; it will overheat and probably activate the motor overload protector causing short cycling.