The single-phase dual-capacitor induction motor merges capacitor-start and capacitor-run philosophies into one compact package. Its stator holds main and auxiliary windings; the auxiliary path hosts two capacitors. A high microfarad electrolytic start capacitor delivers a brief surge, shifting phase up to 80°, while a lower-value oil-filled run capacitor stays permanently in series, maintaining quasi-two-phase conditions. A centrifugal switch isolates the start capacitor at roughly 75 % rated speed, preventing thermal overload. The squirrel-cage rotor, cast from aluminum bars and end rings, responds to the rotating magnetic field, generating torque proportional to slip. Compared with simple split-phase types, the dual-capacitor motor offers 300 % locked-rotor torque and a power factor above 0.90, making it ideal for compressors, pumps, and farm equipment. Efficiency maps published in 2024 IEEE papers show IE2 levels at 1–3 kW ratings when optimized laminations and copper windings are used. Field-oriented control drives can further reduce harmonic losses. Maintenance is straightforward: test capacitors annually with an ESR meter, verify switch contacts, and lubricate bearings every 5 000 hours. When sized correctly, the single-phase dual-capacitor induction motor becomes the sweet spot between cost, torque, and longevity.