Abstract: A motor start and run system for a single phase motor provides a predetermined period for starting the motor during which power is delivered to a start winding of the motor. It also provides a time delay after the motor is deenergized before the motor may be restarted. These two control times are essentially determined by thermal time constants associated with a package having two PTCRs. These two PTCRs are thermally coupled and have different anomaly temperatures. A dual-PTCR package is also disclosed for use in said motor start system having provision for strongest thermal coupling with the environment for the PTCR having the higher anomaly temperature.