The E Series pumps highly efficient ECM (Electronically Commutated Motor) design results in significant energy savings with improved performance. Through microprocessor technology the motor is provided the precise frequency and voltage for optimum performance. A permanent magnet motor eliminates the requirement for input power to magnetize the rotor, thus maximizing efficiency. This unique design offers superior starting torque when compared with standard induction motor type pumps. It is designed to consume 40% less energy while delivering an added variable speed technology that offers further power savings.