High efficiency, high temperature insulation system. Capable of withstanding temperatures over 300-degrees fahrenheit. Reduces motor failures due to heat aging. Premium moisture resistant insulation system. Styrenated epoxy coating on rotor prevents rust build-up and extends the life of the motor. 115-Volt, all copper windings, no base, 56Z frame. Auto reset thermal overload protection. Superior starting switch features. Heavy-duty bronze bearing. Mechanically and electrically approved for evaporative cooler applications. Label and instructions in English and Spanish. UL Approved construction.