A two pole AC induction motor completely enclosed in the enclosure powers these regenerative monoset pump sets. An electric motor's stator is made of silicon steel laminations that are pressed and locked rigidly into the frame to reduce watt loss. It uses enamelled copper wire windings that are varnish impregnated and are of the highest quality. The use of quality materials and construction of the motor frame result in a motor with a longer life cycle and a lower temperature rise.