MOTOR: The pumps are coupled to an asynchronous, high efficiency TEK induction motor of suitable size, which is quiet, closed and externally ventilated, suitable for continuous duty. The thermal cutout replay (motor protector ) is incorporated in all single phase motors. Three phase motors require an adequate external motor protector, with connections according to current standards. INSULATION: class B (Class F) PROTECTION: IP 44. WARRANTY: 1 year