The motor is a 3-phase synchronous high efficiency permanent magnet submersible motor of canned type. All surfaces in contact with pump media are made of stainless steel. The motor is a IPM type with embedded magnets in the metal cladded rotor – needs frequency drive to start and speed regulate. Radial- and thrust bearing are of journal type lubricated by the motor liquid – water filled construction. Construction with mechanical shaft seal and diaphragm to ensure minimal exchange of pump media and motor liquid.