Abstract: A submersed electric motor, comprising a stator assembly arranged within an annular stator chamber, the annular stator chamber being formed between an outer tubular jacket, an inner tubular jacket which is coaxial to the outer tubular jacket, with two annular end covers adapted to close the annular interspace between the outer jacket and the inner jacket, the annular stator chamber containing solid insulating resin that is adapted to embed the electrical elements contained in the chamber, a rotor, arranged inside the inner tubular jacket, an electrical connector, which is adapted for connection to an outlet with an electric power supply cable; the electrical connector comprises electrical terminals for the electrical connection of said stator assembly which are arranged so as to protrude from the solid resin and are surrounded by walls of the same solid resin which form a seat for a power supply outlet, which is open onto a through hole formed in an annular end cover.

Abstract: A containment structure for an actuation unit for compact immersion pumps for wells having a box-like casing, which is fitted over an electric actuation, motor for pumps, which it encloses hermetically, a cartridge, which accommodates a driving device of the motor and has a radial space occupation that is substantially smaller than, or equal to, the radial space occupation of the casting, and quick-coupling connectors provided at a head of the cartridge and at a bottom of the casing, adapted for the quick and reversible connection of the cartridge to the casing, the connectors comprising at least one power supply connector, adapted to electrically connect the driving device to an electric power supply, with which the casing is equipped, and at least one control connector, which is adapted for the functional connection of the driving device to the motor for driving it.

Abstract: A containment structure for an actuation unit for immersion pumps, particularly for compact immersion pumps for wells, comprising a box-like casing, which is fitted over an electric actuation motor for pumps, which it encloses hermetically, a cartridge, which accommodates a driving device of the motor and has a radial space occupation that is substantially smaller than, or equal to, the radial space occupation of the casing, quick-coupling connectors provided at a head of the cartridge and at a bottom of the casing, adapted for the quick and reversible connection of the cartridge to the casing. The connectors comprise at least one power supply connector, adapted to electrically connect the driving device to an electric power supply, with which the casing is equipped, at least one control connector, which is adapted for the functional connection of the driving device to the motor for driving it.