Immersion pump with electronic level supervision arrangement

摘要

The immersion pump includes an electronic level supervision arrangement (22, 30, 32) for the automatic switching of the pump in dependence on the water level, as well as an alarm electrode (42), which triggers an alarm signal, if the pump immerses up to the height of the alarm electrode into an electrically conducting fluid to be pumped off. A cable spout (40) for a power cable (38) protrudes from an upper wall of the pump casing. The alarm electrode is mounted to the cable spout (40) and is electrically connected over the cable spout with a control circuit (32) in the interior of the pump casing. The cable spout is preferably tensioned through an electrically conducting spring (44) which is connected electrically with the alarm electrode and the control circuit.