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A float switch with 0.5 metre of cable and a fitted gland to mount on most industrial quality submersible pumps to make them automatic in operation.
The Mac 3 Electromechanical Level Regulator is a float switch which allows electrical equipment to stop and start automatically (usually pumps, but also electric control valves, alarms, etc.) when a prefixed level has been reached. It is highly reliable thanks to a multiple closure device on the fairlead. The Mac 3 is the most universally used float swich in the world for automation of pumps and is used directly by pump producers.
Manufacturer Mac 3 Water Systems