The Rule float switch is robust and durable and perfectly designed for controlling water pumps.
When the water level is low the switch sits idle but as the water level increases the floating arm rises with the water and once the maximum level is reached the switch is activated. This activates the contected water pump which should then do it’s job until the float switch is lowered to the ‘off’ position, at which point the pump will then turn off.
For pumps up to Rule 1100 size.