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A float switch is a device that is used to detect the level of water in a tank. Based on the water level, it will open or close an electrical circuit generally used to pump water in or out of the tank.
The float switch moves with the water level up and down. An internal mechanical switch opens or closes an electrical circuit with gravity. The electrical circuit can then be used to turn on/off equipment, like a water pump.
The float switch monitors the level of water in a tank. It then opens or closes an electrical circuit based on the water level and wiring to control external components.
The float switch is installed in a water tank. First, a pre-set level needs to be made and can be done with a counterweight. Then, based on a normally open or closed wiring configuration, the float switch will open or close the electrical circuit based on its movement up or down with the liquid level.
A float switch can be wired in the normally open or normally closed position. A normally open position is open when down (low water level) and a normally closed position is closed when down. The open or closed position refers to the electrical circuit.
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