A float switch detects the liquid level in a tank or container. The switch floats on top of or within the liquid and acts as a mechanical switch as the liquid level goes up or down. Float switches control devices like pumps (by pumping the water in or out), valves (by opening/closing the inlet/outlets), or alarms to notify users. Float switches are cost effective and reliable, and they are suitable for applications with various liquids.
How a Floatswitch Works
A float switch moves up and down with the liquid level. Depending on the counterweight and pre-set trigger, the mechanical switch opens or closes when it rises or lowers to specific levels. When the switch closes, an electrical current passes through the switch to the connected device. For example, when an electrical current is sent to a pump, the pump turns on. A float switch consists of a hollow floating body and an internal switch, also called a sensor. The most common internal switch is a reed switch that has a magnet inside the body. There are other internal switch types, but all of these switches use the same working principle. The mechanical switch creates an open or closed electrical circuit depending on the water level within a tank or pond.
Rated current/voltage: AC 10(8A) 250V~10(4A) 380V
Working temperature: 0°C~60°C
Cable length: 3m
