Float Switch and Electrode

Published on 07.07.2025

#Tsurumi pumps can be operated automatically in two ways: Via activation by a float switch or via an electrode.

Float switch

Float switches are often used where the performance of a pump is to depend on the water level. The switch is located in a piston that floats on the surface of the water. When the water level rises or falls, the float moves into position and opens or closes an internal switch that controls the pump's output.

Electrode

An electrode sensor recognises water based on its conductivity. It activates the pump when it is submerged under water. Unlike float switches, electrode sensors do not rely on mechanical movements. Instead, they utilise the natural conductivity of water to trigger an electrical reaction. Electrode sensors are permanently mounted directly on the pump. Ideal for installations where space is limited or a float mechanism could be blocked.

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