This product is designed to control pump operation and monitor liquid levels. It can also be installed with submersible pumps to provide motor control and protection. Sealed with polypropylene for reliable performance, it is suitable for use in swimming pools, barrels, tanks, and other containers holding water, oil, acid, or alkaline solutions in residential, industrial, and mining applications. The float switch operates based on gravity and buoyancy principles, featuring a simple and robust design. It offers easy installation, automatic adjustment, safe and reliable operation, and is environmentally friendly. For motors rated at 750W or less, the float switch can be used directly. For motors exceeding 750W, an AC contactor is recommended. Size: 5 inches