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Kenco KEFS Electric Float Switch

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KEFS Electric Float Switch

The KENCO Model KEFS uses a float to determine the presence or absence of liquid in a vessel at the process connection. The float arm assembly consists of a float at one end and a magnet at the other. As the level in the vessel rises, the float rises and the magnet falls. The magnet actuates a second magnet on the other side of the pressure boundary. This second magnet causes the switch to change state.

The pressure boundary contains no seals; it is a solid stainless steel barrier that passes a magnetic field, but no liquids. It is impossible for the process liquid to enter the switch enclosure through this barrier. The electrical contacts consist of a microswitch that can be either a single-pole, Double-throw (SPDT) or Double-pole, Double-throw configuration (DPDT). The SPDT Switch is available with either a 5 Amp or 8 Amp current load. The DPDT Switch is only available with a 4 Amp current load.


  • Simple Installation – Switch can be easily installed at the process connection in the vessel wall with simple hand tools

  • Multiple Circuitry Options – Available with a 5A SPDT, 8A SPDT or 4A DPDT switch

  • High-Temp Option – 5A SPDT version available with High Temperature rating option up to 400°F

  • Stainless Steel Body – All wetted parts including switch body are manufactured from 303 Stainless Steel

  • Seal-less Switch Barrier – Magnetic switch actuator operates through a solid steel barrier. There are no seals between the process and the switch compartment that could potentially cause a switch failure.



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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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