Littelfuse, Inc. Datasheets for Level Switches

Level switches is a generic search term for devices that are used to detect liquid or powder levels, or interfaces between liquids. These level measurements are indicated via an electrical switching action.
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Product Name Notes
The 460-15-100-LLS is a liquid level sensor to detect the presence of conductive liquids. A probe is mounted at the desired tank level and connected to the Littelfuse pump control.
The 460-15-100-SLD is a seal-leak detector to sense seal failures on submersible pumps. A microcontroller-base d relay monitors the shaft seal of a submersible pump motor. A resistive probe is...
The model 201-100-SLD is an 8-pin plug-in style seal-leak detector to sense seal failures on submersible pumps. A microcontroller-base d relay that monitors the shaft seal of a submersible pump...