Dwyer Series CFS2 cable float switch

The Series CFS2 cable float switch is a mechanically actuated floating switch intended to activate electrical components, usually pumps, to start and stop automatically. The CFS2 is suitable for simple level control of liquids for filling or draining reservoirs and tanks.

Float switches such as the CFS2 are the most universally used for pump automation, due to their high reliability, economical pricing and easy installation. Counterweights and cable hangers are available to suit a variety of mounting applications. Optional cables available include those with UL/CSA approval, higher chemical compatibility, high temperature durability, oil resistance and drinking water suitability. Piggyback plugs, gold contact switches and different cable lengths (3.04 to 21.34 m) are available as options.

The CFS2 features a mercury-free microswitch housed in a waterproof casing made of polypropylene. The position of the float changes, depending on the liquid level, determining the microswitch position.