float switchs

Discussion in 'General Discussions and Advice' started by mike Bushie, 26 Nov 2008.

  1. mike Bushie

    mike Bushie

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    hey guys how does a float switch actually work ps i know when the water level drops the floating white thing drops but what happens next inside the float switch to allow it to close the circuit?
     
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  3. goodisor

    goodisor

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    Hi Mike.The float is magnetic and the contacts inside the centre shaft are activated by it(pulled together) when the float passes them
     
  4. mike Bushie

    mike Bushie Thread Starter

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    thanks bud.
     
  5. Apollo

    Apollo

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    Mike,

    Float switches are designated as either having normally open (NO) or normally closed (NC) contacts or a combination of both ( change-over switch)depending on whether the float switch will actuate only an alarm or in the case of a auto-top up it will actuate a pump.
    As the float moves up or down it will either close or open the contacts, thereby actuating an alarm, pump or whatever function you desire it to perform.

    Hope this answers your question
     
    viper357 likes this.
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