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Switches: Poles, Throws & Relays -- The Learning Circuit 44

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Switches: Poles, Throws & Relays

The Learning Circuit | element14 presents |  Project Videos

 

 

After doing an overview of the various types in an earlier TLC episode, Karen returns to the topic of switches to clear up the confusion involving poles and throws and to talk about how inductors factor into relays.

 

Parents

  • Hi Karen,

    Great presentation on switches.Some switches have an internal light which can add some extra confusion to the purpose of the connection pins. If a data sheet isn't available it is sometimes possible to see where the wires from the light are attached to the pins. The inclusion of a light may restrict the voltage that can be used with the switch to the voltage range that the light will need to function. While it is trivial, a couple of switch types that were not mentioned are the normally open and normally closed momentary switches which play a very dominant role in our technology.

    John

Comment

  • Hi Karen,

    Great presentation on switches.Some switches have an internal light which can add some extra confusion to the purpose of the connection pins. If a data sheet isn't available it is sometimes possible to see where the wires from the light are attached to the pins. The inclusion of a light may restrict the voltage that can be used with the switch to the voltage range that the light will need to function. While it is trivial, a couple of switch types that were not mentioned are the normally open and normally closed momentary switches which play a very dominant role in our technology.

    John

Children