The number of throws indicates how many different output connections each switch pole can connect its input to.
Single pole single throw toggle switch.
The other position of the handle is off.
Single pole throw and double pole throw switches are by far the most common switches but triple and quadruple configurations are also available.
A double pole switch is like two separate single pole switches that are mechanically operated by the same lever knob or button.
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A single throw switch is a simple on.
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A single pole single throw spst switch is a switch that only has a single input and can connect only to one output.
This means it has one input terminal and two output terminals.
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The two most common types are single throw and double throw.
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Double pole double throw.
A double pole single throw dpst switch controls the connections to two wires at once where each wire only has one possible connection.
Dt switches close a circuit in the up position as well as the down position on on.
A single pole single throw switch serves in circuits as on off switches.
This means it only has one input terminal and only one output terminal.
Double pole single throw.
A dt switch can also have a center position frequently on off on.
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In other words it s like two simple switches controlled by a single actuator.
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A single pole double throw spdt switch is a switch that only has a single input and can connect to and switch between 2 outputs.
Single pole double throw.
It can serve as an on off switch depending on how the circuit is wired.
A single pole double throw switch can serve a variety of functions in a circuit.