The number of throws indicates how many different output connections each switch pole can connect its input to.
Single pole single throw toggle switch.
Single pole throw and double pole throw switches are by far the most common switches but triple and quadruple configurations are also available.
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A single throw switch is a simple on.
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A single pole single throw switch serves in circuits as on off switches.
In other words it s like two simple switches controlled by a single actuator.
This means it only has one input terminal and only one output terminal.
A double pole single throw dpst switch controls the connections to two wires at once where each wire only has one possible connection.
Double pole double throw.
A single pole single throw spst switch is a switch that only has a single input and can connect only to one output.
It can serve as an on off switch depending on how the circuit is wired.
Dt switches close a circuit in the up position as well as the down position on on.
A dt switch can also have a center position frequently on off on.
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The two most common types are single throw and double throw.
Double pole single throw.
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.
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Single pole double throw.
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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Single pole single throw.
Spst single pole single throw on off toggle switch 12v 15a 6v 25a.
This means it has one input terminal and two output terminals.
The other position of the handle is off.