Slide the signal wire through the terminal hole. So a spdt switch can power either one of 2 circuits.
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How to wire a spdt switch. Terminal 1 is connected to one load or accessory terminal 3 is connected to another load or accessory. You can use really any color wire you want as long as its copper or aluminum or something conductive. When the relay isnt powered the red led is lit and stays on. Solder the wire to the terminal. Another common switch type is the spdt. Terminal 1 can connect up to any load to power a certain device.
Below is the schematic diagram of the wiring for connecting a spdt toggle switch. I recently ran into a wiring problem and made an illustrated post on how i figured out the solution and some guesses as to why i came to the solution i did. Terminal 2 is the terminal which receives the power necessary so that the loads on terminals 1 and 3 can be powered. One common pin and two pins which vie for connection to the common. The basic design of an spdt center off switch. Terminal 2 is connected to power.
And the wire is sticking straight up and thats going to make it easier to connect to. A spdt is a bit more sophisticated. It makes one of two connections. Were going to connect a single pole double throw relay to a circuit to light up a led. And terminal 3 can connect to any load to power any device. Bend the wire back securing it to the terminal.
Ok so were just crimping that wire against that terminal that comes out of our single pole double throw switch. Spdt toggle switch single position dual throw xx. Most simple slide switches are of the spdt variety. Now that we know what each terminal pin represents we now wire it to a circuit for it to do a real world function. Spdts are great for selecting between two power sources swapping inputs or whatever it is you do with two circuits trying to go one place. This wire will supply the voltage or signal from the source to the switch.
One of the most common pieces of circuit bending hardware is the single position dual throw spdt switch. Connect the source wire to the center terminal. When the relay is powered the red led shuts off and the green led lights up. Spdts have three terminals. Here is a diagram of a spdt toggle switch. A spdt toggle switch has 3 terminals.
Gallery of How To Wire A Spdt Switch
