Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw. Wire a dpdt rocker switch for reversing polarity.
A Circuit Block Diagram Of Conventional Spdt Switches B
Dpdt switch diagram. These terminals receive the power necessary to drive the loads on terminals 1 and 5 and 2 and 6. A circuit diagram with an led resistor and a switch. Sp switches control only one electrical circuit. Dpdt on off on functions like two separate spdt switches operated by the same actuator. A double pole double throw switch is used for this purpose but you have to wire it up correctly. Adding another pole to the spdt creates a double pole double throw dpdt switch.
Switch between 2 different loads with dpdt switch in this second application we can use the dpdt switch to choose between 2 different load and have a visual indication of what load is connected. Only two loads can be on at a time. The wiring diagram to the right will show how to wire and power this 12v 20amp on off on 3 way carling contura rocker switch. A dpdt toggle switch has 6 terminals. Below is the schematic diagram of the wiring for connecting a dpdt toggle switch. Dp switches control two independent circuits and act like two identical switches that are mechanically linked.
Pole refers to the number of circuits controlled by the switch. We will now go over the wiring diagram of a dpdt toggle switch. Terminals 3 and 4 represent the toggle switch. When the switch is closed current flows and the led can illuminate. This is a double pole double throw dpdt momentary illuminated momentary rocker switch it has one ind lamp at the top. Below is an example of a circuit which utilizes a double pole double throw switch.
In our case figure 1 when there is no voltage applied to the coil the fan and green led are turned on. Otherwise no current flows and the led receives no power. Single pole one circuit controlled by the switch. When the dpdt switch is switched one way flipped upward in the diagram the lamp and buzzer are both on while the led and speaker are off. When you need to control a dc motor such as a dc linear actuator you usually need to be able to swap the polarity on the wires going to the motor. What do spst spdt dpst and dpdt mean.
You can see above how a double pole double throw switch can allow a circuit to be in 1 of 2 modes. Basically two spdt switches which can control two separate circuits but. Switch reference guide spst spdt dpst dpdt sp and dp refer to single pole and double pole st and dt refer to single throw and double throw. Variety of 6 pin dpdt switch wiring diagram. 6 pin dpdt switch wiring diagram on off illuminated rocker switch wiring diagram to double pole throw rh natebird me carling dpdt rocker switch wiring diagram dpst switch wiring diagram.
Gallery of Dpdt Switch Diagram
